AD9254 is a 14-bit, 150 MSPS, 1.8 V Analog-to-Digital Converter.
The AD9254 is a monolithic 14‑bit ADC that operates from a single 1.8 V analog supply and supports up to 150 MSPS conversion rates. It features a high‑performance sample‑and‑hold amplifier, on‑chip voltage reference, and a differential input architecture with 650 MHz bandwidth, making it suitable for ultrasound, communications receivers, handheld instruments and low‑cost oscilloscopes.
Key features include selectable output formats (offset binary, Gray code, two's complement), a clock duty‑cycle stabilizer, low power consumption (430 mW at 150 MSPS), and a 48‑lead LFCSP_VQ package that operates over an industrial temperature range (‑40 °C to +85 °C). The device provides a standard serial port interface for configuration and data output.
| Resolution | 14 bits |
|---|---|
| Maximum Sample Rate | 150 MSPS |
| Power Consumption (DC input) | 430 mW |
| Signal‑to‑Noise Ratio (2.4 MHz input) | 71.8 dBc |
| Analog Input Bandwidth | 650 MHz |
| Analog Supply Voltage (AVDD) | 1.8 V |
| Digital Output Driver Supply (DRVDD) | 2.5 V (3.3 V optional) |
The AD9254 can sample at up to 150 MSPS.
It uses a 1.8 V analog supply (AVDD) and a digital driver supply of 2.5 V (or 3.3 V for some logic families).
The differential input bandwidth is specified as 650 MHz.
The ADC can output data in offset binary, Gray code, or two's complement formats.