Negative charge pump circuit

Details Negative charge pump circuit Negative charge pump circuit

1997-02-28

1999-06-22

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327536, 327589, 327390, 363 59, 363 60, G05F 110

Patent

active

059146320

ABSTRACT:
A charge pump circuit that is capable of generating a voltage that is greater in absolute magnitude than that of the substrate voltage Vsub in circuits where the substrate cannot be pumped to a voltage that is greater in absolute magnitude than Vsub is disclosed. Various innovative circuit techniques are used to implement a, for example, negative charge pump circuit in an N-well CMOS process with all PMOS transistors. The negative charge pump circuit according to the present invention can reliably drive on-chip transmission line termination switches.

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