Texas Instruments

CD74HC4051PWRG4

CD74HC4051PWRG4 Description

The CD74HC4051PWRG4 from Texas Instruments is a high-performance 8:1 analog multiplexer/demultiplexer designed for precision signal routing in mixed-signal systems. Housed in a compact 16-pin TSSOP package, this IC features a low on-state resistance (130Ω max) and minimal channel-to-channel matching (ΔRon: 5Ω), ensuring consistent signal integrity across all channels. It operates over a single supply voltage range of 2V to 6V or a dual supply range of ±1V to ±5V, making it versatile for both single-ended and differential signal applications. With a -3dB bandwidth of 180MHz and low channel capacitance (25pF), it excels in high-frequency signal switching while minimizing distortion.

CD74HC4051PWRG4 Features

• Low Leakage Current: Max 400nA leakage ensures minimal power loss in off-state conditions.
• Wide Voltage Range: Supports 2V–6V (single supply) or ±1V–±5V (dual supply) for flexible system integration.
• High-Speed Performance: 180MHz bandwidth enables reliable operation in RF and high-speed data acquisition systems.
• Low Crosstalk: Tight ΔRon (5Ω) and low capacitance (25pF) reduce signal interference between channels.
• Robust Packaging: Tape & Reel (TR) delivery in a 16-TSSOP package, compliant with ROHS3 and REACH environmental standards.
• Low Power Consumption: Optimized for battery-powered and portable applications.

CD74HC4051PWRG4 Applications

• Test & Measurement Equipment: Precision signal routing in oscilloscopes and data loggers.
• Audio/Video Switching: Low-distortion multiplexing in AV receivers and professional broadcast gear.
• Industrial Automation: Sensor signal conditioning and PLC systems requiring high reliability.
• Medical Devices: Low-noise signal selection in patient monitoring and diagnostic tools.
• Communications Systems: RF signal switching and antenna diversity in wireless infrastructure.

Conclusion of CD74HC4051PWRG4

The CD74HC4051PWRG4 stands out for its low on-resistance, high bandwidth, and dual-supply flexibility, making it ideal for demanding analog signal routing applications. While marked obsolete, its performance metrics—such as 180MHz bandwidth and 5Ω channel matching—remain competitive for legacy designs or replacements in industrial, medical, and communication systems. Engineers seeking a balance of speed, precision, and power efficiency will find this multiplexer a robust solution despite its discontinued status.