CD4051BD 8-Channel Analog Multiplexer/Demultiplexer IC – SOIC-16

The CD4051BD is a versatile 8-channel analog multiplexer/demultiplexer designed for analog signal routing, sensor selection, and data acquisition systems. Compatible with industry-standard 4051 pinouts, this device provides a bidirectional analog switch with low ON resistance and excellent linearity, packaged in a compact SOIC-16 surface-mount form.

Supporting single-supply operation from 3V to 20V as well as dual-supply operation (±2.5V to ±10V), the CD4051BD is suitable for both low-voltage and high-voltage analog signal paths. It handles up to 20V peak-to-peak analog signals, making it ideal for audio, instrumentation, sensor interfaces, and mixed-signal circuits.

Built-in break-before-make switching prevents channel overlap, and the inhibit input allows all channels to be turned off when needed. With ON resistance typically 125Ω at 15V, extremely low quiescent power dissipation, and reliable CMOS performance, this IC is widely used in industrial, consumer, and instrumentation applications.

Key Specifications:

• Part Number: CD4051BD

• Function: 8-channel analog multiplexer/demultiplexer

• Signal Type: Bidirectional, analog

• Supply Voltage (single): 3V to 20V

• Supply Voltage (dual): ±2.5V to ±10V

• Analog Signal Range: Up to 20V peak-to-peak

• ON Resistance: ~125Ω @ VDD = 15V

• Features:
  – Break-before-make switching
  – Inhibit (EN) input
  – Low quiescent dissipation (~0.2 µW)
  – CMOS-level switching

• Package: SOIC-16 (surface-mount)

Package Includes:
1 x CD4051BD 8-Channel Analog Multiplexer/Demultiplexer IC

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