GENERAL DESCRIPTION

The AD7869 is a complete 14-bit I/O system containing a DAC and an ADC. The ADC is a successive approximation type with a track-and-hold amplifier, having a combined throughput rate of 83 kHz. The DAC has an output buffer amplifier with a settling time of 4 µs to 14 bits. Temperature compensated 3 V buried Zener references provide precision references for the DAC and ADC.

FEATURES

Complete 14-Bit l/O System, Comprising

14-Bit ADC with Track/Hold Amplifier

83 kHz Throughput Rate

14-Bit DAC with Output Amplifier

3.5 μs Settling Time

On-Chip Voltage Reference

Operates from ±5 V Supplies

Low Power—130 mW typ

Small 0.3 Wide DIP

APPLICATIONS

Digital Signal Processing

Speech Recognition and Synthesis

Spectrum Analysis

High Speed Modems

DSP Servo Control