Circuit for increasing the unity gain crossover frequency of...

Details Circuit for increasing the unity gain crossover frequency of... Circuit for increasing the unity gain crossover frequency of...

2006-12-26

2006-12-26

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including plural stages cascaded

C330S288000, C330S310000, C330S098000

Reexamination Certificate

active

07154340

ABSTRACT:
A circuit having an input amplifier and a second amplifier that provides the circuit with a unity gain crossover frequency that is higher than a unity gain crossover frequency of the input amplifier is provided. The circuit has a control input coupled to a control input of the input amplifier and also has a first current connection and a second current connection. The circuit further includes an additional amplifier that is connected in series with the second amplifier and is controlled by the input amplifier.

REFERENCES:
patent: 4586004 (1986-04-01), Valdez
patent: 6114913 (2000-09-01), Entrikin
patent: 6724257 (2004-04-01), Wrathall
patent: 6861909 (2005-03-01), Kobayashi
patent: 7091788 (2006-08-01), Glass et al.
patent: 35 14 052 (1986-10-01), None
patent: 101 28 570 (2002-01-01), None
Tietze, Ulrich, Schenk, Christoph: “Halbleiter-Schaltungstechnik,” 9thedition, Berlin, u.a., Springer-Verlag, 1990, pp. 64, 65, and 492.

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