The AD73322 is a low-cost, low-power CMOS general-purpose dual analog front end. It features two 16-bit A/D converters, two 16-bit D/A converters, programmable input/output sample rates, 78 dB ADC SNR, 77 dB DAC SNR, and more.
The AD73322 is a dual‑channel analog front‑end designed for general‑purpose applications such as speech processing, telephony and data communications. It integrates two 16‑bit A/D converters and two 16‑bit D/A converters, provides 78 dB ADC SNR and 77 dB DAC SNR, and supports programmable input/output gain, flexible serial port connectivity and sample rates of 8 kHz to 64 kHz.
The device operates from a single supply of 2.7 V to 5.5 V, consumes about 73 mW at 3.0 V, and is offered in 28‑lead SOIC and 44‑lead LQFP packages. Typical applications include speech enhancement, active control of sound and vibration, and wireless local‑loop communications.
| ADC Resolution | 16‑bit |
|---|---|
| DAC Resolution | 16‑bit |
| Maximum Sample Rate | 64 kS/s |
| Supply Voltage Range | 2.7 V to 5.5 V (single supply) |
| Typical Power Consumption | 73 mW at 3.0 V |
| ADC Signal‑to‑Noise Ratio | 78 dB |
| DAC Signal‑to‑Noise Ratio | 77 dB |
| Package Options | 28‑lead SOIC, 44‑lead LQFP |
The AD73322 operates from a single supply voltage between 2.7 V and 5.5 V.
The ADC provides a signal‑to‑noise ratio of 78 dB, while the DAC provides 77 dB SNR.
The device is offered in a 28‑lead wide‑body SOIC and a 44‑lead thin‑quad LQFP package.