AD797 is a high-precision, low-noise, low-distortion operational amplifier from Analog Devices. It is suitable for professional audio preamplifiers, IR, CCD and sonar imaging systems, spectrum analyzers, ultrasound preamplifiers, seismic detectors and Σ-Δ ADC/DAC buffers.
The AD797 is an ultralow‑noise, low‑distortion operational amplifier designed for high‑performance audio, instrumentation, and sensor applications. It offers a typical input voltage noise of 0.9 nV/√Hz, a gain‑bandwidth product of 110 MHz, and a slew rate of 20 V/µs.
The document includes detailed electrical specifications, absolute maximum ratings, typical performance curves, pin‑out diagrams for PDIP and SOIC packages, and an ordering guide covering all AD797 variants and package options.
| Input voltage noise (typical) | 0.9 nV/√Hz |
|---|---|
| Total harmonic distortion (20 kHz) | -120 dB |
| Gain‑bandwidth product | 110 MHz (G = 1000) |
| Slew rate | 20 V/µs |
| Output drive current | 50 mA |
| Power‑supply range | +5 V to +15 V |
The AD797 has a typical input voltage noise of 0.9 nV/√Hz at 1 kHz.
The AD797 achieves –120 dB total harmonic distortion at 20 kHz.
The AD797 provides a gain‑bandwidth product of 110 MHz (G = 1000).
The AD797 is specified for supply voltages from +5 V to +15 V.