UAF42 AU Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: UAF42 AU
Brand: Texas Instruments
SKU: UAF42 AU
Availability: InStock

UAF42 AU is a universal 2nd-order active filter IC from Texas Instruments. Operates on ±3V to ±18V supply with low-pass, high-pass, band-pass, and notch filter modes. Ideal for audio processing, sensor signal conditioning, and instrumentation applications. Available in SOIC package with worldwide shipping.

ACTIVEIntegrated CircuitVerified May 2026

Package / Visual Reference

UAF42 AUSmall Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: N/A
Category: Integrated Circuit
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of UAF42 AU?

Universal 2nd-order active filter supporting low-pass, high-pass, band-pass, and notch configurations
Wide supply voltage range: ±3V to ±18V for flexible system integration
SOIC package for compact PCB footprint and easy surface-mount assembly
Texas Instruments quality for reliable performance in industrial and audio applications

What is UAF42 AU used for?

The UAF42 AU is widely used in audio signal processing for tone control, equalization, and noise filtering in consumer and professional audio equipment. It is also commonly deployed in sensor signal conditioning circuits for medical instruments, industrial measurement systems, and data acquisition front-ends. Additionally, it serves in communications and instrumentation applications requiring precise frequency-selective filtering with adjustable center frequency and Q factor.

What are the specifications of UAF42 AU?

YTEOL	EYTEOL
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Country of Origin	Country of Origin

What are equivalent replacements for UAF42 AU?

Compatible alternatives and drop-in replacements for UAF42 AU:

UAF42AUTexas Instruments

Continuous Time Filter, 1 Func, Butterworth/bessel/chebyshev, Universal, PDSO16

View Part →

UAF42APTexas Instruments

Continuous Time Filter, 1 Func, Butterworth/bessel/chebyshev, Universal, PDIP14

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

Which signal-processing circuits benefit from UAF42 AU?

This 2nd-order active filter supports low-pass, high-pass, band-pass, and notch responses for audio, sensor conditioning, and precision instrumentation signal paths.

What supply planning is needed for this active filter?

Designers should provide a balanced supply within the stated ±3 V to ±18 V range and verify external component values for the desired cutoff response.

How should procurement qualify the correct UAF42 AU device?

Buyers should match the 2nd-order filter function, SOIC package, ±3 V to ±18 V operating range, and request traceable date-code information.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

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UAF42 AU Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of UAF42 AU?

What is UAF42 AU used for?

What are the specifications of UAF42 AU?

Compliance & Regulatory

What are equivalent replacements for UAF42 AU?

Frequently Asked Questions

Which signal-processing circuits benefit from UAF42 AU?

What supply planning is needed for this active filter?

How should procurement qualify the correct UAF42 AU device?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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