January 2021

Primitive of the Month

probe_dc

This primitive lets you measure the DC transfer function of your circuit model in a single simulation run.

Tip of the Month

Simulating the DC transfer characteristics of a circuit model

Learn how to perform DC analysis on your model and plot its DC transfer function using the new 'probe_dc' primitive and 'meas_dc' script.

Model of the Month

Successive approximation register (SAR) ADC

Check out how to model a SAR ADC made of a charge-redistribution DAC and successive approximation FSM.

XMODEL Release Updates

2021.01 Release

This release introduces 'probe_dc' primitive, adds multiprocessing support for UDMs, and generates parameterized symbol views for Verilog modules with variable port widths.

Latest Issues

December 2025

Season's Greetings, Checking a Clocked Comparator's Correct Output, and More

November 2025

Checking the Settling of an Analog Signal, Handling Inherited Nets with Legacy SPICE Netlisters, and More

October 2025

A UVM Testbench for Worst-Case Analysis Using Bayesian Optimization and More

September 2025

XMODEL at DVCon Europe, Evaluating Transceivers with Multi-Drop Channels, and More

August 2025

Modeling Variations in ReRAMs, Supporting RNM Nettypes, and More