The document describes a 16-bit, 25 MSPS/65 MSPS/80 MSPS/105 MSPS dual-channel analog-to-digital converter (ADC) with a 1.8V operating voltage. The product features low power consumption, high signal-to-noise ratio, and high spurious-free dynamic range. It is suitable for industrial instrumentation, X-ray, MRI, ultrasound equipment, high-speed pulse acquisition, chemical and spectrum analysis, and other applications.
The AD9650 is a dual, 16‑bit analog‑to‑digital converter designed for high‑frequency, wide‑dynamic‑range signal digitization up to 300 MHz. It operates from a single 1.8 V analog supply and a separate 1.8 V digital output driver supply, providing CMOS or LVDS output options.
This datasheet details the device’s specifications, functional block diagram, pin configurations, timing diagrams, power‑down modes, and design guidelines. It also includes programming information for the 3‑wire SPI interface and reference tables for performance parameters such as SNR, ENOB, and power consumption.
| Resolution | 16 bits |
|---|---|
| Power Consumption (105 MSPS, per channel) | ≈408 mW |
| Signal‑to‑Noise Ratio (30 MHz, 105 MSPS) | 82 dBFS |
The device uses a 1.8 V analog supply (AVDD) and a separate 1.8 V digital output driver supply (DRVDD).
The AD9650 provides flexible power‑down options that allow significant power savings when the device is not active.
Programming and control are performed via a 3‑wire SPI‑compatible serial interface.