Low voltage input circuit with high voltage tolerance...

Details Low voltage input circuit with high voltage tolerance... Low voltage input circuit with high voltage tolerance...

2006-08-15

2006-08-15

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C326S058000

Reexamination Certificate

active

07091755

ABSTRACT:
An input circuit includes a first buffer having a first power terminal coupled to a first supply voltage, a second power terminal coupled to ground potential, an input to receive an input signal, and an output to generate a first output signal, a second buffer having a first terminal coupled to a second supply voltage, a second terminal coupled to a bias node, an input to receive the input signal, and an output to generate a second output signal, and a control circuit configured to selectively connect the bias node either to the second supply voltage or to ground potential in response to an enable signal.

REFERENCES:
patent: 4019178 (1977-04-01), Hashimoto et al.
patent: 6107829 (2000-08-01), Martin
patent: 6249169 (2001-06-01), Okada
patent: 6559675 (2003-05-01), Koo
patent: 6693469 (2004-02-01), Prodanov
patent: 6867445 (2005-03-01), Jang

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