OPA131UJ

Instrumentation, Op Amps, Buffer Amps Overview

The OPA131UJ is a single-channel J-FET input operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 4 MHz and a slew rate of 10 V/µs. The device operates within a supply voltage range of 9 V to 36 V, with a maximum dual supply of 18 V. Input bias current is specified at 5 pA, while the output current capability reaches 25 mA per channel. It is housed in an 8-SOIC package and supports surface-mount installation.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Utilizes J-FET input technology for low noise and high input impedance
• Provides general-purpose amplification capabilities with low power consumption
• Designed for stable operation across industrial temperature ranges

Instrumentation, Op Amps, Buffer Amps Applications

• Precision signal conditioning circuits
• Audio preamplifier stages
• Sensor interface applications requiring low bias current

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'UJ' corresponds to the standard 8-SOIC tube packaging configuration. Confirm RoHS compliance status matches current manufacturing revisions. Ensure the ordering part number aligns with the required lead time and availability from authorized distributors. Cross-reference datasheet revision dates to ensure compatibility with design specifications.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel J-FET op-amp is required with moderate bandwidth and low input bias current. Compare against OPA2131 or OPA4131 if multiple channels are needed. Verify that the 9 V minimum supply voltage meets system requirements. Check thermal performance within the SOIC package for the intended application load.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPAy131 family of low-noise J-FET operational amplifiers. The family includes dual-channel (OPA2131) and quad-channel (OPA4131) variants sharing similar electrical characteristics. The OPA131UJ specifically denotes the single-channel version in the SOIC package. This series is designed for applications demanding low distortion and high precision.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct pin-compatible substitutes include OPA2131UJ and OPA4131UAG4 for multi-channel needs. Verify functional equivalence regarding input bias current and noise specifications before substitution.