The AD9225 is a monolithic, single-supply, 12-bit, 25 MS/s analog-to-digital converter with an on-chip, high performance sample-and-hold amplifier and voltage reference.
The AD9225 is a monolithic 12‑bit analog‑to‑digital converter capable of 25 MSPS operation. It features a built‑in sample‑and‑hold amplifier, on‑chip voltage reference, and an out‑of‑range indicator, making it suitable for communications, imaging, and medical ultrasound applications. The device operates from a single 5 V analog supply and supports both 3 V and 5 V digital logic families.
The converter is offered in 28‑lead SOIC and SSOP packages and is pin‑compatible with the AD9220‑AD9224 family. Detailed electrical specifications, absolute maximum ratings, pin functions, and typical performance graphs are provided throughout the document.
| Resolution | 12 Bits |
|---|---|
| Maximum Conversion Rate | 25 MHz |
| Input‑Referenced Noise (VREF=2.0 V) | 0.17 LSB rms |
| Integral Nonlinearity (INL) | +2.5 LSB (max) |
| Differential Nonlinearity (DNL) | +1.0 LSB (max) |
| Supply Voltage (AVDD) | 5 V (typical) |
| Package Options | 28‑Lead SOIC and 28‑Lead SSOP |
The AD9225 can operate at a maximum conversion rate of 25 MSPS (25 MHz).
Yes, the OTR output bit signals when the input signal exceeds the converter’s input range.
The device uses a single 5 V analog supply (AVDD) and a digital supply (DRVDD) of 3 V to 5 V.