Differential amplifier and sampling and holding circuit

Details Differential amplifier and sampling and holding circuit Differential amplifier and sampling and holding circuit

2008-09-15

2009-12-22

Nguyen, Khanh V (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S009000, C330S253000

Reexamination Certificate

active

07636015

ABSTRACT:
Disclosed is a differential amplifier including: first and second transistors each having a first gate, a second gate, a source, and a drain open to a drain side, the first gate and the second gate being controlled independently, a differential input being supplied to between the first gates of the first and second transistors, and the sources of the first and second transistors being connected in common to a first reference potential; first and second load circuits each connected to each of drain sides of the first and second transistors; a detection circuit detecting a common-mode voltage between ones of drain sides of the first and second transistors; and a comparison and amplification circuit amplifying the common-mode voltage in comparison with a second reference potential and supplying an output signal thereof to both of the second gates of the first and second transistors.

REFERENCES:
patent: 6140877 (2000-10-01), Forbes
patent: 6329849 (2001-12-01), Czarnul et al.
patent: 6614301 (2003-09-01), Casper et al.
patent: 6873209 (2005-03-01), Takata et al.
patent: 7276962 (2007-10-01), Tomasi
patent: 2000-148262 (2000-05-01), None
patent: 10-0346989 (2002-07-01), None
patent: 432791 (1998-11-01), None
Mathew et al, CMOS Vertical Multiple Independent Gate Field Effect Transistor (MIGFET), IEEE International SOI Conference, 2004, pp. 187-189.
Koike et al, XDXMOS: A Novel Technique for the Double-Gate MOSFETs Logic Circuits, IEEE Custom Integrated Circuits Conference, 2004, pp. 247-250.

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