AD9221/AD9223/AD9220 are monolithic 12-bit A/D converters from Analog Devices that operate at flexible sampling rates of 1.5 MSPS, 3.0 MSPS, and 10.0 MSPS. These converters feature low power dissipation, low noise, and good linearity.
The AD9221/AD9223/AD9220 family provides high‑performance, single‑supply 12‑bit analog‑to‑digital conversion in pin‑compatible 28‑lead SOIC and SSOP packages. Each device features a built‑in sample‑and‑hold amplifier, programmable voltage reference, and a straight‑binary output with an out‑of‑range (OTR) indicator.
Key specifications include flexible sampling rates (1.5 MSPS, 3 MSPS, 10 MSPS), low power dissipation (59 mW‑254 mW), and excellent noise performance (0.09 LSB input‑referred noise). The devices are suited for imaging, communications, medical, and data‑acquisition systems, supporting both single‑ended and differential inputs.
| Resolution | 12 bits |
|---|---|
| Maximum Conversion Rate | 1.5 MSPS (AD9221), 3 MSPS (AD9223), 10 MSPS (AD9220) |
| Power Consumption (typical) | 59 mW (AD9221), 100 mW (AD9223), 254 mW (AD9220) |
| Supply Voltage | 5 V (single supply) |
| Out‑of‑Range Indicator | OTR signal |
The devices operate from a single 5 V supply.
AD9221 supports 1.5 MSPS, AD9223 supports 3 MSPS, and AD9220 supports 10 MSPS.
Typical power consumption is 59 mW for AD9221, 100 mW for AD9223, and 254 mW for AD9220.
Yes, an OTR (Out‑of‑Range) signal indicates an overflow condition.