The OP249 is a high performance, high precision dual JFET operational amplifier with fast slew rate, low distortion, low noise and wide bandwidth. It is suitable for high frequency signal amplification, audio amplification, instrumentation amplification and other applications.
The OP249 is a high‑speed, precision dual JFET op‑amp offering a typical slew rate of 22 V/µs and a maximum settling time of 1.2 µs (0.01%). Its ultra‑high open‑loop gain (minimum 1000 V/mV), low offset voltage (200 µV typical), and very low total harmonic distortion (0.002% typical) make it suitable for high‑speed DAC/ADC output stages, active filters, low‑distortion audio, and instrumentation amplifiers.
The device is supplied in several JEDEC‑standard packages (CERDIP, PDIP, SOIC) with a supply voltage range of ±15 V (up to ±18 V absolute maximum). Electrical characteristics include a typical input bias current of 30 pA, PSRR of 12 µV/V, and a gain‑bandwidth product of about 3.5 MHz. Detailed pin configurations, absolute maximum ratings, and typical performance graphs are provided for design reference.
| Slew Rate | 22 V/µs typical |
|---|---|
| Settling Time (0.01%) | 1.2 µs maximum |
| Offset Voltage | 200 µV typical |
| Open‑Loop Gain | 1000 V/mV minimum |
| Total Harmonic Distortion | 0.002% typical |
| Supply Voltage Range | ±15 V (±4.5 V to ±18 V) |
The OP249 has a typical slew rate of 22 V/µs.
The maximum settling time is 1.2 µs.
The typical offset voltage is 200 µV.