Analog multistage amplification circuit in the field of sensor

Details Analog multistage amplification circuit in the field of sensor Analog multistage amplification circuit in the field of sensor

2008-03-11

2008-03-11

Mottola, Steven J. (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including gain control means

C330S133000, C330S136000

Reexamination Certificate

active

07342454

ABSTRACT:
An analog multistage amplification circuit for keeping the total gain of analog amplifiers constant while automatically controlling gain of the amplifiers in accordance with an input signal level and improving the S/N ratio of the output signal. The amplification circuit includes an input stage amplifier, an output stage amplifier, a filter connected between the input and output stage amplifiers, an auto gain control circuit for generating a control signal for controlling the gain of the input stage amplifier based on the output signal of the input stage amplifier so that the output signal has a maximum level, and a first gain adjustment circuit for generating an adjustment signal for adjusting the gain of the output stage amplifier so that the total gain of the input and output stage amplifiers is kept constant in accordance with the control signal of the auto gain control circuit.

REFERENCES:
patent: 5168505 (1992-12-01), Akazawa et al.
patent: 6331802 (2001-12-01), Kim
patent: 6583667 (2003-06-01), Dasgupta et al.
patent: 6750713 (2004-06-01), Wyszynski
patent: 6873208 (2005-03-01), Shinjo et al.
patent: 2005/0083125 (2005-04-01), Masahiko
patent: 1 289 124 (2003-03-01), None
patent: 6-138885 (1994-05-01), None
patent: 11-154839 (1999-06-01), None
patent: 2004-343539 (2004-12-01), None

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