Amplifier with level shifting feedback network

Details Amplifier with level shifting feedback network Amplifier with level shifting feedback network

2007-03-05

2008-10-21

Choe, Henry K (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S253000

Reexamination Certificate

active

07439804

ABSTRACT:
An amplifier circuit includes a low noise first stage and a wide dynamic range second stage. A feedback network coupled between the output of the second stage and the input of the first stage provides DC level shifting of the common mode input voltage. The common mode input voltage is shifted to a value that allows the output of the first stage to be compatible with the input of the second stage.

REFERENCES:
patent: 6218901 (2001-04-01), Lukes et al.
patent: 6794940 (2004-09-01), Suzuki
patent: 7315210 (2008-01-01), Nguyen

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