The AD8276/AD8277 are general-purpose, unity-gain difference amplifiers intended for precision signal conditioning in portable, battery-powered equipment, test and measurement applications, and other applications requiring low power dissipation, wide power supply range, and low offset voltage drift.
The AD8276 and AD8277 are low‑power, wide‑supply‑range unity‑gain difference amplifiers intended for precision signal‑conditioning in power‑critical applications. They offer high common‑mode rejection, low offset drift, and can operate from a single supply (2 V to 36 V) or dual supplies (+2 V to +18 V).
The document includes detailed specifications such as bandwidth (550 kHz), slew rate (up to 1.1 V/µs), supply current (200 pA per channel), and absolute maximum ratings. Pin‑out diagrams, typical performance curves, thermal resistance data, and an ordering guide for various MSOP and SOIC packages are also provided.
| Supply Current | 200 pA per channel (max) |
|---|---|
| Bandwidth | 550 kHz |
| CMRR | ≥86 dB |
| Slew Rate | 1.1 V/µs |
| Operating Voltage Range (single supply) | 2 V to 36 V |
| Operating Voltage Range (dual supply) | +2 V to +18 V |
| Temperature Range | −40 °C to +85 °C (industrial) |
| Gain Error | 0.005 % to 0.02 % (typ) |
| Gain Drift | 1 ppm/°C (typ) |
| Short‑Circuit Current Limit | ±15 mA |
| Capacitive Load Drive | 200 pF |
The devices draw up to 200 pA per channel, which is the maximum supply current.
They can operate from a single supply of 2 V to 36 V or from dual supplies of +2 V to +18 V.
The bandwidth is specified as 550 kHz.