AD9642 is a 14-bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V analog-to-digital converter (ADC). It features excellent dynamic range, distortion-free output, and low power consumption, making it an ideal choice for communications applications.
The AD9642 is a 14‑bit analog‑to‑digital converter (ADC) designed for communications applications, offering sampling speeds up to 250 MSPS and a flexible 1.75 V p‑p full‑scale input range. It operates from a single 1.8 V analog supply (AVDD) and a separate 1.8 V digital output driver supply (DRVDD), providing LVDS outputs and a 3‑wire SPI‑compatible serial interface for configuration.
Key features include a multistage differential pipelined architecture, integrated voltage reference, duty‑cycle stabilizer, low power consumption (311‑387 mW at full speed), and extensive digital and timing specifications. The datasheet provides detailed pin configurations, electrical characteristics, timing diagrams, memory map registers, and design guidelines for optimal system integration.
| Maximum Sample Rate | 250 MSPS |
|---|---|
| Supply Voltage (AVDD/DRVDD) | 1.8 V |
| Power Consumption (full power) | 311‑387 mW |
| Input Span | 1.75 V p‑p full‑scale |
| Signal‑to‑Noise Ratio (SNR) | 71.0 dBFS at 185 MHz |
The AD9642 can sample at up to 250 MSPS.
It requires a 1.8 V analog supply (AVDD) and a 1.8 V digital output driver supply (DRVDD).
Full‑power consumption ranges from about 311 mW to 387 mW depending on the speed grade.