Comments on "Silicon MESFET digital circuit techniques"

See also ibid., vol.SC-16, p.578-84 (Oct. 1981). It is shown that the design criterion for MESFET ED logic assumed by Hartgring et al.-that the low voltage level must be less than /SUP 1///SUB 3/ V/SUB T/-is overly restrictive, and that the technology is more tolerant of V/SUB T/ variation than would be surmised from such an assumption. Data for the operation of a MESFET ED logic divide-by-four circuit over a temperature range from 25/spl deg/C to 145/spl deg/C confirms the wider operating margin of this technology.