Analog Switches & Multiplexers

CD4052BPWR

CD4052BPWR - 4:1 Analog Multiplexer/Demux | TI

The CD4052BPWR is a differential 4-channel analog multiplexer/demultiplexer from Texas Instruments, part of the CD405xB CMOS logic family. It features two binary control inputs (A and B) and an inhibit input, allowing selection of one of four differential channel pairs. The device operates over a wide supply voltage range of 3V to 20V, making it suitable for various analog and digital switching applications. It is available in a 16-pin TSSOP (PW) package, offering a compact solution for space-constrained designs. An analog multiplexer is a device that routes one of several analog input signals to a common output based on digital control signals. The CD4052BPWR specifically implements a 4:1 configuration with two independent circuits, enabling differential signal routing. This type of component is essential in data acquisition systems, audio signal routing, and test equipment where multiple analog signals need to be selectively connected to a single processing path. The CD4052BPWR belongs to the broader category of analog switches and multiplexers, which are fundamental building blocks in analog signal processing chains. Key features of the CD4052BPWR include low ON resistance of 240 ohms, very low OFF leakage current, and logic-level conversion capability. The device supports bidirectional signal flow, making it versatile for both multiplexing and demultiplexing operations. The inhibit input allows all channels to be disabled simultaneously, providing a high-impedance state when needed. The wide operating temperature range of -55°C to 125°C ensures reliable performance in harsh environments. The CD4052BPWR is designed using CMOS technology, which provides low power consumption and high noise immunity. The device can handle analog signals up to the full supply voltage range, and its logic inputs are compatible with standard CMOS and TTL levels. The TSSOP-16 package has a height of 1.20 mm and a pitch of 0.65 mm, making it suitable for high-density PCB layouts. The device is RoHS compliant and lead-free, meeting modern environmental standards. Typical applications include audio signal routing, data acquisition systems, analog-to-digital converter input selection, and test and measurement equipment. The CD4052BPWR is also used in automotive LIN circuits, where its wide supply range and robust ESD protection are beneficial. Its low ON resistance and fast switching speed make it ideal for precision analog signal switching. When designing with the CD4052BPWR, ensure that the supply voltage does not exceed the absolute maximum rating of 20V. Proper decoupling capacitors should be placed near the VDD and VSS pins to minimize noise. The inhibit input can be used to implement power-down or channel isolation functions, enhancing system flexibility.