Advanced High Accuracy Behavioral Spice Macromodel of Operational Amplifier
نویسندگان
چکیده
In the paper an advanced parameterized analog behavioral SPICE macromodel of operational amplifier is proposed. The following parameters and characteristics of voltage feedback operational amplifier are modeled: frequency dependent input and output impedances; differential and common mode gains and power supply rejection ratios with their tolerances, frequency and temperature dependencies; voltage and current offsets; equivalent input noise and asymmetrical slew rate. The output voltage and current limiting are taken account of, as well. An advantage of the proposed model is that it is parameterized. The user utilizes only the data-sheet specifications. That makes the model easy for use and eliminates the calibration step. The necessary data from the tables and graphics in the specifications are described in details in the paper.
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L. W. Nagel, “SPICE2: A computer program to simulate semiconductor circuits,” Univ. of California Berkeley, Engineering Research Laboratory, UBCIERL-M520, 1975. Analog Devices Inc., “SPICE model library release E,” Norwood, MA, 1991. Comlinear Corp., “Simulation macromodels for Cornlinear current feedback amplifiers,” Applicat. Note OA-09, Fort Collins, CO, 1993. L. Smith and D. H. Sheingold, “...
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