The AD9255 is a 14-bit, 125 MSPS/105 MSPS/80 MSPS, 1.8 V analog-to-digital converter. It features high SNR, low power consumption, flexible analog input range, etc.
The AD9255 is a 14‑bit, 125 MSPS analog‑to‑digital converter designed for communications, instrumentation, and medical imaging applications. It operates from a single 1.8 V supply and offers both 1.8 V CMOS and LVDS (DDR) output options, with a programmable SPI‑compatible serial interface for configuration.
The datasheet includes detailed specifications such as signal‑to‑noise ratio, power consumption, input bandwidth, and absolute maximum ratings, as well as functional block diagrams, timing diagrams, and ordering information for the 48‑lead LFCSP package.
| Resolution | 14 bits |
|---|---|
| Signal‑to‑Noise Ratio (SNR) | 78.3 dBFS @ 70 MHz and 125 MSPS |
| Power Consumption (DC Input, 125 MSPS) | 371 mW |
| Analog Input Bandwidth | 650 MHz |
| Supply Voltage | 1.8 V (AVDD, DRVDD, SVDD) |
The device is specified for an industrial temperature range of –40 °C to +85 °C.
It offers parallel 1.8 V CMOS or LVDS (DDR) output modes.
Configuration and control are performed via a 3‑wire SPI‑compatible serial interface.