Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Compensation for variations in external physical values
Patent
1997-10-03
1999-11-02
Le, Dinh T.
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Compensation for variations in external physical values
327509, 327512, H01L 3500
Patent
active
059778130
ABSTRACT:
A monitor within an integrated circuit is disclosed for providing a signal which is proportional to an integrated circuits operating environment. A differential gain cell within the integrated circuit is biased with a bias circuit. A first environment sensitive circuit provides a signal to the first input of the differential gain cell and a second environment sensitive circuit provides a signal with a known relationship to the first environment sensitive signal to the second input of the differential gain cell. The signal produced by the second environment sensitive circuit has a known operational relationship with the signal produced by the first environment sensitive circuit such that changes in the integrated circuit operating environment produce a deviation between the two signals. The differential gain cell in response to the signal received on its first input and second input produces a signal which is responsive to the operating environment of the integrated circuit.
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Dillon Andrew J.
International Business Machines - Corporation
Le Dinh T.
Musgrove Jack V.
Salys Casimer K.
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