Low power voltage reference circuit

Details Low power voltage reference circuit Low power voltage reference circuit

2011-08-09

2011-08-09

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S541000

Reexamination Certificate

active

07994848

ABSTRACT:
An embodiment of the present invention is directed to a low power voltage reference circuit. The circuit includes a first circuit for generating a PTAT voltage without using an operational amplifier. The circuit also includes a second circuit for generating the reference voltage. The first and the second circuit do not utilize a resistor.

REFERENCES:
patent: 7180349 (2007-02-01), Leifso et al.
patent: 7321225 (2008-01-01), Garlapati et al.
patent: 2006/0103455 (2006-05-01), Zhang et al.
patent: 10143264 (1998-05-01), None
Cypress Semiconductor “CMOS Current Reference Without Resistance,” Henri J. Oguey dated Jul. 7, 1997; 4 pages.
Liu et al., “Process and Temperature Performance of a CMOS Beta-multiplier Voltage Reference”, Midwest Symposium on Systems and Circuits, Aug. 09-12, 1998, South Bend, Indiana; 4 pages.
Giustolisi, “A Low-Voltage Low-Power Voltage Reference Based on Sub threshold MOSFETs”, IEEE J. Solid-State Circuits, vol. 38, No. 1 p. 151-154, Jan. 2003; 4 pages.

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