Simulation Hacks
Table of Contents
1. Differential signals testbench
Sometimes we need to create a differential signal testbench (i.e. for a differential amplifier). The following structure
generates differential signal with a given amplitude and frequency:
Differential signal generator
V0 source defines the offset of the signal (common-mode), and V1 denotes the signal shape, amplitude and frequency. Voltage-controlled current sources E0 and E1 with the gains of -1 and 1 define the positive and the negative outputs, respectively. The results of the simulation of the following structure are shown below:
Differential signal generator simulation