See Product Details

Each input has a separate sample-and-hold stage which halts the track signal for the subsequent sequential digitization. Various 2- and 3-track Nonius scale computations (after Vernier) can be configured for the calculation of high resolution angle positions; these computations permit angle resolutions of up to 25 bits.

The absolute angle position is output via the serial BiSS Interface with clock rates of up to 10 Mbit/s. The RS422 transceiver required to this end is integrated on the chip.

Applications

• Optical and magnetic position sensors
• Singleturn and multiturn absolute encoders
• Linear scales for absolute position

Features

• 3-Ch. simultaneous sampling 13 bit sine-to-digital conversion
• 2- and 3-track Nonius scale computation (after Vernier)
• Reduced conversion times due to internal flash counter
• Synchronization of multiturn sensors via on-chip BiSS/SSI master
• Differential PGA inputs with selectable input resistance
• Signal conditioning for offset, amplitude and phase
• Short-circuit-proof RS422 drive to 10 Mbit/s for BiSS data line
• SSI data output formats selectable
• Short-circuit-proof sine/cosine output drivers (1 Vpp to 100 Ohm)
• Signal level controllers for direct supply of encoder LEDs and MR bridges
• Configurable system monitoring and alarm indication
• Position preset function
• Device setup from serial EEPROM and BiSS
• Full reverse polarity protection including the sub-system
• Immune against faulty output or supply connections