A Comparison of Minimum Propagation Delay and Unity Power Transfer Frequency of Submicron MOSFETs
01 January 1988
The object of this communication is to demonstrate a relationship between the maximum small-signal frequency of operation and the large-signal propagation delay of a submicron MOSFET. A figure of merit for the MOSFET is derived as the frequency for which the ratio of power transferred between stages of identical amplifiers equals unity. This frequency (unity power transfer frequency) is determined for submicron MOSFETs with resistive loads and is compared with the propagation delay of a ring oscillator comprising identical devices.