Title :
A new physical timing model for bipolar NTL circuits
Author :
Wu, Chug-Yu ; Wu, Tain Shun
Author_Institution :
Nat. Chiao Tung Univ., Hsin-Chu, Taiwan
Abstract :
Based on current-domain large-signal equivalent circuits, a new physical timing model for bipolar nonthreshold logic (NTL) circuits is developed. Through extensive comparisons with SPICE simulation results, it is found that the maximum error is 25% for the NTL inverters with different operating currents, capacitance loads, device parameters, and input excitation waveforms not deviating much from characteristic waveforms. Moreover, the consumed CPU time and memory in calculations are much less than those in full transient simulations
Keywords :
bipolar integrated circuits; circuit analysis computing; equivalent circuits; integrated logic circuits; logic gates; NTL inverters; SPICE simulation; bipolar nonthreshold logic circuits; capacitance loads; current-domain large-signal equivalent circuits; input excitation waveforms; operating currents; physical timing model; Circuit simulation; Design optimization; Equivalent circuits; Inverters; Logic circuits; Logic devices; Logic gates; SPICE; Timing; Voltage;
Conference_Titel :
Bipolar Circuits and Technology Meeting, 1988., Proceedings of the 1988
Conference_Location :
Minneapolis, MN
DOI :
10.1109/BIPOL.1988.51084
