Digitally controlled variable offset amplifier

Digitally controlled variable transconductance amplifier system

Digitally programmable differential attenuator with tracking com

Digitally programmable transconductance amplifier and...

Digitally switched gain amplifier for digitally controlled autom

Direct coupling type power amplifier circuit

Direct current offset compensating circuit of an audio system

Direct-coupled amplifier circuit with DC output offset regulatio

Direct-coupled amplifier with output offset regulation

Direct-coupled wideband amplifier

Distortion cancellation amplifier system

Distortion compensated cross-coupled differential amplifier circ

Distortion improvement in amplifiers

Distortion-compensated differential circuit

Double pass band amplifier circuit and a radio frequency...

Double-cascode two-stage operational amplifier

Double-cascode two-stage operational amplifier

Double-folded cascode operational amplifier

Drive circuit

Driven-common electronic amplifier