Differential amplifier, reference voltage generating...

Details Differential amplifier, reference voltage generating... Differential amplifier, reference voltage generating...

2009-08-27

2011-10-04

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S009000, C330S261000

Reexamination Certificate

active

08031001

ABSTRACT:
A differential amplifier includes a main differential amplifier circuit that receives a pair of input signals and supplies a pair of output signals based on a difference between the input signals; and a bias control differential amplifier circuit that receives the pair of output signals, controls a control terminal of a current-limiting transistor making up the main differential amplifying circuit based on an offset voltage included in the output signals, and reduces the offset voltage.

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patent: 2006-23920 (2006-01-01), None
patent: 2007-300623 (2007-11-01), None
Banba, H., et al. (1999). “A CMOS Bandgap Reference Circuit with Sub-1-V Operation,” IEEE Journal of Solid-State Circuits 34(5):670-674.

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