Amplifier circuit

Details Amplifier circuit Amplifier circuit

2006-06-27

2006-06-27

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C327S309000, C330S009000

Reexamination Certificate

active

07068090

ABSTRACT:
An amplifier circuit includes a CMOS inverter circuit that eliminates a DC offset caused by variations in characteristics of elements in each manufacturing process and is thus applicable to analog signal processing. The CMOS inverter circuit includes a PMOS transistor, a first NMOS transistor, a second NMOS transistor connected to the first NMOS transistor to increase a source voltage of the first NMOS transistor, and DC offset detecting means for detecting a DC offset and for applying a voltage adjusted so as to reduce the DC offset to a gate of the second NMOS transistor.

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