AD73322AR

The AD73322AR from Analog Devices is a low-cost, low-power CMOS dual analog front-end processor designed for general-purpose applications, including speech and telephony. It integrates two 16-bit Analog-to-Digital Converters (ADCs) and two 16-bit Digital-to-Analog Converters (DACs), each providing 77 dB signal-to-noise ratio over a voiceband signal bandwidth.

Key features include programmable input/output sample rates up to 64 kS/s, a maximum sample rate of 64 kS/s, and low group delay characteristics. The device offers programmable input/output gain and a flexible serial port that allows for cascading up to four dual codecs. It operates from a single supply voltage ranging from 2.7V to 5.5V, consuming typically 73 mW of power at 3.0V.

The AD73322AR is suitable for applications such as general-purpose analog I/O, speech processing, cordless and personal communications, and data communications. It is available in a 28-lead SOIC package, designed for surface mount.

This device is particularly useful for applications requiring impedance matching or scaling when interfacing with Subscriber Line Interface Circuits (SLICs). Its low group delay makes it suitable for active control applications.