Integrated circuit

Details Integrated circuit Integrated circuit

2007-05-29

2007-05-29

Choe, Henry (Department: 2817)

Amplifiers

With diverse-type art device

With process control system

C330S098000

Reexamination Certificate

active

11138671

ABSTRACT:
An integrated circuit includes a first and a second amplifier circuit each driven by an input signal. The first and second amplifier circuits generate a first and a second control signal on the output side. The control signals are generated independently of one another and drive a first and second controllable resistor of a third amplifier circuit for generating a third control signal. The third control signal is fed back to the first and second amplifier circuits. Depending on the resistance value of the first and second controllable resistors of the third amplifier circuit, an output signal amplified with respect to the input signal is generated at an output terminal of the integrated circuit. The integrated circuit is an input amplifier of an integrated semiconductor memory and permits the input signal to be amplified with a gain independent of a level of the DC component of the input signal.

REFERENCES:
patent: 3377548 (1968-04-01), Newbold
patent: 3530389 (1970-09-01), Hogan et al.
patent: 6784718 (2004-08-01), Okamoto et al.
patent: 6993302 (2006-01-01), Bausov et al.
patent: 2003/0043641 (2003-03-01), Mazumder et al.

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