Title :
A table lookup FET model for accurate analog circuit simulation
Author :
Rofougaran, Ahmadreza ; Abidi, Asad A.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
2/1/1993 12:00:00 AM
Abstract :
A table-based approach to the empirical modeling off FETs in circuit simulators addresses the specific requirements of analog circuit design, such as accuracy in reproducing small-signal parameters, large signal nonlinearities, subthreshold characteristics, substrate effects, short-channel effects, and voltage dependent capacitances. Efficiencies in storage and computation brought about by this model in SPICE considerably speed up circuit simulation, compared to an analytical model offering similar accuracy. Methods are described to extract the table entries. The model is not specific to any one type of device or technology, although examples are given of how it may be simplified by using physical insights into device operation
Keywords :
SPICE; analogue circuits; circuit analysis computing; field effect transistors; linear integrated circuits; semiconductor device models; table lookup; SPICE; analog circuit simulation; empirical modeling; large signal nonlinearities; short-channel effects; small-signal parameters; substrate effects; subthreshold characteristics; table lookup FET model; voltage dependent capacitances; Analog circuits; Capacitance; Circuit analysis computing; Circuit simulation; Computational modeling; FETs; SPICE; Signal design; Table lookup; Voltage;
Journal_Title :
Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on
