The AD73311L is a 16-bit A/D converter and 16-bit D/A converter produced by Analog Devices. The chip uses a low-cost, low-power CMOS process and has programmable input/output sampling rate, 76dB ADC SNR, 77dB DAC SNR, 64 kS/s maximum sampling rate, -90dB crosstalk, low group delay (25 ms Typ per ADC Channel, 50 ms Typ per DAC Channel), programmable input/output gain, flexible serial port, single (+3 V) supply operation, 33 mW maximum power consumption, 2.7 V On-Chip Reference, 20-Lead SOIC/SSOP/TSSOP Packages and other features.
The AD73311L is a low‑cost, low‑power CMOS analog front‑end featuring 16‑bit A/D and D/A conversion, programmable gain, and a flexible serial SPORT interface that can cascade up to eight devices. It is targeted at general‑purpose analog I/O, speech processing, and telephony applications, offering up to 64 kS/s sample rate and low group delay.
The document lists detailed electrical specifications, absolute maximum ratings, pin‑out descriptions, timing characteristics, and mixed‑mode operation tables. It also includes functional block diagrams, ordering information for 20‑lead SOIC/SSOP/TSSOP packages, and an appendix with DAC timing control examples.
| ADC Resolution | 16‑bit |
|---|---|
| DAC Resolution | 16‑bit |
| Maximum Sample Rate | 64 kS/s |
| Power Consumption (2.7 V) | 33 mW |
| Supply Voltage Range | 2.7 V to 3.3 V |
| ADC SNR | 76 dB |
The ADC maximum input range is 1.578 Vpp measured differentially.
Both analog (AVDD) and digital (DVDD) supplies operate from 2.7 V to 3.3 V.
The AD73311L is available in 20‑lead SOIC, SSOP, and TSSOP packages.