OPA4251UAG4

Instrumentation, Op Amps, Buffer Amps Overview

The OPA4251UAG4 is a quad-channel, single-supply micro-power operational amplifier from the OPAx251 family. It features a quiescent current of 25μA per amplifier and operates within a supply voltage range of 2.7V to 36V (single) or ±1.35V to ±18V (dual). The device provides rail-to-rail output swing, low input offset voltage (±250μV max), high common-mode rejection ratio (124dB), and high open-loop gain (128dB). It is unity-gain stable and designed for battery-powered portable applications.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Micro-power consumption with 25μA quiescent current per channel
• Rail-to-rail output capability extending within 50mV of supply rails
• High precision performance including low offset voltage and high common-mode rejection
• Wide supply voltage operation supporting both single and dual power configurations

Instrumentation, Op Amps, Buffer Amps Applications

• Battery operated instruments
• Portable devices
• Medical instruments
• Test equipment

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'G4' against the manufacturer's latest documentation to confirm compliance status and material specifications. Ensure the package type matches the design requirements. Confirm availability through authorized distributors as production status may change. Validate that the component meets all environmental regulations required for the target market.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits requiring low power consumption alongside high precision in a quad configuration. The OPAx251 series is optimized for higher supply voltages compared to the OPAx241 series. Consider the wide supply range and rail-to-rail output when interfacing with various signal sources and loads in portable systems.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the OPAx251 family of single-supply micro-power operational amplifiers manufactured by Texas Instruments. The family includes single (OPA251), dual (OPA2251), and quad (OPA4251) variants. These devices are specifically engineered for battery-powered applications where low current draw and high accuracy are critical requirements.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Compatible substitutes include other members of the OPAx251 family such as OPA2251 and OPA251, depending on the required channel count. Verify pin compatibility and electrical characteristics before substitution.