OPA4137P

Instrumentation, Op Amps, Buffer Amps Overview

The OPA4137P is a quad-channel, low-cost FET-input operational amplifier from the MicroAmplifier series by Texas Instruments. It features a gain-bandwidth product of 1 MHz and a slew rate of 3.5 V/us. The input bias current is 100 pA with an input offset voltage of 10 mV. Operating on dual supplies from 2.25 V to 18 V (or single supply 4.5 V to 36 V), it draws 220 uA per channel. Output current capability is 60 mA per channel. It offers 84 dB CMRR and 45 nV/sqrt Hz voltage noise density. The device supports rail-to-rail input/output operation and is housed in a PDIP-14 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Quad-channel FET-input architecture providing high input impedance and low bias current for precision signal conditioning.
• Rail-to-rail input and output capabilities allowing full dynamic range utilization across the supply voltage spectrum.
• Low power consumption design suitable for battery-operated applications while maintaining general-purpose performance.

Instrumentation, Op Amps, Buffer Amps Applications

• Multi-channel data acquisition systems requiring low input bias current.
• Industrial process control signal conditioning circuits.
• Audio preamplifier stages utilizing rail-to-rail swing.

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the manufacturer designation carefully as the OPA4137 series is primarily associated with Texas Instruments. Confirm the specific suffix 'P' corresponds to the PDIP-14 package variant. Check lifecycle status for obsolescence or end-of-life notices prior to procurement planning.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when four independent amplifiers are required in a single package. Ensure the application benefits from FET-input characteristics such as low bias current. Verify that the 1 MHz bandwidth meets the signal frequency requirements. Consider the PDIP-14 package constraints for PCB layout and thermal management.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the OPA137/237/437 family of low-cost FET-input operational amplifiers. It provides a quad-channel configuration compared to the single (OPA137) and dual (OPA237) variants. The family is designed for general-purpose applications where moderate precision and low power are prioritized over ultra-high speed or extreme precision.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers: OPA4137UA, OPA4137UAG4.