The AD6644 is a high speed, high performance, monolithic 14-bit analog-to-digital converter (ADC). All necessary functions, including track-and-hold (TH) and reference, are included on-chip to provide a complete conversion solution. The AD6644 provides CMOS-compatible digital output format and directly transfers conversion data into memory or digital circuits.
The AD6644 is a high‑speed, 14‑bit ADC designed for multichannel, multimode receivers and other communications instrumentation. It integrates track‑and‑hold and reference functions, providing a complete conversion solution with differential analog inputs and twos‑complement digital outputs.
Key features include a guaranteed 65 MSPS sample rate, 100 dB two‑tone SFDR, low jitter (<300 fs), and low power consumption (≈1.3 W). The device operates from a 5 V analog supply and a 3.3 V digital supply, and is packaged in a 52‑lead LQFP.
| Resolution | 14 bits |
|---|---|
| Maximum Sample Rate | 65 MSPS (guaranteed) |
| Supply Voltages | AVcc = 5 V, DVcc = 3.3 V |
The AD6644 provides a guaranteed sample rate of 65 MSPS.
The converter has a 14‑bit resolution.
It operates from AVcc = 5 V (4.85‑5.25 V) and DVcc = 3.3 V.