The AD704 is a quad, low power bipolar op amp that has the low input bias current of a BiFET amplifier and offers a significantly lower IB drift over temperature. It uses superbeta bipolar input transistors to achieve picoampere input bias current levels (similar to FET input amplifiers at room temperature), while its IB typically increases only by 5× at 125°C. The op amp is suitable for applications such as industrial/process controls, weigh scales, ECG/EKG instrumentation, and low frequency active filters.
The AD704 is a quad, low‑power bipolar operational amplifier with picoampere input bias current and ultra‑low offset voltage. It offers high precision, low noise, and low power consumption, making it suitable for industrial controls, weighing scales, ECG instrumentation, and low‑frequency active filters.
The document includes detailed specifications such as input offset voltage, bias current, supply voltage range, unity‑gain bandwidth, and typical performance curves, as well as connection diagrams for various package types and notes on ESD protection and absolute maximum ratings.
| Power Supply Rejection (typical) | 100 dB |
|---|---|
| Unity‑Gain Bandwidth | 0.8 MHz |
| Slew Rate (unity gain) | 0.15 V/µs |
| Supply Voltage Range | +2.0 V to +18 V |
| Quiescent Current (per amplifier) | 15 mA |
The AD704 operates from +2.0 V to +18 V.
The unity‑gain bandwidth is 0.8 MHz.