GENERAL DESCRIPTION

The AD7933/AD7934 are 10-bit and 12-bit, high speed, low power, successive approximation (SAR) analog-to-digital converters (ADCs). The parts operate from a single 2.7 V to 5.25 V power supply and feature throughput rates up to 1.5 MSPS. The parts contain a low noise, wide bandwidth, differential track and-hold amplifier that handles input frequencies up to 50 MHz.

FEATURES

Throughput rate: 1.5 MSPS

Specified for VDDof 2.7 V to 5.25 V

Low power

6 mW maximum at 1.5 MSPS with 3 V supplies

13.5 mW maximum at 1.5 MSPS with 5 V supplies

4 analog input channels with a sequencer

Software configurable analog inputs

4-channel single-ended inputs

2-channel fully differential inputs

2-channel pseudo differential inputs

Accurate on-chip 2.5 V reference

±0.2 maximum @ 25°C, 25 ppm/°C maximum (AD7934)

70 dB SINAD at 50 kHz input frequency

No pipeline delays

High speed parallel interface—word/byte modes

Full shutdown mode: 2 μA maximum

28-lead TSSOP package