GENERAL DESCRIPTION
The AD7738 is a high precision, high throughput analog front end. True 16-bit p-p resolution is achievable with a total conversion time of 117 µs (8.5 kHz channel switching), making it ideally suitable for high resolution multiplexing applications.

FEATURES
   High Resolution ADC
      24 Bits No Missing Codes
      ±0.0015% Nonlinearity
   Optimized for Fast Channel Switching
      18-Bits p-p Resolution (21 Bits Effective) at 500 Hz
      16-Bits p-p Resolution (19 Bits Effective) at 8.5 kHz
      15-Bits p-p Resolution (18 Bits Effective) at 15 kHz
      On-Chip Per Channel System Calibration
   Configurable Inputs
      8 Single-Ended or 4 Fully Differential
   Input Ranges
      +625 mV, +1.25 V, +2.5 V, ±625 mV, ±1.25 V, ±2.5 V
   3-Wire Serial Interface
      SPI™, QSPI™, MICROWIRE™ and DSP Compatible
      Schmitt Trigger on Logic Inputs
   Single-Supply Operation
      5 V Analog Supply
      3 V or 5 V Digital Supply
   Package: 28-Lead TSSOP

APPLICATIONS
   PLCs/DCS
   Multiplexing Applications
   Process Control
   Industrial Instrumentation