GENERAL DESCRIPTION
The AD8555 is a zero-drift, sensor signal amplifier with digitally programmable gain and output offset. Designed to easily and accurately convert variable pressure sensor and strain bridge outputs to a well-defined output voltage range, the AD8555 also accurately amplifies many other differential or single-ended sensor outputs. The AD8555 uses the ADI patented low noise auto-zero and DigiTrim® technologies to create an incredibly accurate and flexible signal processing solution in a very compact footprint.

FEATURES
   Very low offset voltage: 10 µV maximum over temperature
   Very low input offset voltage drift: 60 nV/°C maximum
   High CMRR: 96 dB minimum
   Digitally programmable gain and output offset voltage
   Single-wire serial interface
   Open and short wire fault detection
   Low-pass filtering
   Stable with any capacitive load
   Externally programmable output clamp voltage for driving
      low voltage ADCs
   LFCSP-16 and SOIC-8 packages
   2.7 V to 5.5 V operation
   −40°C to +125°C operation

APPLICATIONS
   Pressure and position sensors
   Thermocouple amplifiers
   Industrial weigh scales
   Precision current sensing
   Strain gages