GENERAL DESCRIPTION
The AD7171 is a very low power 16-bit analog-to-digital converter (ADC). It contains a precision 16-bit sigma-delta (Σ-Δ) ADC and an on-chip oscillator. Consuming only 135 μA, the AD7171 is particularly suitable for portable or battery operated products where very low power is a requirement. The AD7171 also has a power-down mode in which the device consumes 5 μA, thus increasing the battery life of the product.

FEATURES
   Output data rate: 125 Hz
   Pin-programmable power-down and reset
   Status function
   Internal clock oscillator
   Current: 135 μA
   Power supply: 2.7 V to 5.25 V
   –40°C to +105°C temperature range
   Package: 10-lead 3 mm x 3 mm LFCSP

INTERFACE
   2-wire serial (read-only device)
   SPI compatible
   Schmitt trigger on SCLK

APPLICATIONS
   Weigh scales
   Pressure measurement
   Industrial process control
   Portable instrumentation