File Types

DR. SPICE Input Files

DR. SPICE accepts the following input file formats:

.cir - The .cir file is the circuit file. It contains the circuit to be simulated and the simulation parameters. This file can be typed manually with a text editor or created automatically by a schematic capture program
..lib - The .lib file is an external file that contains one or more device models. This file is referenced by a library statement in the circuit file.
.include - The .include file is a file whose path name is specified in the circuit file in a .INCLUDE Include statement, and the contents read–in when the circuit file is processed by DR. SPICE. For example, this file may have the form device.lib, containing model parameters for a class of circuits, and it is read in as a model library. (Note that .include is not part of the file name.).
.loadbias - The .loadbias file contains the bias point node voltages produced by a circuit simulation and saved as a .savebias Loadbias output file. This file provides input for successive simulations.

DR. SPICE Output Files

DR. SPICE can produce the following output file formats:

.out - This is the SPICE file format for event reporting. Unlike a CSDF file, which contains actual simulation data, this file contains interpolated results.
.savebias - This file contains bias point node voltages produced during circuit simulation, which become input (see .loadbias) for successive simulations.
.txt (CSDF) - An ASCII file containing the actual simulation results from a DR. SPICE simulation. Common Simulator Data Format (CSDF) is the industry standard file format for storing analog simulation results.
.bxt - A binary version of the .txt (CSDF) file.
.raw - Yet another format for simulation results based on the Berkeley standard SPICE binary file format.
.dat- Our proprietary waveform database format.This is the default that DR. SPICE uses to internally save waveforms during a simulation session. It's primary advantage is high speed access.