220106 ⎘
Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers the IC comprising one or more active resistors by feedback
Integrated Circuit Amplifier with Gate Tunneling Resistor
#2Pseudo-resistor structure, a closed-loop operational amplifier circuit and a bio-potential sensor
#3Semiconductor device having resistors with a biased substrate voltage