The AD8226 is a low power voltage gain amplifier (PGA) with a 1 to 1000 gain range
The AD8226 is a low‑cost, wide‑power‑supply instrumentation amplifier that requires only a single external resistor to set gain, with a gain range of 1 to 1000. It operates from a single supply of 2.2 V to 36 V or a dual supply of +1.35 V to +18 V, providing rail‑to‑rail input and output.
Its robust input design tolerates voltages beyond the supply rails, allowing safe operation even when the input exceeds the supply voltage. The device is offered in 8‑pin SOIC and MSOP packages and is rated for temperatures from –40 °C to +125 °C, making it suitable for compact, space‑constrained industrial applications. This manual is written in Chinese.
| Gain range | 1 to 1000 |
|---|---|
| Single‑supply voltage range | 2.2 V to 36 V |
| Dual‑supply voltage range | +1.35 V to +18 V |
| Bandwidth at G=1 | 1.5 MHz |
| CMRR (DC to 60 Hz) at G=1 | 90 dB |
| Input voltage noise (1 kHz) | 22 nV/√Hz |
| Typical supply current | 350 µA |
| Operating temperature range | -40 °C to +125 °C |
The AD8226 provides a gain range from 1 to 1000.
It can run from a single supply of 2.2 V to 36 V or from dual supplies of +1.35 V to +18 V.
At a gain of 1, the bandwidth is 1.5 MHz.
The maximum supply voltage is +18 V for dual‑supply operation and 36 V for single‑supply operation.