Cd4051 Spice Model [patched] -

Force 1mA through the switch from COM to In0, measure V(COM,IN0) ICOMM 0 COM DC 1m

file, you don't necessarily need a custom symbol. LTspice can auto-generate one: file directly in LTspice. Right-click the line (e.g., cd4051 spice model

Over the years, three main categories of CD4051 SPICE models have emerged. Each has trade-offs. Force 1mA through the switch from COM to

The CD4051 is a classic CMOS 8-channel analog multiplexer/demultiplexer that has survived decades of design cycles. But when it comes to modern simulation, finding and using a reliable CD4051 SPICE model Over the years

library often found in LTspice user groups. It contains subcircuits for the

This is the modern "gold standard." It uses mathematical equations and controlled sources to mimic the behavior of the CD4051 without simulating the internal transistor physics.