Amplifier with capacitor selection

Details Amplifier with capacitor selection Amplifier with capacitor selection

2007-03-27

2007-03-27

Nguyen, Khanh Van (Department: 2817)

Amplifiers

Signal feedback

Variable impedance in feedback path varied by separate...

C330S051000, C330S254000, C330S282000, C330S284000

Reexamination Certificate

active

10854658

ABSTRACT:
A selectable-gain amplifier selectively couples different capacitors and feedback networks to a gain stage to provide operating characteristics that may include constant bandwidth operation. An interpolated VGA includes pairs of gm cells with cross-connected outputs and may include output cascodes. A dual-rank interpolator utilizes a correction current with a second-order temperature characteristic which may compensate for temperature effects in the transistor ranks.

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Roubik Gregorian,Introduction to CMOS OP-AMPS and Comparators, 1999, pp. 100-106, 140-148.

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