Method and apparatus for common-mode level shifting

Details Method and apparatus for common-mode level shifting Method and apparatus for common-mode level shifting

2005-08-02

2005-08-02

Choe, Henry (Department: 2817)

Amplifiers

Sum and difference amplifiers

C330S258000

Reexamination Certificate

active

06924696

ABSTRACT:
A circuit in accordance with the invention comprises a differential amplifier; and a direct current (DC) source coupled with the differential amplifier. The DC source generates a direct current that is communicated in substantially predetermined portions to multiple inverting input terminals of the differential amplifier. The direct current is applied so as to shift a common-mode voltage of electrical signals that are processed by the differential amplifier. The shift in the common-mode voltage is proportional to the direct current generated by the DC source.

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patent: 2001/0021813 (2001-09-01), Yonce
PCT International Search Report for Honeywell International, Inc., PCT/US 03/23390, dated Jul. 15, 2004.

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