Low-voltage band-gap reference voltage bias circuit

Details Low-voltage band-gap reference voltage bias circuit Low-voltage band-gap reference voltage bias circuit

2007-11-27

2010-10-05

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

C327S538000

Reexamination Certificate

active

07808305

ABSTRACT:
A low-voltage band-gap reference voltage bias circuit is provided. In the low-voltage band-gap reference voltage bias circuit, a proportional-to-absolute temperature (PTAT) current is copied to two nodes, respectively, to generate a first voltage having a negative slope with respect to temperature variation, and a second voltage having a positive slope with respect to temperature variation, and first and second elements having high impedances are serially connected to each other between the two nodes, such that the sum of the negative slope of the first voltage and the positive slope of the second voltage is zero and an average voltage between the two nodes is extracted to output the extracted result as a reference voltage. Accordingly, a stable reference voltage of 1V or lower regardless of a power supply voltage and temperature variation can be supplied.

REFERENCES:
patent: 4375598 (1983-03-01), Sakai
patent: 4820967 (1989-04-01), Kertis et al.
patent: 6788041 (2004-09-01), Gheorghe et al.
patent: 6795343 (2004-09-01), Marotta et al.
patent: 6828847 (2004-12-01), Marinca
patent: 6879141 (2005-04-01), Ho
patent: 6995587 (2006-02-01), Xi
patent: 06-309051 (1994-11-01), None
patent: 2005-128939 (2005-05-01), None
patent: 2006-065439 (2006-03-01), None
patent: 1019940023014 (1994-10-01), None
patent: 1999-0005917 (1999-01-01), None
patent: 2019990011564 (1999-03-01), None
patent: 1020000043624 (2000-07-01), None
patent: 1020010010741 (2001-02-01), None
patent: 1020040004023 (2004-01-01), None
patent: 1020060053414 (2006-05-01), None
patent: WO 98/48334 (1998-10-01), None
Yeong-Tsair Lin, et al; “A Low Voltage CMOS Bandgap Reference;” IEEE-NEWCAS Conference, 2005. The 3rdInternational 19-22 2005, pp. 227-230.
Ming-Dou Ker, et al; “New Curvature-Compensation Technique for CMOS Bandgap Reference with Sub-1-V Operation;” Circuits and systems II: Express Briefs, IEEE Transactions on Digital Signal Processing, vol. 53, Issue 8, Aug. 2006 pp. 667-671.

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