OPA4322SAIPW

Instrumentation, Op Amps, Buffer Amps Overview

The OPA4322SAIPW is a quad-channel, low-noise CMOS operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 20 MHz and a slew rate of 10 V/µs. The device operates on a single supply voltage ranging from 1.8 V to 5.5 V with a typical quiescent current of 1.6 mA for all four channels. Key electrical specifications include an input offset voltage of 2 mV, input bias current of 10 pA, and input voltage noise density of 8.5 nV/√Hz. It offers rail-to-rail input and output capabilities with a common-mode rejection ratio of 100 dB. The component is housed in a 16-TSSOP package and supports an operating temperature range of -40°C to 125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output capability enables full signal swing across the entire supply voltage range.
• Low noise performance with 8.5 nV/√Hz input voltage noise density suitable for precision applications.
• CMOS architecture provides high input impedance with minimal input bias current.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered instrumentation systems requiring low power consumption
• Portable medical devices utilizing single-supply operation
• Signal conditioning circuits in data acquisition systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP-16 package variant when sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the ordering part number matches the exact channel count and package type required for the design. Cross-reference the datasheet revision to confirm pinout consistency.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for designs requiring quad-channel amplification within a compact surface-mount footprint. The 1.8 V minimum supply voltage makes it suitable for modern low-voltage digital systems. Consider the 20 MHz bandwidth and 10 V/µs slew rate for moderate-speed signal processing tasks where low noise is critical.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPAx322 family of low-noise, rail-to-rail operational amplifiers. The '4' in the model number indicates a quad-channel configuration, distinguishing it from dual (OPA2322) or single (OPA1322) channel variants. All members share similar electrical characteristics but differ in channel count and physical package options.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct functional substitutes within the same family include OPA2322SAIDGSR for dual-channel applications. Verify package compatibility when replacing with other OPAx322 variants. Check if the specific application requires the quad-channel configuration or if a lower channel count suffices.