The AD9631/AD9632 are ultralow distortion, wide bandwidth voltage feedback op amps. They feature wide bandwidth, ultralow distortion, low noise, and high speed slew rate. They are suitable for applications such as ADC input drivers, differential amplifiers, IF/RF amplifiers, pulse amplifiers, professional video DACs, current-to-voltage converters, baseband and video communications, PIN diode receivers, active filters/integrators/log amps, etc.
The AD9631 and AD9632 are high‑speed voltage‑feedback operational amplifiers offering ultralow distortion, wide small‑signal and large‑signal bandwidths, and fast settling times. They are supplied in 8‑lead PDIP and SOIC packages and operate over a –40 °C to +85 °C temperature range.
The document provides detailed electrical specifications, absolute maximum ratings, pin configurations, ordering information, and typical performance graphs such as harmonic distortion, gain‑bandwidth, and settling behavior.
| Settling Time to 0.01 % (2 V step) | 16 ns (both devices) |
|---|---|
| Input Noise (1 MHz‑200 MHz) | 7.0 nV/√Hz (AD9631), 4.3 nV/√Hz (AD9632) |
| Quiescent Supply Current | 17 mA (typical) |
| Operating Temperature Range (A‑grade) | -40 °C to +85 °C |
They are rated for –40 °C to +85 °C (A‑grade) operation.
Both devices settle to 0.01 % within 16 ns for a 2 V step.