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Output pin G OUT OUT 0 OUT 0
But this lacks analog accuracy.
However, for faster simulations where absolute precision regarding distortion is secondary, a behavioral approach is often used. This might involve a voltage-controlled resistor or a switch element (SW) whose resistance is governed by a mathematical function of the input voltage. While computationally lighter, this method risks missing subtle capacitive coupling effects. cd4051 spice model
The heart of the CD4051 model is the analog switch. In the physical silicon, this is implemented using a CMOS transmission gate—a parallel combination of an NMOS and a PMOS transistor. This configuration allows the switch to pass signals across the full voltage range ($V_DD$ to $V_EE$), mitigating the threshold voltage drop associated with single-transistor switches. Output pin G OUT OUT 0 OUT 0
Non-linearity : The "on" resistance changes based on the input voltage relative to the power supply rails. This configuration allows the switch to pass signals
