差动放大器是一种特殊用途放大器，旨在测量差分信号，也称为减法器。差动放大器能够移除干扰共模信号，称为共模抑制(CMR)，这是它的一项主要特性。与大多数类型的放大器不同，差动放大器通常能够测量超出供电轨的电压，适合存在较大直流或交流共模电压的应用。差动放大器是电流和电压监控应用的理想选择。我们提供各种具有最佳低失真、低功耗或高电压性能的差动放大器。
| Part# Results: 13 | # Channels | Slew Rate | Bandwidth G=10 | Rail-Rail Out | Rail-Rail In | CMRR (dB) | Gain Error (%) max | Gain Tempco (ppm/deg C)) | Max Vosi (µV) | VosiTC (µV/deg C) | Input Vnoise | Gain min. | Gain max. | Supply Current | Common Mode Input (V)min | Common Mode Input (V)max | US Price 1000-4999 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AD628 | 1 | 300mV/µs | 600KHz | No | Yes | 75dB | 0.1% | 5 | 1.5mV | 3 | 300nV/rtHz | 0.1 | 100 | 1.6mA | -120V | 120V | $1.82 |
| AD629 | 1 | 2.1V/µs | 500KHz | No | Yes | 90dB | 0.03% | 10 | 1mV | 3 | 550nV/rtHz | 1 | 1 | 1mA | -270V | 270V | $2.9 |
| AD8270 | 2 | 30V/µs | - | Yes | Yes | 76dB | 0.05% | 10 | 1mV | 2 | 38nV/rtHz | -2 | 3 | 2.5mA | -15.4V | 15.4V | $1.91 |
| AD8271 | 1 | 30V/µs | - | Yes | Yes | 80dB | 0.02% | 2 | 600µV | 2 | 38nV/rtHz | -2 | 3 | 2.6mA | -15.4V | 15.4V | $1.25 |
| AD8273 | 2 | 20V/µs | - | No | Yes | 77dB | 0.03% | 2 | 700µV | 3 | 26nV/rtHz | 0.5 | 2 | 2.5mA | -40.5V | 40.5V | $1.67 |
| AD8274 | 1 | 20V/µs | 10MHz | No | Yes | 77dB | 0.05% | 2 | 700µV | 3 | 26nV/rtHz | 0.5 | 2 | 2.6mA | -20.25V | 20.25V | $1.05 |
| AD8275 | 1 | 25V/µs | - | Yes | Yes | 86dB | 0.024% | 1 | 500µV | 2.5 | 40nV/rtHz | 0.2 | 0.2 | 2.3mA | -12.3V | 12V | $1.6 |
| AD8276 | 1 | 1.1V/µs | - | Yes | Yes | 86dB | 0.02% | 1 | 500µV | 0.5 | 65nV/rtHz | 1 | 1 | 200µA | -30.2V | 27V | $0.95 |
| AD8277 | 2 | 1.1V/µs | - | Yes | Yes | 86dB | 0.02% | 1 | - | 0.5 | 65nV/rtHz | 1 | 1 | 400µA | -30.2V | 27V | $1.6 |
| AD8278 | 1 | 1.4V/µs | - | Yes | Yes | 80dB | 0.02% | 1 | - | 0.3 | 47nV/rtHz | 0.5 | 2 | 200µA | -45.3V | 40.5V | $0.95 |
| AD8279 | 2 | 1.4V/µs | - | Yes | No | 80dB | 0.2% | 1 | - | 0.3 | 47nV/rtHz | 0.5 | 2 | 200µA | -45.3V | 40.5V | $1.6 |
| ADA4830-1 | 1 | 220V/µs | - | No | Yes | 65dB | - | - | - | - | - | - | - | - | -8.5V | 8.5V | $0.61 |
| AMP03 | 1 | 9.5V/µs | - | No | Yes | 85dB | 0.008% | - | 400µV | - | 90nV/rtHz | 1 | 1 | 2.5mA | -20V | 20V | $3.1 |
