GENERAL DESCRIPTION

The AD73661 is a dual, 12-bit, high speed, low power, successive approximation ADC that features throughput rates up to 1 MSPS. The device contains two ADCs, each preceded by a 2- channel multiplexer, and a low noise, wide bandwidth track and-hold amplifier that can handle input frequencies in excess of 10 MHz.

The AD7366 is fabricated on Analog Devices’ Industrial CMOS process, iCMOS, a technology platform combining the advantages of low and high voltage CMOS, bipolar and high voltage DMOS processes. The process allows the AD7366 to accept high voltage bipolar signals in addition to reducing power consumption and package size. The AD7366 can accept true bipolar analog input signals in the ±10 V range, ±5 V range and 0 to 10 V range.

The AD7366 has an on-chip 2.5 V reference that can be overdriven if an external reference is preferred. The AD7366 is available in a 24-lead TSSOP package.

FEATURES

Dual 12-bit, 2-channel ADC

True Bipolar Analog Inputs

Programmable Input Ranges

±10, ±5, 0 to 10 V

Throughput rate: 1 MSPS

Simultaneous conversion with read in less than 1μs

Specified for VCC of 5 V±5

Low current consumption: 5.65 mA max

Wide input bandwidth

70 dB SNR at 50 kHz input frequency

On-chip reference: 2.5 V

–40°C to +85°C operation

High speed serial interface

SPI?/QSPI?/MICROWIRE?/DSP compatible

iCMOSTM Process Technology

24-lead TSSOP package

For 14 bit version see AD7367