onsemi MC74HC4052ADWR2: Dual 4-Channel Analog Multiplexer/Demultiplexer Datasheet and Application Overview

The onsemi MC74HC4052ADWR2 is a high-performance, dual 4-channel analog multiplexer/demultiplexer integrated circuit fabricated with advanced silicon-gate CMOS technology. This device is engineered to handle both analog and digital signals, making it a versatile solution for a wide array of electronic systems where signal routing and management are critical. Its design leverages the HC logic family, offering the benefits of low power consumption combined with the high noise immunity and operating capabilities typical of CMOS technology.

A primary feature of the MC74HC4052ADWR2 is its dual independent 4-channel multiplexing architecture. Each multiplexer section features four analog inputs/outputs (Y0, Y1, Y2, Y3) and a common output/input (Z). The specific channel connection is determined by the state of the two binary select inputs (S0, S1) and the state of the active-low enable (E) input. This allows a single IC to manage two separate signal paths, effectively functioning as a double-pole, quadruple-throw (2P4T) analog switch. A significant advantage is its ability to handle bidirectional analog and digital signals, providing flexibility in both multiplexing and demultiplexing applications.

A critical specification from the datasheet is its wide analog input voltage range, which can extend from -5V to +5V when using a dual supply (e.g., VCC = +5V, VEE = -5V). This capability to swing below ground is essential for processing AC signals and bipolar analog voltages commonly found in audio, instrumentation, and data acquisition systems. The device also boasts low "on" resistance, typically around 70Ω, which minimizes signal attenuation and distortion. Furthermore, it features very low quiescent current,

enabling its use in power-sensitive applications.

The robust performance is ensured by its break-before-make switching action, which prevents momentary shorting between channels during transition. The device is offered in a compact SOIC-16 package (DWR2), suitable for space-constrained PCB designs.

Application Overview

The MC74HC4052ADWR2 finds extensive use in systems requiring the selection and routing of multiple signal sources. Key applications include:

Data Acquisition Systems (DAQ): Used to multiplex analog signals from multiple sensors (e.g., temperature, pressure) into a single analog-to-digital converter (ADC), significantly reducing system cost and complexity.

Audio and Video Signal Routing: Employed in audio mixers, communication equipment, and video systems to switch between different input channels without introducing significant noise or distortion.

Programmable Logic and Instrumentation: Serves as a configurable component in test equipment, medical devices, and industrial controllers, allowing a microprocessor to dynamically select signal paths via the digital select lines.

Telecommunication Systems: Used for signal gating and modulation/demodulation circuits where multiple data lines need to be managed efficiently.

ICGOODFIND: The onsemi MC74HC4052ADWR2 is a highly reliable and efficient solution for complex signal switching tasks. Its dual-channel design, wide voltage range, and low power consumption make it an indispensable component for designers aiming to optimize performance and minimize board space in modern analog and mixed-signal systems.

Keywords:

1. Analog Multiplexer

2. Signal Routing

3. Low On-Resistance

4. Wide Voltage Range

5. CMOS Technology