The AD6644 is a high performance, high precision, monolithic 14-bit analog-to-digital converter (ADC) that provides a complete conversion solution.
The AD6644 is a high‑speed, high‑performance 14‑bit ADC that integrates track‑and‑hold and reference functions on‑chip, providing a complete conversion solution. It offers a guaranteed 65 MSPS sample rate, 100 dB two‑tone SFDR, and operates from a 5 V analog supply and 3.3 V digital supply.
Designed for multichannel, multimode receivers and other communications instrumentation, the device is packaged in a 52‑lead low‑profile LQFP and operates over a temperature range of –25 °C to +85 °C. The datasheet includes detailed specifications, pin configurations, timing diagrams, and ordering information.
| Resolution | 14 bits |
|---|---|
| Maximum Sample Rate | 65 MSPS (guaranteed) |
| Analog Supply Voltage (AVCC) | 5 V |
| Digital Supply Voltage (DVCC) | 3.3 V |
| Spurious‑Free Dynamic Range (SFDR) | 100 dB |
The AD6644 guarantees a maximum conversion rate of 65 MSPS.
The analog supply (AVCC) is 5 V and the digital supply (DVCC) is 3.3 V.