AD73311ARSZ-REEL

The AD73311ARSZ-REEL from Analog Devices is a versatile, low-power CMOS Analog Front End (AFE) designed for general-purpose applications, particularly in speech and telephony processing. This component integrates a 16-bit Analog-to-Digital Converter (ADC) and a 16-bit Digital-to-Analog Converter (DAC), each providing a signal-to-noise ratio of 70 dB over the voiceband.

Key electrical specifications include a maximum sample rate of 64 kS/s, an ADC SNR of 75 dB, and a DAC SNR of 70 dB. The device features programmable input and output gains, with the ADC gain programmable up to 38 dB and the DAC gain up to 21 dB. It operates from a single supply voltage ranging from 2.7V to 5.5V and consumes a maximum of 50 mW of power at 2.7V. The low group delay characteristic, 25 µs for the ADC channel and 50 µs for the DAC channel, makes it suitable for active control applications.

Packaged in a 20-lead SSOP, the AD73311ARSZ-REEL is designed for surface mounting. Its flexible serial port allows for easy interfacing with DSP engines, supporting single or cascaded device configurations. The on-chip reference voltage simplifies single-supply operation. Applications include general-purpose analog I/O, speech processing, cordless and personal communications, telephony, and data communications.