
Analog Devices
GENERAL DESCRIPTION
The AD7933/AD7934 are 12-bit and 10-bit, high speed, low power, successive approximation (SAR) ADCs. The parts operate from a single 2.7 V to 5.25 V power supply and feature throughput rates to 1.5 MSPS. The parts contain a low noise, wide bandwidth, differential track-and-hold amplifier that can handle input frequencies up to 20 MHz.
FEATURES
Fast throughput rate: 1.5 MSPS
Specified for VDD of 2.7 V to 5.25 V
Low power
8 mW max at 1.5 MSPS with 3 V supplies
16 mW max 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
Wide input bandwidth
70 dB SNR at 50 kHz input frequency
No pipeline delays
High speed parallel interface—word/byte modes
Full shutdown mode: 1 µA max
28 lead TSSOP package