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switch output of ADG1211 is not working properly on LTSpice

Thread Summary

The user encountered issues with the ADG1211 switch controlled by a PWM signal, resulting in a non-smooth output signal. The final answer suggests that moving the resistor (R32) from series to the output-to-ground position, as shown in the datasheet, resolves the sine artifacts in the off time. The user provided their LTSpice .asc file for further investigation, and the support team is working on additional troubleshooting.
AI Generated Content
Category: Software
Product Number: ADG1211
Software Version: LTSpice 24.0.0.9

Input signal goes through the ADG1211 switch control by PWM signal but output is not as expected.Here is the input signal,

Input signal

Here is the output signal, Output signal is not smooth

Output signal

And here is the PWM1 signal,

PWM signal

Part circuit diagram on the LT Spice,

part circuit

Edit Notes

Added the part number ADG1211 to title.
[edited by: EarlJohn at 6:39 PM (GMT -5) on 9 Feb 2024]