Schmitt trigger input stage

Details Schmitt trigger input stage Schmitt trigger input stage

1998-05-27

2000-07-18

Tokar, Michael

Electronic digital logic circuitry

Interface

Logic level shifting

326 71, 326119, 326121, H03K 190175, H03K 19094

Patent

active

060912642

ABSTRACT:
A circuit and a method are disclosed for a Schmitt trigger stage which converts transistor-transistor logic (TTL) into metal oxide semiconductor (MOS) logic signal levels using all MOS devices. The circuit reduces the standby current of the n-channel transistor of the input section of the Schmitt trigger stage by adding a MOS diode to the bottom the input section. When higher than normal supply voltages are used, the standby current of the p-channel transistor of the input section can be reduced by adding a MOS diode to the top of the input section. In addition, a small MOS transistor, connected across the output Schmitt trigger inverter, eliminates leakage currents in that inverter.

REFERENCES:
patent: 4437025 (1984-03-01), Liu et al.
patent: 4568844 (1986-02-01), O'Connor
patent: 4612461 (1986-09-01), Sood
patent: 5036226 (1991-07-01), Tonnu et al.
patent: 5144167 (1992-09-01), McClintock
patent: 5386153 (1995-01-01), Voss et al.
patent: 5455520 (1995-10-01), Honda
patent: 5578941 (1996-11-01), Sher et al.
patent: 5612635 (1997-03-01), Madhu et al.
Floyd, "Electronic Devices", Charles E. Merrill Publishing Company, pp. 605-608, 1984.

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