Cd4051 Spice Model - Link

The CD4051 is a classic CMOS 8-channel analog multiplexer/demultiplexer. Finding an official SPICE model can be tricky because major manufacturers like Texas Instruments

Step 1: Download the Model Download the CD4051B.lib or CD4051.mod file from the TI product page (Section 3.1). cd4051 spice model link

at 15V but increases significantly at lower voltages (hundreds of ohms at 5V). Ensure your model accurately reflects this voltage-dependent resistance. Open Nodes: The CD4051 is a classic CMOS 8-channel analog

For accurate parameter extraction to build a custom model, refer to the Texas Instruments CD4051B Datasheet. CD4051 model - LTspice - Groups.io TI product page → "Tools & software" →

Supply Voltage: The on-resistance of the CD4051 varies significantly with supply. At RONcap R sub cap O cap N end-sub is typically hundreds of ohms, whereas at it drops to approximately

Expected Result:

In OrCAD PSpice

  1. Navigate to PSpice > Edit Simulation Profile > Configuration Files.
  2. Add the path to the .LIB file from your CD4051 SPICE model link to the "Library" category.
  3. Place the part and ensure the Value property calls the subcircuit name (usually CD4051 or MC14051).

Download and Place: Save the .lib file in your project folder or the standard LTspice library path (lib/sub).