#Qucs touchstone import simulator

#Qucs touchstone import simulator

This brings up the simulator in interactive mode, and you are presented with a prompt: ****** The ngspice simulator can be invoked from the terminal command line via: $ ngspice You can specify any node name, except gnd (or node 0), which is reserved for the circuit ground. The transistor mn0 has a voltage source vd connected to its drain, and a voltage source vg connected to its source. In this example, we will use this netlist: MOSFET characterization netlist. The netlist describes the devices, their parameters, and how they are interconnected.

To specify a circuit, we need to create a netlist. The SPICE model file used has been updated to reflect the correct BSIM version (version 4.5). Specifically, we will use the Low Power 45nm Metal Gate / High-K / Strained-Si transistor models, with a nominal supply voltage of 1.1V. In this example, we will use the predictive transistor models (PTM) from the Nanoscale Integration and Modeling (NIMO) Group at Arizona State University. Step 1:įirst, we need a transistor model file.

Let’s plot the transistor characteristics in the interactive mode.

Once you have ngspice installed, you can run it interactively, or in batch mode. For a quick introduction to ngspice, you can visit their website, or you can proceed to the download page.