219389 ⎘
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using BiFET transistors as the active amplifying circuit; Pl types Folded cascode stages
Single ended instrumentation folded cascode amplifier
#2Plural feedback loops instrumentation folded cascode amplifier
#3Wideband voltage translators
#4Switchable high pass configuration and an optical receiver with a switchable high pass configuration