The OP11 is a quad matched 741-type operational amplifier from Analog Devices that is widely used in instrumentation amplifiers and audio amplifiers.
The OP11 is a quad‑matched 741‑type operational amplifier offered in a 14‑lead PDIP package. It is pin compatible with LM148, LM348, RM4156, RM4158, and HA4741 amplifiers and is designed for low noise, low offset, and high CMRR, making it suitable for instrumentation applications where space and cost are limited.
The datasheet lists detailed electrical characteristics, absolute maximum ratings, and typical performance graphs. Key parameters such as input offset voltage, bias current, slew rate, and power consumption are specified, along with temperature‑dependent behavior and recommended operating conditions.
| Input Noise Voltage Density at 1 kHz | 12 nV/√Hz |
|---|---|
| Guaranteed Offset Voltage (Vos) | 500 pV max |
The OP11 is pin compatible with the LM148, LM348, RM4156, RM4158, and HA4741 amplifiers.
The guaranteed offset voltage is 500 pV maximum.
The device is rated for a supply voltage (Vs) up to +22 V.