GENERAL DESCRIPTION

The AD7934-6 is a 12-bit, high speed, low power, successive approximation (SAR) analog-to-digital converter (ADC). The part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 625 kSPS. The part contains a low noise, wide bandwidth, differential track-and-hold amplifier that handles input frequencies up to 50 MHz.

FEATURES

Throughput rate: 625 kSPS

Specified for VDD of 2.7 V to 5.25 V

Power consumption

3.6 mW maximum at 625 kSPS with 3 V supplies

7.5 mW maximum at 625 kSPS 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

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