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Analog Input Channels:
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This is the maximum number of analog channel inputs. The single-ended number is specified when single-ended inputs are available as twice the number of differential inputs. Differential channels use the difference between two signals as an input; common mode is filtered out. In some systems, differential inputs are combinations of two single-ended inputs. When this is the case, twice the numbers of differential channels are available as single-ended inputs.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Differential Channels
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Differential channels have two inputs. The signal to process is the voltage (V) difference between the two inputs. For example, if one reading is 4.93 V and the other reading is 5.16 V, the meaningful value is the 0.23 V difference between the two. Often, this applies to precision measurements where the difference between two low voltage inputs is small but critical.
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| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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| |
Digital I/O Channels:
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Digital or discrete channels are used for low-level on-off signals used in applications such as communication, user interface, or control.
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| |
Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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| |
Sampling Frequency:
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Frequency of analog signal sampling and conversion to a digital value.
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| |
Search Logic:
|
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All matching products will have a value greater than or equal to the specified value.
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| |
RAM / On-board Memory:
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Random access memory; capacity of memory for control software or function / program loading.
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| |
Search Logic:
|
|
All matching products will have a value greater than or equal to the specified value.
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| |
Resolution:
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|
Resolution refers to the degree of fineness of the digital word representing the analog value. A ten-bit number contains 210, or 1024, increments. A 0-10V signal could therefore be resolved into approximately 0.01V increments. A 12-bit representation would be in 212 (4096) increments, or divisions of 0.0024V for the same signal. Each additional bit doubles the resolution, and one bit is required for the polarity (sign) of a number.
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| |
Search Logic:
|
|
All matching products will have a value greater than or equal to the specified value.
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| |
Accuracy:
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Accuracy depends on the signal conditioning linearity, hysteresis, temperature considerations, etc. It is represented here as percent full scale of measurement range.
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| |
Search Logic:
|
|
All matching products will have a value less than or equal to the specified value.
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Computer Bus
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Your choices are...
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CompactPCI
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Compact PCI (cPCI) is a high-performance industrial bus that uses the electrical standards of the PCI bus and is packaged in a Eurocard. Specifications for the CompactPCI bus are developed and maintained by the PCI Industrial Computers Manufacturers Group (PICMG). cPCI buses are used extensively in systems that require high speed data transfers. Examples include data communication routers and switches, real-time machine control, real-time data acquisition, military systems, etc.
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MCA
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The MCA bus, which was designed to replace the ISA bus, uses IBM's microchannel architecture (MCA). It is capable of plug-and-play because adding a card to a microchannel computer does not change the interrupt and DMA settings on the card. The MCA bus was used almost exclusively with IBM's PS/2 product line, but is now discontinued.
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| |
IEEE 1394 (Firewire®)
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IEEE 1394 or FireWire® is an interface standard adopted by the Institute of Electrical and Electronics Engineers (IEEE) for very fast digital data transfers such as streaming video. IEEE 1394 connectors are used to transmit and receive data among FireWire devices, and are designed to replace external high-speed peripheral connections to personal computers, including hard disks, CD-ROMs, DVDs, graphics cards, high-speed scanners, direct video, monitors, etc. Tiny, robust FireWire connectors will also become important parts of home entertainment, communication, and appliance networks. FireWire is a registered trademark of Apple Computer, Inc.
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Industry Pack® Bus (IP)
|
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IndustryPack® (IP) is a mezzanine bus that provides input / output (I/O) capabilities in general-purpose computer systems. IndustryPack is both a registered trademark of GreenSpring computers and a specification maintained by the VITA standards organization (VSO) of the American National Standards Institute (ANSI). IP modules are available in two sizes. Single-size modules are 1.8” x 3.9” (45.3 cm2). Double-size modules are 3.6” x 3.9” (90.6 cm2).
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ISA / EISA
|
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Industry standard architecture (ISA) buses can handle 16-bit data transfers at a clock speed of 8 MHz. They are also capable of handling memory under 16 MB. Extended ISA (EISA) is an enhanced version of the ISA bus. EISA buses run at 8 MHz, are capable of 32-bit data transfers, and can access all memory in the system.
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| |
Nubus (Mac PCI)
|
|
NuBus was the expansion bus for versions of the Macintosh® computer starting with the Macintosh II and ending with the Performa. Macintosh is a registered trademark of Apple Computers. Current Macintosh computers use the PCI bus (Mac PCI).
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| |
MIX Bus
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Modular interface extension (MIX) is a high-performance stacking and communications interface for connecting expansion modules to a VMEbus baseboard. The MIX bus supports 32-bit data transfers and DMA transfers. It also provides 4 GB of memory addressing capability.
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| |
Multibus (I & II)
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Multibus is a modular computer-systems architecture used in embedded applications in telecommunications, medical-devices, manufacturing automation, networking, and other market areas.
|
| |
PC/104 (PC/104-Plus, EBX)
|
|
PC/104 gets its name from the desktop personal computers designed by IBM (PCs), and from the number of pins used to connect the cards together (104). PC/104 cards are much smaller than ISA-bus cards and stack together eliminating the need for a motherboard, back plane, and/or card cage. PC/104-Plus incorporates the PCI bus into the PC/104 form-factor for faster data transfer. EBX (Embedded Board eXpandable) defines a 5.75" x 8" form factor large enough to implement a powerful single-board computer. It supports PC/104 expansion.
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| |
PCI
|
|
Peripheral component interconnect (PCI) is a local bus system designed for high-end computer systems. PCI buses transfer 32 or 64 bits of data at a clock speed of 33 MHz. They also support 3 to 5 critical peripherals, which are either integrated directly onto the motherboard or added via expansion cards. PCI buses fully support cards that were developed for standard I/O buses.
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| |
PCMCIA (PC Card)
|
|
PCMCIA devices (PC Cards) are credit-card-sized peripherals predominantly used in laptop computers. The PCMCIA adapter takes the place of a COM port on a standard bus. The card is plugged into a 68-pin host socket that is connected either to the motherboard or an expansion bus. An adapter then translates the PCMCIA signals into signals usable by the computer's bus.
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| |
PXI Bus
|
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PCI extensions for instrumentation (PXI) is a superset of CompactPCI that adds timing and triggering functions, imposes requirements for documenting environmental tests, and establishes a standard Windows®-based software framework. Windows is a registered trademark of the Microsoft Corporation.
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| |
PMC Bus
|
|
PMC is a form factor, not a bus. It is electrically equivalent to the PCI bus, but has a different shape and bus connectors. PMC is designed for rugged applications and provides a secure mounting platform for VME mezzanine boards.
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| |
STD Bus
|
|
STD is often called the "blue collar bus" because of its rugged design and use in industrial and process control applications. There are three STD bus types: STD Z80, STD80, and STD 32. The STD Z80 bus and the STD 80 bus use a 56-pin backplane with 0.125" contact spacing for card interconnection. The STD 32 Bus provides a 32-bit wide data bus to support 8, 16, and 32-bit data transfers. Dynamic bus sizing, which varies the data path size depending on the requirements of the peripheral card being addressed, gives the STD 32 bus added flexibility.
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| |
Sbus
|
|
SBus was developed by Sun Microsystems for use with SPARC®-based computers. SPARC, an acronym for scalable processor architecture, and is a registered trademark of SPARC International, Inc. Though standardized as IEEE 1496, the SBus is no longer used. It has been replaced by peripheral component interconnect (PCI).
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| |
USB
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Universal serial bus (USB) is a 4-wire, 12-Mbps serial bus for low-to-medium speed peripheral device connections to personal computers (PC), including keyboards, mice, modems, printers, joysticks, audio functions, monitor controls, etc. The USB design is standardized by the USB Implementers Forum (USBIF), an organization that includes leading companies from the computer and electronics industries. The current USB specification is USB 2.0, which supports data transfer rates of up to 480 Mbps.
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VMEbus
|
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VMEbus is based on the VME standard, which defines mechanical specifications such as board dimensions, connector specifications and enclosure characteristics, as well as the electronic specifications for sub-bus structures, signal functions, timing, signal voltage levels, and master/slave configurations. The VMEbus uses 3U and 6U Eurocards, rugged circuit boards that provide a 96-pin plug instead of an edge connector for durability. Several VMEbus varieties are available.
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| |
VXI / MXI Bus
|
|
VME extensions for instrumentation (VXI) are electrical and mechanical standards used mainly with automatic test equipment (ATE). VXI allows equipment from different vendors to work together in a common control and packaging environment.
Multisystem extension interface (MXI) is an 8MB/s bus for connection of up to 8 digital devices and expansion boards.
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| |
Other
|
|
Unlisted, specialized, or proprietary configuration.
|
| |
Search Logic:
|
|
All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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|
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|
| |
DC Voltage Input?
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|
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
DC Current Input?
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|
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
AC Voltage Input?
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|
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
AC Current Input?
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|
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Frequency Input?
|
|
Input for varying frequency, pulse, or other specialized waveform.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Charge Input?
|
|
Charge is the output of a piezoelectric device. A charge signal typically requires filtering and amplification.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
|
|
| |
Accelerometer Input?
|
|
Input specifically for an accelerometer, such as a piezoelectric or current-fed sensor.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Thermocouple Input?
|
|
Input for a thermocouple or thermocouple series.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Thermistor Input?
|
|
Input for thermistors and potentiometers handle variable resistance as a function of the process being measured.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
RTD Input?
|
|
Input designed for a resistance temperature detector.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Strain Gauge / Bridge?
|
|
Input designed for a Wheatstone bridge, in full, half, or quarter bridge configurations. Strain gauges are sensors which commonly utilize Wheatstone bridges.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
LVDT / RVDT Input?
|
|
Input for a Linear (LVDT) or Rotary (RVDT) Variable Differential Transformer.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
|
|
| |
Encoder Input?
|
|
Input for an encoder signal such as binary, gray, or BCD.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Counter / Tachometer Input?
|
|
Input from counters or tachometers are typically one signal per cycle counts.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Timer / Clock Input?
|
|
Input for any type of time signal.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Relay / Switch Input?
|
|
Input for a discrete, on/off signal from an exterior device.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Other Input?
|
|
Unlisted or specialized input.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
|
|
| |
Voltage Excitation Supply?
|
|
Device has a voltage output that is meant to power or activate the sensor whose signal the device is receiving.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Current Excitation Supply?
|
|
Device has a current output that is meant to power or activate the sensor whose signal the device is receiving.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
|
|
| |
Voltage Output?
|
|
Variable voltage output such as 0-10V, ±5V, etc.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Current Output?
|
|
Variable current level output such as 0-20mA, 4-20 mA current loop, etc.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Frequency Output?
|
|
Output is a frequency or pulse signals such as AM, FM, or PWM monitoring or control.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Timer / Counter Output?
|
|
Output is a counting or timing of measured events.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Relay Output?
|
|
Switch type output; contacts are open or closed depending on the state of one or more of the inputs.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Resistance / Potentiometer Output?
|
|
Output is a variable resistance such as a potentiometer.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Other Output?
|
|
Unlisted or specialized output.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
|
|
| |
Application
|
|
|
| |
Your choices are...
|
|
|
| |
General Lab & Industrial
|
|
General laboratory and industrial data acquisition systems. Special hardening against weather, shock, extreme heat, and other unusual conditions not necessary.
|
| |
Environmental
|
|
Designed for use in environmental applications such as groundwater monitoring or pollution measurement.
|
| |
Vehicular
|
|
Applications for vehicular motion, including provisions for factors such as high speed, shock, etc.
|
| |
Marine
|
|
Designed for use in water or salt water applications.
|
| |
Aerospace / Military
|
|
Designed for use in aviation, aerospace or other military or defense applications, including associated technical or military standards.
|
| |
Seismic / Geotechnical
|
|
Designed for use in seismic applications such as earthquake or volcano research, or industries such as mining.
|
| |
Weather / Meteorology
|
|
Designed to handle weather or atmospheric data; may include weatherproofing.
|
| |
Medical / Biomedical
|
|
Designed for use in medical, biomedical, pharmaceutical, or surgical applications.
|
| |
Search Logic:
|
|
All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
|
|
|
|
| |
Application Software Included?
|
|
Included compatible software for control or for monitoring data acquisition or signal conditioning from a supervisory or host computer.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
|
|
| |
Networkable System?
|
|
Device is designed to communicate with or be a node of a digital network.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Network Options:
|
|
|
| |
Your choices are...
|
|
|
| |
Beckhoff I/O
|
|
A communications system that couples open fieldbus protocols to Beckhoff's Bus Terminal I/O. This allows connectivity to a large variety of devices on the Bus Terminal (K-bus).
|
| |
IEEE 1394 (Firewire®)
|
|
The IEEE 1394 standard is a scalable, flexible, digital interface designed by Apple Computer, Inc., to integrate the worlds of consumer electronics and personal computers. The IEEE 1394 standard defines both a back plane physical layer and point-to-point cable-connected virtual bus implementations. FireWire, Apple's implementation of IEEE 1394, is a fast peripheral standard for use with multimedia peripherals such as video camcorders and other high-speed devices like the latest hard disk drives and printers.
|
| |
Other
|
|
Any unlisted network system; may include proprietary networks.
|
| |
Ethernet
|
|
A standard method of connecting computers to a local area network (LAN) using coaxial cable.
|
| |
Gigabit Ethernet
|
|
Gigabit Ethernet is a high-speed Ethernet standard from the IEEE 802.3z Gigabit Task Force.
|
| |
CANbus
|
|
CANbus is a high-speed serial data network engineered to exist in harsh electrical environments.
|
| |
DeviceNet
|
|
DeviceNet is a network designed to connect industrial devices such as limit switches, photoelectric cells, valve manifolds, motor starters, drives, and operator displays to PLCs and PCs. The network eliminates hard wiring while providing device-level diagnostics.
|
| |
SDS
|
|
Smart Distributed System (SDS) is an advanced bus system for intelligent sensors and actuators using CAN-based technology.
|
| |
Foundation Fieldbus
|
|
A bi-directional communications protocol used for communications among field instrumentation and control systems.
|
| |
Profibus
|
|
PROFIBUS is a vendor-independent, open field bus standard used in a wide variety of manufacturing and process automation applications.
|
| |
SERCOS
|
|
(Serial Real-time Communications System) is an open controller-to-intelligent digital drive interface specification, designed for high-speed serial communication of standardized closed-loop data in real-time over a noise-immune, fiber-optic cable.
|
| |
Search Logic:
|
|
All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
|
|
|
|
| |
Analog-to-Digital Conversion Type
|
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|
| |
Your choices are...
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|
| |
Flash
|
|
A flash ADC applies the input in parallel to many fast comparators whose thresholds are equally spaced throughout the desired input voltage range, typically 1V. At any moment, all the comparators that have thresholds below the input voltage are on, and the rest are off.
A series of latching AND gates connect between adjacent comparators so that only the gate at the boundary between the on and off comparators is active. The input clock latches the AND gate outputs, and a pipelined circuit converts this one-out-of-N input to a binary output.
Flash ADCs need 2N comparators to generate an N-bit output, and thus they tend to have no more than 6 to 10 output bits. Because the input has to drive all the comparators in parallel, the input capacitance is a major limitation to the bandwidth. The sampling bit synchronizer can often use this input capacitance as one element of the noise filter.
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| |
Half-flash
|
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An ADC that determines its output code by digitally combining the results of two sequentially performed lower-resolution flash conversions.
|
| |
Integrator
|
|
An ADC whose output code represents the average value of the input voltage over a given time interval.
|
| |
Delta Sigma (Modulator)
|
|
A high-accuracy circuit that samples at a higher rate and lower resolution than is needed and (by means of feedback loops) pushes the quantization noise above the frequency range of interest. This out-of-band noise is typically removed by digital filters.
|
| |
Successive Approximation
|
|
Successive Approximation ADC sequentially compares a series of binary-weighted values with an analog input to produce an output digital word in n steps, where n is the bit resolution of the ADC.
|
| |
Voltage-to-Frequency
|
|
Voltage-to-frequency ADCs convert an input voltage to an output pulse train with a frequency proportional to the input voltage. Output frequency is determined by counting pulses over a fixed time interval and the voltage is inferred from the known relationship.
Voltage-to-frequency conversion has a high degree of noise rejection, because the input signal is effectively integrated over the counting interval. Voltage-to-frequency conversion is commonly used to convert slow and often noisy signals. It is also useful for remote sensing applications in noisy environments. The input voltage is converted to a frequency at the remote location and the digital pulse train is transmitted over a pair of wires to the counter. This eliminates the noise that can be introduced in the transmission of an analog signal over a long distance.
|
| |
Other
|
|
Any specialized or unlisted method of analog-to-digital conversion.
|
| |
Search Logic:
|
|
All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
|
|
|
|
| |
Integral Filter?
|
|
A filter will allow certain signal frequencies to pass while attenuating others. Filters can operate on signal phase also.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Filter Architecture:
|
|
|
| |
Your choices are...
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|
| |
Analog (RC)
|
|
An analog filter is designed with resistors and capacitors. It is used for analog signals only and is often used in low-noise requirement applications.
|
| |
Digital (FIR, IIR)
|
|
A digital filter is designed with solid state components and is used for digital signals and quantized signals from a sample-and-hold amplifier. This category includes Finite Impulse Response (FIR) and Infinite Impulse Response (IIR) filters. Digital filtering can approach ideal bandpass characteristics.
|
| |
Search Logic:
|
|
All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
|
|
| |
Number of Poles:
|
|
Poles are a measure of complexity of the filter circuitry. In general, more poles will provide a steeper roll-off for a given filter type.
|
| |
Your choices are...
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| |
2
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4
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| |
6
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| |
8
|
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| |
Other
|
|
|
| |
Search Logic:
|
|
Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
|
|
| |
Filter Function:
|
|
|
| |
Your choices are...
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|
| |
Low Pass
|
|
Low pass filters block or attenuate signals at frequencies above the specified cutoff frequency.
|
| |
High Pass
|
|
High pass filters block or attenuate signals at frequencies below the specified cutoff frequency.
|
| |
Band Pass
|
|
Band pass filters block or attenuate signals at frequencies outside of the specified low pass and high pass cutoff frequencies. This is frequently done by combining or "cascading" low-pass and high-pass filters.
|
| |
Band Stop
|
|
Band stop filters block a portion of the frequency spectrum, allowing lower and higher frequencies to pass.
|
| |
All Pass
|
|
All-pass filters allow all frequencies to pass; they can be used to introduce desired phase shifts in signals.
|
| |
Other
|
|
Unlisted or specialized form of filter.
|
| |
Search Logic:
|
|
All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
|
|
| |
Filter Type:
|
|
|
| |
Your choices are...
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|
| |
Bessel
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Bessel filters have a relatively flat passband and slow roll-off. The stopband is fairly monotonic (ripple-free). Among the filters with the most complex circuitry.
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Butterworth
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Butterworth filters provide a very flat response. There is almost no attenuation in the passband. The roll-off rate is somewhat slower than other filters.
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Cauer (Elliptic)
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Cauer or elliptic filters provide the fastest roll-off for a given order (number of poles). The pass band and stop band will typically have ripples.
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Chebyshev
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Chebyshev filters provide a very fast roll-off, but at the expense of a rippled pass band.
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Linear Phase
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Linear phase response filters preserve the phase characteristics of a signal by time-delaying the signal components equally.
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Other
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Low Pass Cutoff Frequency:
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Nominal frequency below which input signal is passed and above which the signal is blocked.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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High Pass Cutoff Frequency:
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Nominal frequency above which the input signal is passed and below which the signal is blocked.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Anti-aliasing Filter?
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Aliasing is the misrepresentation of a signal that comes from an improperly slow sampling of a signal. An anti-aliasing filter generally has a sharper cut-off than a normal low-pass filter to reduce this misrepresentation due to the influence of frequencies higher than desired. It is specified according to the sampling rate of the system and there should be one filter per input signal.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Programmable Filter?
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Filter parameters such as cutoff frequencies may be interactively programmed by user.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Integral Amplifier?
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Amplifiers multiply a signal to the matching scale of the input device. Amplifier gains, or multiplication factors, may be greater than one or fractional for signal reduction.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Programmable Gain?
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Amplifier gain may be adjusted according to the application needs. Adjustment may be from a local interface (such as a front panel) or from a computer interface.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Bandwidth:
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Bandwidth is the difference between the high and low limits of the frequency response, typically defined by a variation from a nominal value by a stated value such as 3 dB.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Operating Temperature:
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Full required range of ambient operating temperature.
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Search Logic:
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User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Vibration Rating:
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Maximum vibration that the device can withstand and still meet performance specifications.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Shock Rating:
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Maximum shock that the device can withstand and still meet performance specifications.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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