Reference circuit for high speed integrated circuits

Details Reference circuit for high speed integrated circuits Reference circuit for high speed integrated circuits

1992-01-22

1994-04-19

Stephan, Steven L.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

323303, 323907, G05F 316

Patent

active

053049187

ABSTRACT:
A reference circuit for supplying current to high speed logic elements in an integrated circuit supplies less current when circuit temperature decreases while a supply voltage remains constant. The reference circuit supplies less current when the supply voltage increases while circuit temperature remains constant. A resistance with a temperature coefficient, in some embodiments a negative temperature coefficient, is used to decrease current flow in a first leg of an output mirror when temperature decreases. A feedback circuit is used to decrease current flow in the first leg of the output current mirror when the feedback circuit senses an increase in supply voltage by sensing a voltage change on a common control node of the output current mirror. The reference circuit sees many applications including supplying current to logic gates, input/output buffers, and sense amplifiers.

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