This document describes a 14-bit, 80 MSPS/155 MSPS, 1.8V serial output analog-to-digital converter (ADC) with features including JESD204A coded serial digital outputs, high SNR and SFDR, low power consumption, programmable internal ADC voltage reference, etc.
The AD9641 is a 14‑bit ADC offering 80 MSPS or 155 MSPS sampling rates and a JESD204A high‑speed serial interface. It operates from a single 1.8 V supply, provides flexible input ranges, and includes built‑in self‑test and power‑down modes for energy‑saving designs.
The device is supplied in a 32‑lead LFCSP package, rated for industrial temperature (‑40 °C to +85 °C). Detailed specifications cover DC/AC performance, digital I/O, timing, absolute maximum ratings, and layout guidelines for optimal thermal and signal integrity.
| Maximum Sample Rate | 155 MSPS |
|---|---|
| Supply Voltage (AVDD/DRVDD) | 1.8 V |
| Power Consumption (80 MSPS) | 238 mW |
| Power Consumption (155 MSPS) | 313 mW |
| Signal‑to‑Noise Ratio (70 MHz, 80 MSPS) | 73.7 dBFS |
| Spurious‑Free Dynamic Range (70 MHz, 80 MSPS) | 94 dBc |
| Power‑down Power | 7 – 18 mW |
| Operating Temperature Range | ‑40 °C to +85 °C |
The AD9641 can sample up to 155 MSPS.
Both analog (AVDD) and digital (DRVDD) supplies are 1.8 V.
The SNR is 73.7 dBFS.
The device is rated from –40 °C to +85 °C.