bootstrap_switch

Bootstrapped switch simulations for SAR ADC front-ends validate gate-voltage tracking and constant on-resistance by running an ngspice workflow with Python-based tooling. You can simulate NMOS, PMOS, and CMOS variants to generate waveform and Ron plots across input voltage ranges.

On-resistance variation in a bootstrapped switch occurs when the gate voltage fails to track the input voltage accurately. You can analyze this by simulating VGATE = VIN + VDD behavior and plotting Ron across the input range using the provided ngspice and matplotlib workflows.

Yes, you can use ngspice and Python to compare bootstrap NMOS, PMOS, and CMOS switch topologies. The simulations evaluate on-resistance consistency and gate-tracking performance across different input ranges, allowing you to rapidly size transistors and select the best variant for your SAR ADC design.

The best way to size transistors and bootstrap capacitors for a SAR ADC sampling switch is to run end-to-end ngspice simulations across technology nodes. This allows you to evaluate charge injection, clock feedthrough, and on-resistance consistency to optimize the bootstrap capacitor value.

Yes, bootstrapped switch simulation works across 180nm, 45nm, and 22nm technology nodes. You can rapidly size transistors and run end-to-end ngspice simulations to analyze parasitic effects and on-resistance consistency for each specific node.