|
|
| |
Analog Input Channels:
|
|
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 number of differential channels are available as single-ended inputs.
|
| |
Search Logic:
|
|
All matching products will have a value greater than or equal to the specified value.
|
|
| |
Differential Channels
|
|
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.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Gain Range:
|
|
Gain is the factor by which the input signal is multiplied. Gains are frequently greater than unity, but may be fractional when a reduction (attenuation) of signal amplitude is desired.
|
| |
Search Logic:
|
|
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.
|
|
| |
Maximum Output:
|
|
This is the limit of output voltage.
|
| |
Search Logic:
|
|
All matching products will have a value greater than or equal to the specified value.
|
|
| |
Input Impedance:
|
|
Impedance (Z) is the resistance to alternating signal flow and is a result of the resistance, capacitance, and the inductance of the circuitry of a device. Input impedance of an amplifier is the equivalent impedance that the signal input sees. Input impedance is typically specified to be much greater than the impedance of a sensor whose signal it is amplifying. Some applications, such as in the power and acoustic fields, require impedance matching of devices.
|
| |
Search Logic:
|
|
All matching products will have a value greater than or equal to the specified value.
|
|
| |
Common Mode Rejection Ratio:
|
|
The ability of an amplifier to obtain the difference between two inputs while rejecting the signal common to both is defined by the common mode rejection ratio (CMRR) and the common mode range. The simplest mathematical definition of CMRR is:
CMRR = 20 log(differential gain / common mode gain)
|
| |
Search Logic:
|
|
All matching products will have a value greater than or equal to the specified value.
|
|
