CD4051B CMOS Single 8-Channel Analog Multiplexer/Demultiplexer IC

Brand: Texas Instruments
Model: CD4051BE
SKU Code: 63-741-4051
Availability: 197
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The CD4051B analog multiplexers are digitally-controlled analog switches having low ON impedance and very low OFF leakage current.
The CD4051B is a single 8-Channel multiplexer having three binary control inputs, A, B, and C, and an inhibit input. The three binary signals select 1 of 8 channels to be turned on, and connect one of the 8 inputs to the output.

When these devices are used as demultiplexers, the "CHANNEL IN/OUT" terminals are the outputs and the "COMMON OUT/IN" terminals are the inputs.


  • Wide Range of Digital and Analog Signal Levels
    • Digital...3V to 20V
    • Analog...≤20VP-P
  • Low ON Resistance, 125Ω (Typ) Over 15VP-P
    Signal Input Range for VDD–VEE = 18V
  • High OFF Resistance, Channel Leakage of ±100pA (Typ) at VDD–VEE = 18V
  • Logic-Level Conversion for Digital Addressing Signals of 3V to 20V (VDD–VSS = 3V to 20V) to Switch Analog Signals to 20VP-P (VDD–VEE = 20V)
  • Matched Switch Characteristics, rON = 5Ω (Typ) for VDD–VEE = 15V
  • Very Low Quiescent Power Dissipation Under All Digital-Control Input and Supply Conditions, 0.2µW (Typ) at VDD–VSS = VDD–VEE = 10V
  • Binary Address Decoding on Chip
  • 5V, 10V and 15V Parametric Ratings
  • 10% Tested for Quiescent Current at 20V
  • Maximum Input Current of 1µA at 18V Over Full Package
    Temperature Range, 100nA at 18V and 25°C
  • Break-Before-Make Switching Eliminates Channel Overlap




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