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The differential output signals can be calibrated to 1 Vpp or to 2 Vpp, alternatively.

The internal or an external temperature sensor linked to the chip can influence the gain and offset correction by arbitrary temperature-dependent compensation parameters sourced from a lookup table.

Applications

• Programmable general purpose sensor interface
• Optical position sensors
• Magnetic position sensors
• Incremental position sensors
• Linear scales

Features

• Fully differential 3-channel signal conditioning
• Differential/single-ended PGA inputs
• Overall gain of -3 to 57 dB, adjustable in steps of 0.08 dB
• Output referred offset range of ±1.2 V, adjustable in steps of 2 mV
• Signal bandwidth to 1 MHz and in/out latency below 1 µs
• Selectable automatic gain and offset control for encoder applications
• On-chip or off-chip temperature sensing
• Temperature drift compensation for gain and offset via programmable look-up-tables
• Short-circuit-proof 1 Vpp / 2 Vpp output drivers to 100 Ohm
• I²C interface to restore device setup from serial E²PROM
• Bidirectional 1-wire interface for direct RAM and E²PROM access
• Optical setup link via 1-wire interface operating a photo receiver
• Single 3.0 V to 5.5 V supply
• Extended operating temperature range of –50 to +150 °C