GENERAL DESCRIPTION

The AD7327 1 is an 8-channel, 12-bit plus sign successive approximation ADC designed on the iCMOS (industrial CMOS) process. iCMOS is a process combining high voltage silicon with submicron CMOS and complementary bipolar technologies. It enables the development of a wide range of high performance analog ICs capable of 33 V operation in a footprint that no previous generation of high voltage parts could achieve. Unlike analog ICs using conventional CMOS processes, iCMOS components can accept bipolar input signals while providing increased performance, dramatically reduced power consumption, and reduced package size.

FEATURES

  12-bit plus sign SAR ADC

  True bipolar input ranges

  Software-selectable input ranges ±10 V, ±5 V, ±2.5 V, 0 V to +10 V

  500 kSPS throughput rate

  Eight analog input channels with channel sequencer

  Single-ended, true differential, and pseudo differential analog input capability

  High analog input impedance

  Low power: 17 mW

  Temperature indicator

  Full power signal bandwidth: 22 MHz

  Internal 2.5 V reference

  High speed serial interface

  Power-down modes

  20-lead TSSOP package

  iCMOS™ process technology