AD8226 is a wide supply range, rail-to-rail output instrumentation amplifier from Analog Devices. It is suitable for industrial process controls, bridge amplifiers, medical instrumentation, portable data acquisition and multichannel systems.
The AD8226 is a low‑cost, wide supply range instrumentation amplifier that requires a single external resistor to set gain from 1 to 1000. It offers rail‑to‑rail output, input voltage below ground, and operates from 2.2 V–36 V (single supply) or +1.35 V–+18 V (dual supply), making it suitable for industrial process controls, medical instrumentation, and portable data‑acquisition systems.
The handbook provides a complete set of data: key features, application examples, pin‑out diagrams, detailed electrical specifications, absolute maximum ratings, thermal resistance, ESD protection guidelines, and ordering information. It also includes typical performance curves, theory of operation, and design notes for gain selection and reference terminal usage.
| Supply voltage (single) | 2.2 V to 36 V |
|---|---|
| Supply voltage (dual) | +1.35 V to +18 V |
| Gain range | 1 to 1000 |
| Bandwidth (G=1) | 1.5 MHz |
| CMRR (G=1) typical | 90 dB minimum for BR models |
| Input noise | 22 nV/VHz |
| Typical supply current | 350 pA |
| Operating temperature range | -40°C to +125°C |
| Package options | 8‑lead SOIC and MSOP |
The AD8226 can be set to any gain between 1 and 1000 using a single external resistor.
It operates from 2.2 V to 36 V on a single supply or from +1.35 V to +18 V on dual supplies.
The typical supply current is 350 pA.
The device is specified for operation from –40 °C to +125 °C.