The AD8273 is a high precision differential amplifier with extremely low distortion (0.00025% THD + N (20 kHz), 0.0015% THD + N (100 kHz)) and can drive 600 Ω loads. The AD8273 has two gain settings: gain of ½ (-6 dB) and gain of 2 (+6 dB).
The AD8273 is a dual‑channel, high‑precision difference amplifier offering very low distortion (0.00025 % THD+N at 20 kHz) and a ±4000 V human‑body‑model ESD rating. It features internal gain‑setting resistors for selectable gains of ½ (‑6 dB) or 2 (+6 dB), operates from ±2.5 V to ±18 V supplies, and draws only 2.5 mA per channel.
Typical performance includes a 20 MHz bandwidth, 20 V/µs slew rate, 77 dB CMRR, and 700 µV maximum offset voltage. The device is supplied in a 14‑lead SOIC package, is RoHS compliant, and is specified for an industrial temperature range of –40 °C to +85 °C.
| Bandwidth | 20 MHz |
|---|---|
| Slew Rate | 20 V/µs |
| Gain Error | 0.05 % |
| Supply Current (per channel) | 2.5 mA |
| Supply Voltage Range | ±2.5 V to ±18 V |
| Operating Temperature Range | –40 °C to +85 °C |
The device has a ±4000 V human‑body‑model (HBM) ESD rating.
It provides two selectable gains: ½ (‑6 dB) or 2 (+6 dB).
Each amplifier channel draws a maximum of 2.5 mA.