The AD9254 is a 14-bit, 150 MSPS, 1.8 V analog-to-digital converter. It features 1.8 V analog supply operation, 1.8 V to 3.3 V output supply, SNR of 71.8 dBc (72.8 dBFS) to 70 MHz input, SFDR of 84 dBc to 70 MHz input, and low power consumption. It is suitable for applications such as ultrasound equipment, IF sampling in communications receivers, CDMA2000, WCDMA, TD-SCDMA, and WiMax, battery-powered instruments, handheld scopemeters, low-cost digital oscilloscopes, and macro, micro, and pico cell infrastructure.
The AD9254 is a 14‑bit, 150 MSPS analog‑to‑digital converter that operates from a single 1.8 V supply and includes an on‑chip voltage reference and sample‑and‑hold amplifier. It offers differential inputs with up to 650 MHz bandwidth and supports multiple data formats such as offset binary, Gray code, and two's complement.
The document provides full electrical specifications, pin descriptions, functional block diagrams, timing information, and recommended layout and grounding practices for designers integrating the AD9254 into ultrasound, communications, and measurement systems.
| Resolution | 14 Bits |
|---|---|
| Maximum Sample Rate | 150 MSPS |
| Analog Supply Voltage (AVDD) | 1.8 V |
| Digital Output Driver Supply (DRVDD) | 2.5 V |
| Signal‑to‑Noise Ratio (SNR) | 71.8 dBc (72.8 dBFS) at 70 MHz |
| Spurious‑Free Dynamic Range (SFDR) | 84 dBc at 70 MHz |
| Differential Nonlinearity (DNL) | +0.4 LSB |
| Integral Nonlinearity (INL) | +1.0 LSB |
| Operating Temperature Range | -40°C to +85°C |
The AD9254 can sample at up to 150 MSPS.
It requires an analog supply of 1.8 V (AVDD) and a digital output driver supply of 2.5 V (DRVDD).