UAF42 AU Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
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.
- 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
Key Features
- 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
Applications
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.
Specifications
| YTEOL | EYTEOL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Country of Origin | Country of Origin |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UAF42 AU:
Continuous Time Filter, 1 Func, Butterworth/bessel/chebyshev, Universal, PDSO16
Continuous Time Filter, 1 Func, Butterworth/bessel/chebyshev, Universal, PDIP14
Frequently Asked Questions
What filter topologies does the UAF42 AU support?
The UAF42 AU supports four filter topologies simultaneously from a single device: low-pass, high-pass, band-pass, and notch (band-reject). This universal architecture allows engineers to select the desired output pin for the required filter response, making it highly versatile for audio and signal conditioning designs.
What is the operating supply voltage range of the UAF42 AU?
The UAF42 AU operates over a wide supply voltage range of ±3V to ±18V (dual supply). This flexibility makes it compatible with both low-voltage battery-powered systems and higher-voltage industrial or audio equipment, simplifying power supply design across different applications.
What are typical applications for the UAF42 AU?
Typical applications include audio equalizers and tone control circuits, anti-aliasing filters for ADC inputs, sensor signal conditioning in medical and industrial instruments, and frequency-selective filtering in communications equipment. The adjustable center frequency and Q factor make it suitable for both fixed and tunable filter designs.
What package is the UAF42 AU available in, and is it RoHS compliant?
The UAF42 AU is available in a 14-pin SOIC (Small Outline Integrated Circuit) surface-mount package, which offers a compact footprint suitable for modern PCB designs. Texas Instruments provides RoHS-compliant versions to meet environmental regulations for electronics sold in global markets.
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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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