OPA4227UAG4

Instrumentation, Op Amps, Buffer Amps Overview

The OPA4227UAG4 is a quad high-precision, low-noise operational amplifier manufactured by Texas Instruments. It features an 8 MHz gain-bandwidth product and a 2.3 V/us slew rate. The device operates within a supply voltage range of 5 V to 36 V (single) or 2.5 V to 18 V (dual). Key electrical specifications include a maximum input offset voltage of 200 uV, input bias current of 10 nA, and input voltage noise density of 3 nV/sqrt Hz. It provides a common-mode rejection ratio of 138 dB and delivers 45 mA output current per channel. The component is housed in a 14-pin SOIC package and supports rail-to-rail input and output operation across a temperature range of -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output capability for extended dynamic range
• Low noise performance with 3 nV/sqrt Hz input voltage noise density
• High precision characteristics including low offset voltage and high CMRR

Instrumentation, Op Amps, Buffer Amps Applications

• Precision data acquisition systems
• Medical instrumentation signal conditioning
• Industrial process control loops

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'G4' indicates lead-free and RoHS compliance status as defined by Texas Instruments documentation. Confirm the package type corresponds to the 14-SOIC variant. Ensure the ordering part number matches the exact quad configuration required for the design. Cross-reference the manufacturer datasheet for any recent changes in pinout or electrical limits before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a quad amplifier configuration is required alongside rail-to-rail I/O capabilities. It is suitable for applications demanding low noise and high precision without the need for shutdown functionality. Compare against single or dual-channel variants if fewer channels are sufficient to optimize board space and cost. Verify that the 8 MHz bandwidth meets the signal frequency requirements of the target application.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPAx227 family of high-precision operational amplifiers from Texas Instruments. The family includes dual-channel (OPA2227) and quad-channel (OPA4227) versions. The 'U' designation typically refers to the SOIC surface-mount package, while 'G4' denotes environmental compliance. This series is designed for general-purpose precision applications requiring low drift and low noise characteristics.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided source material.