Title: onsemi MC14053BCPG Triple 2-Channel Analog Multiplexer/Demultiplexer Datasheet and Application Overview
The onsemi MC14053BCPG is a member of the 4000 series CMOS logic family, renowned for its robust performance and versatility in both analog and digital signal routing applications. This integrated circuit (IC) is a triple 2-channel analog multiplexer/demultiplexer, meaning it contains three independent single-pole, double-throw (SPDT) switches within a single 16-pin package. Each switch can selectively connect one of two input signals to a common output, functioning equally effectively as a multiplexer (mux) to combine signals or a demultiplexer (demux) to distribute them.
A key feature of the MC14053BCPG is its capability to handle analog signals across a wide voltage range. The device supports analog input signals that can swing from the negative supply rail (VEE) up to the positive supply rail (VDD), a characteristic often referred to as "rail-to-rail" switching. This makes it exceptionally suitable for processing audio signals, sensor data, and other analog waveforms in systems where the supply voltages may be asymmetric, such as +5V and -5V. The low "on" resistance (typically 270Ω at VDD = 15V) and minimal change in this resistance over the input voltage range ensure minimal signal distortion.
From a digital control perspective, the device is straightforward to operate. The selection of which channel is connected for each switch is determined by three binary control inputs: A, B, and C. An inhibit (INH) pin is provided to disable all switches simultaneously, forcing all common outputs into a high-impedance state, which is crucial for power saving or bus sharing in complex systems. Constructed with CMOS technology, the IC offers very high input impedance, drawing negligible current from the control circuitry, and operates over a wide supply voltage range from 3V to 18V.
Typical applications highlighted in the datasheet are extensive. They include:
Analog and Digital Signal Multiplexing/Demultiplexing
Data Routing in Audio and Video Systems
Analog-to-Digital (A/D) and Digital-to-Analog (D/A) Conversion Systems
Sample and Hold Circuits
Programmable Gain Amplifiers
General-Purpose Signal Gating and Switching
The MC14053BCPG is offered in a PDIP-16 package, making it suitable for prototyping and through-hole PCB assembly. Designers are advised to carefully consider the datasheet specifications for power dissipation, switch transition times, and crosstalk between channels when designing for high-frequency or high-precision applications.
ICGOODFIND: The onsemi MC14053BCPG stands as a highly versatile and reliable solution for a multitude of signal switching tasks. Its triple SPDT configuration, true rail-to-rail analog signal handling, and wide operating voltage range make it a fundamental component for engineers designing mixed-signal systems in industrial, automotive, and consumer electronics. Its simplicity and robustness, backed by the proven 4000-series CMOS technology, ensure its continued relevance in both new designs and legacy equipment maintenance.
Keywords: Analog Multiplexer, CMOS Logic, Signal Switching, Rail-to-Rail, SPDT Switch.
