OPA4345UAG4

Instrumentation, Op Amps, Buffer Amps Overview

The OPA4345UAG4 is a quad-channel, low-power, single-supply operational amplifier manufactured by Texas Instruments. It features rail-to-rail input and output capabilities, making it suitable for applications requiring maximum dynamic range from a single power supply. The device operates within a voltage range of 2.7 V to 5.5 V and draws a typical supply current of 150 µA per channel. Key electrical specifications include a gain-bandwidth product of 3 MHz, a slew rate of 2 V/µs, and an input offset voltage of 200 µV. It is housed in an 8-pin SOIC package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Quad-channel configuration providing four independent amplifiers in a single package
• Rail-to-rail input and output operation for extended signal swing
• Low power consumption with 150 µA supply current per channel
• Single-supply operation compatible with 2.7 V to 5.5 V sources

Instrumentation, Op Amps, Buffer Amps Applications

• Portable battery-powered instrumentation
• Active filtering in signal conditioning circuits
• Sensor signal amplification
• Data acquisition systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's current datasheet to confirm lead-free status and RoHS compliance details. Ensure the SOIC-8 package dimensions match your PCB footprint requirements. Confirm availability status as component lifecycles may change, potentially affecting long-term production support.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when multiple low-power amplifiers are needed in a compact form factor. The rail-to-rail I/O characteristic is critical for maximizing headroom in low-voltage single-supply designs. Compare the 3 MHz bandwidth and 200 µV offset voltage against application requirements to ensure sufficient precision and speed without unnecessary power consumption.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the OPAx345 family of micro-amplifiers designed for low-cost, low-power applications. The '4' indicates a quad-channel variant, while 'UA' denotes the SOIC-8 surface-mount package. The 'G4' suffix typically signifies a lead-free and RoHS-compliant version produced by Texas Instruments.