GENERAL DESCRIPTION

The AD72651 is a dual, 12-bit, high speed, low power, successive approximation ADC that operates from a single 2.7 V to 5.25 V power supply and features throughput rates of up to 1 MSPS. The device contains two ADCs, each preceded by a 3-channel multiplexer, and a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 30 MHz.

FEATURES

Dual 12-bit, 3-channel ADC

Throughput rate: 1 MSPS

Specified for VDD of 2.7 V to 5.25 V

Power consumption

7 mW at 1 MSPS with 3 V supplies

17 mW at 1 MSPS with 5 V supplies

Pin-configurable analog inputs

12-channel single-ended inputs

6-channel fully differential inputs

6-channel pseudo differential inputs

70 dB SINAD at 50 kHz input frequency

Accurate on-chip reference: 2.5 V

±0.2 maximum @ 25°C, 20 ppm/°C maximum

Dual conversion with read 875 ns, 16 MHz SCLK

High speed serial interface

SPI?-/QSPI?-/MICROWIRE?-/DSP-compatible

?40°C to +125°C operation

Shutdown mode: 1 μA maximum

32-lead LFCSP and 32-lead TQFP

2 MSPS version, AD7266