Title:
HIGH-SPEED DIFFERENTIAL COMPARATOR CIRCUITRY WITH ACCURATELY ADJUSTABLE THRESHOLD
Document Type and Number:
WIPO Patent Application WO/2011/112579
Kind Code:
A3
Abstract:
A high-speed differential comparator circuit is provided with an accurately adjustable threshold voltage. Differential reference voltage signals are provided to control the threshold voltage of the comparator. The common mode voltage of the reference signals preferably tracks the common mode voltage of the differential high-speed serial data signal being processed by the comparator circuit.
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Inventors:
DING WEIQI (US)
PAN MINGDE (US)
PAN MINGDE (US)
Application Number:
PCT/US2011/027543
Publication Date:
December 22, 2011
Filing Date:
March 08, 2011
Export Citation:
Assignee:
ALTERA CORP (US)
DING WEIQI (US)
PAN MINGDE (US)
DING WEIQI (US)
PAN MINGDE (US)
International Classes:
H03K3/023; H03K5/08
Foreign References:
| US20090153199A1 | 2009-06-18 | |||
| US20050035788A1 | 2005-02-17 | |||
| US20020167339A1 | 2002-11-14 | |||
| US20020041197A1 | 2002-04-11 | |||
| US20060044023A1 | 2006-03-02 |
Other References:
See also references of EP 2545649A4
Attorney, Agent or Firm:
INGERMAN, Jeffrey H. (1211 Avenue of the AmericasNew York, New York, US)
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