CD4051 8-Channel Analog Multiplexer/Demultiplexer

The CD4051 is a versatile CMOS analog multiplexer/demultiplexer designed to provide a simple and efficient solution for routing and selecting analog signals. This single 8-channel device can be used to connect one of eight inputs to a common output, or vice versa, making it ideal for a wide range of applications. The CD4051 is housed in a standard 14-pin Small Outline Integrated Circuit (SOIC) package, ensuring easy integration into various electronic circuits.

Key Features:

• Wide Range of Signal Levels: Supports digital signal levels from 3V to 20V and analog signal levels up to 20V peak-to-peak.
• Low ON Resistance: Typical ON resistance of 125Ω over a 15V signal input range.
• High OFF Resistance: Channel leakage of ±10pA (typical) at VDD – VEE = 18V.
• Logic-Level Conversion: Converts digital addressing signals of 3V to 20V to switch analog signals up to 20V peak-to-peak.
• Low Power Consumption: Very low quiescent power dissipation under all digital-control input and supply conditions.
• Break-Before-Make Switching: Eliminates channel overlap to ensure reliable operation.

Applications:

• Analog and digital multiplexing and demultiplexing
• Analog to digital and digital to analog conversion
• Signal gating
• Factory automation
• Televisions
• Appliances
• Consumer audio
• Programmable logic circuits
• Sensors

Pin Configuration:

• Pin 1 (CH 4): Channel 4 in/out
• Pin 2 (CH 6): Channel 6 in/out
• Pin 3 (COM): Common out/in
• Pin 4 (CH 7): Channel 7 in/out
• Pin 5 (CH 5): Channel 5 in/out
• Pin 6 (INH): Disables all channels
• Pin 7 (VEE): Negative power input
• Pin 8 (VSS): Ground
• Pin 9 (C): Channel select C
• Pin 10 (B): Channel select B
• Pin 11 (A): Channel select A
• Pin 12 (CH 3): Channel 3 in/out
• Pin 13 (CH 0): Channel 0 in/out
• Pin 14 (CH 1): Channel 1 in/out
• Pin 15 (CH 2): Channel 2 in/out
• Pin 16 (VDD): Positive power input

For more detailed information, you can refer to the CD4051 Datasheet.

YouTube Tutorials:

• CD4051 Analog Digital 8 Channel Multiplexer
• CD4051 8 Channel Analog Multiplexer / Demultiplexer - Explained
• Experimenting with the CD4051 Integrated Circuit