OPA2137E/2K5G4

Instrumentation, Op Amps, Buffer Amps Overview

The OPA2137E/2K5G4 is a dual-channel, low-cost FET-input operational amplifier from the MicroAmplifier series by Texas Instruments. It features rail-to-rail input and output capabilities with a gain-bandwidth product of 1 MHz and a slew rate of 3.5 V/us. The device operates on supply voltages ranging from 4.5 V to 36 V (single) or ±2.25 V to ±18 V (dual). Key electrical parameters include an input bias current of 100 pA, input offset voltage of 10 mV, and input voltage noise density of 45 nV/sqrt Hz. It delivers 60 mA per channel output current with a common-mode rejection ratio of 84 dB.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• FET-input architecture providing low input bias current
• Rail-to-rail input and output operation for maximum dynamic range
• Low cost general-purpose design suitable for high-volume applications

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered instrumentation circuits
• Signal conditioning in industrial process control
• Audio preamplifiers requiring low distortion

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix /2K5G4 against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the ordering part number with authorized distributors to avoid counterfeit components. Confirm that the operating temperature range aligns with your system's environmental constraints before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a balance between low power consumption and moderate bandwidth is required. The rail-to-rail I/O feature makes it suitable for single-supply systems where signal swing is critical. Compare input offset voltage and bias current against application requirements to ensure adequate precision. Consider the SOIC-8 package dimensions for PCB layout compatibility during the initial design phase.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPA2137 family of low-cost FET-input operational amplifiers. It shares core electrical characteristics with variants such as OPA2137UA and OPA2137P, differing primarily in packaging options like SOIC-8 and PDIP-8. The family is designed for general-purpose analog signal processing tasks within the MicroAmplifier product line.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers include OPA2137UA, OPA2137P, OPA2137UAE4, and OPA2137UAG4. Verify pinout compatibility and package dimensions before substitution.