AD9225 is a monolithic single-supply 12-bit 25 MSPS analog-to-digital converter with an on-chip, high performance sample-and-hold amplifier and voltage reference, features low power dissipation, no missing codes, guaranteed differential nonlinearity error, complete on-chip sample-and-hold amplifier and voltage reference, signal-to-noise and distortion ratio 71 dB, spurious-free dynamic range -85 dB, out-of-range indicator, straight binary output data, 28-lead SOIC and 28-lead SSOP compatible with 3 V logic.
The AD9225 provides a complete monolithic solution for high‑speed data acquisition, offering 12‑bit resolution at up to 25 MSPS with low power consumption (280 mW) from a single 5 V supply. It includes an on‑chip sample‑and‑hold amplifier, voltage reference, and digital correction logic, guaranteeing no missing codes across the full temperature range.
The device supports both differential and single‑ended inputs, features an out‑of‑range indicator, and is pin‑compatible with AD9220‑AD9224 parts. It is offered in 28‑lead SOIC and SSOP packages and can operate with 3 V or 5 V logic families.
| Resolution | 12 Bits |
|---|---|
| Maximum Conversion Rate | 25 MHz |
| Input Referenced Noise (VREF=1 V) | 0.35 LSB rms |
| Supply Voltage | 5 V (single supply) |
The AD9225 operates from a single 5 V analog supply (AVDD) and a separate digital supply (DRVDD) that can be 3 V to 5 V.
Yes, the device guarantees no missing codes over the full temperature range, providing true 12‑bit accuracy.
The OTR (Out‑of‑Range) output bit signals when the input signal exceeds the ADC’s input range, allowing detection of overflow conditions.
Typical power dissipation is about 280 mW for the device with an internal reference.