The AD8278 is a low power, wide supply range, low cost difference amplifier with a gain of 1/2. Its features include a wide input range, rugged input overvoltage protection, low supply current and low power dissipation.
The AD8278 is a low‑power, wide‑supply‑range difference amplifier designed for precision signal conditioning. It offers a typical supply current of 200 pA, bandwidth up to 1 MHz (G = 2), and a common‑mode rejection ratio of 80 dB. The device operates from single supplies of 2 V to 36 V or dual supplies of +2 V to +18 V and is available in 8‑lead MSOP and SOIC packages.
The handbook includes detailed specifications, absolute maximum ratings, thermal resistance data, pin‑out diagrams, and application notes such as voltage and current monitoring, instrumentation‑amplifier building blocks, and portable battery‑powered equipment. It also outlines ESD precautions and short‑circuit protection features.
| Supply current | 200 pA |
|---|---|
| Bandwidth (G = 2) | 1 MHz |
| Gain error | 0.005 % |
| Common‑mode rejection ratio | 80 dB |
| Operating voltage range (single supply) | 2 V to 36 V |
The AD8278 draws a maximum supply current of 200 pA.
The input voltage range is –3 × (Vs + 0.1) to +3 × (Vs – 1.5).
The bandwidth is 1 MHz when the gain is set to 2.