Pipelined AD converter capable of switching current driving...

Details Pipelined AD converter capable of switching current driving... Pipelined AD converter capable of switching current driving...

2008-01-22

2008-01-22

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S108000, C327S538000, C327S543000, C323S316000

Reexamination Certificate

active

07321245

ABSTRACT:
A first bias voltage generating circuit which applies a bias voltage to an amplifier circuit of an AD converter has a driving unit and a control unit. The driving unit includes a first bias circuit and a second bias circuit as a plurality of bias circuits which are connected in parallel and have different current driving capabilities. The first bias circuit and the second bias circuit each include a CMOS transistor which is connected directly between a power supply potential and a ground potential, and a switching element which interrupts a feedthrough current. The drains of the CMOS transistors output the bias voltage. The control unit turns on both or either one of the first bias circuit and the second bias circuit, thereby controlling the current driving capability of the entire driving unit.

REFERENCES:
patent: 5159516 (1992-10-01), Fujihira
patent: 5254883 (1993-10-01), Horowitz et al.
patent: 5422588 (1995-06-01), Wynne
patent: 5506541 (1996-04-01), Herndon
patent: 5650672 (1997-07-01), Curd
patent: 5670908 (1997-09-01), Kim et al.
patent: 5796295 (1998-08-01), Sharpe-Geisler
patent: 5898618 (1999-04-01), Lakkapragada et al.
patent: 5940287 (1999-08-01), Brkovic
patent: 6028546 (2000-02-01), Signell et al.
patent: 6163178 (2000-12-01), Stark et al.
patent: 6163184 (2000-12-01), Larsson
patent: 6198337 (2001-03-01), Matsuura
patent: 6211661 (2001-04-01), Eckhardt
patent: 6243278 (2001-06-01), Jacobs
patent: 6548995 (2003-04-01), Li
patent: 6777976 (2004-08-01), Kuge
patent: 6819164 (2004-11-01), Chen
patent: 6850099 (2005-02-01), Klehn et al.
patent: 2002/0060603 (2002-05-01), Kawasumi
patent: 2004/0164788 (2004-08-01), Devin
patent: 2006/0061395 (2006-03-01), Noto et al.
patent: 1-137629 (1989-09-01), None
patent: 5-17712 (1993-01-01), None
patent: 9-69776 (1997-03-01), None
patent: 11-085113 (1999-03-01), None
Chinese Office Action for Application No. 20040031790.6; Issuing Date: Nov. 11, 2005; Sanyo Electric Co., Ltd.
Japanese Office Action issued on corresponding Japanese Patent Application No. JP 2004-060507, dated Dec. 5, 2006.
Japanese Office Action, with English Translation, issued in corresponding Japanese Patent Application No. 2004-060507, dated on Sep. 11, 2007.

Affiliated with

Also associated with

Rating

Pipelined AD converter capable of switching current driving... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pipelined AD converter capable of switching current driving..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipelined AD converter capable of switching current driving... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2808818