Circuit arrangement for voltage selection, and method for...

Details Circuit arrangement for voltage selection, and method for... Circuit arrangement for voltage selection, and method for...

2006-12-07

2008-10-28

Tran, Anh Q (Department: 2819)

Electronic digital logic circuitry

Interface

Logic level shifting

C326S080000, C326S081000

Reexamination Certificate

active

07443199

ABSTRACT:
The circuit arrangement includes a first and a second input to supply a first and a second supply voltage and also an output. The circuit arrangement includes a first transistor, which is connected between the first input and the output, and a second transistor, which is connected between the second input and the output. The first and second transistors include a respective substrate connection coupled to a supply connection. In addition, the circuit arrangement includes a third and a fourth transistor, which are connected between the first input or the second input and the supply connection, and also a control circuit, which is coupled to the first and second inputs and to control connections of the first and second transistors.

REFERENCES:
patent: 5341034 (1994-08-01), Matthews
patent: 5929615 (1999-07-01), D'Angelo et al.
patent: 6774704 (2004-08-01), Kushnarenko
patent: 6847249 (2005-01-01), Brokaw
patent: 6879134 (2005-04-01), Stanesti et al.
“Dual 2.6A, 2.5V to 5.5V, Ideal Diodes in 3mm×3mm DFN”, Datasheet LT4413, Linear Technology Corporation, reprinted from the Internet at:, http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1142,C1079,P7889,D5398, 12 pgs, no date.
“5.5-V I/O in a 2.5-V 0.25- μm CMOS Technology”, Anne-Johan Annema, Govert J.G.M. Geelen and Peter C. De Jong, IEEE Journal of Solid-State Circuits, vol. 36, No. 3, Mar. 2001, pp. 528-538.

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