IC Analog Multiplexer/Demultiplexer CD4051

AED 8.30



The IC Analog Multiplexer/Demultiplexer CD4051 is a versatile integrated circuit designed to facilitate the selection and routing of analog or digital signals among multiple input channels. It is a member of the CD4000 series of CMOS logic ICs, known for its low power consumption and wide voltage range compatibility. The CD4051 is commonly used in various applications requiring signal multiplexing, demultiplexing, or analog signal switching.



  • Multiplexer/Demultiplexer Functionality: The CD4051 serves as both an analog and digital multiplexer/demultiplexer, allowing the selection of one input from multiple channels for routing to a common output.
  • Input Channels: It features eight input channels (Y0 to Y7) that can be individually selected using three digital control lines (A, B, and C).
  • Wide Input Voltage Range: The CD4051 can accommodate a wide range of input voltages, typically operating between -VSS (digital 3 – 15V, analog to 15Vp-p) and +VDD (positive supply voltage).
  • Low ON-Resistance: With low ON-resistance characteristics, it minimizes signal attenuation and distortion when passing analog signals through the multiplexer.
  • Low Power Consumption: Designed for low power operation, making it suitable for battery-powered or energy-efficient applications.
  • Digital Control: The multiplexer is controlled through the digital select lines (A, B, and C), simplifying the process of channel selection.



  • Wide range of digital and analog signal levels: digital 3 – 15V, analog to 15Vp-p
  • Low “ON” resistance: 80Ω (typ.) over entire 15Vp-p signal-input range for VDD − VEE = 15V
  • High “OFF” resistance:
    • channel leakage of ±10 pA (typ.) at VDD − VEE = 10V
  • Logic-level conversion for digital addressing signals of
    • 3 – 15V (VDD − VSS = 3 – 15V) to switch analog signals
    • to 15 Vp-p (VDD − VEE = 15V)
  • Matched switch characteristics:
    • ∆RON = 5Ω (typ.) for VDD − VEE = 15V
  • Very low quiescent power dissipation under all
    • digital-control input and supply conditions:
    • 1 µ W (typ.) at VDD − VSS = VDD − VEE = 10V
  • Binary address decoding on chip