Title :
An analytical model for the determination of the transient response of CML and ECL gates
Author :
Ghannam, Moustafa Y. ; Mertens, Robert P. ; Van Overstraeten, Roger J.
Author_Institution :
Interuniv. Microelectron. Center, Leuven, Belgium
fDate :
1/1/1990 12:00:00 AM
Abstract :
In the analysis, the full-range transient response of the gate is calculated using closed-form analytical expressions. This is achieved by generalizing and improving the method used by J.M.C. Stork (IEDM Tech. Dig., p.550, 1988) for the determination of the propagation delay. The proposed model is applicable at low-level injection, unity fan-in, and unity fan-out. The delays related to the transit time, the load, and the junction capacitances are considered. For ECL gates, the emitter follower delay is also included. Various delays (risetime, propagation delay, etc.) calculated using the proposed model agree perfectly with the results of SPICE computer simulations and with the reported experimental values
Keywords :
delays; emitter-coupled logic; logic gates; transient response; CML gates; ECL gates; SPICE computer simulations; analytical model; closed-form analytical expressions; delays; emitter follower delay; junction capacitances; load; low-level injection; propagation delay; transient response; transit time; unity fan-in; unity fan-out; Analytical models; Capacitance; Computer simulation; Delay effects; Delay estimation; Integrated circuit modeling; Logic gates; Propagation delay; Transient response; Voltage;
Journal_Title :
Electron Devices, IEEE Transactions on
