Variable gain current amplifier with a feedback loop...

Variable gain device

Variable gain differential amplifier

Variable gain differential amplifier

Variable gain differential amplifier and multiplication circuit

Variable gain differential amplifier and multiplication circuit

Variable gain differential amplifier circuit

Variable gain differential amplifier, and variable...

Variable gain differential amplifier, and variable...

Variable gain low-pass filter

Variable gain mixer-amplifier with fixed DC operating...

Variable gain RF amplifier

Variable gain transconductance amplifier and variable bandwidth

Variable impedance circuit

Variable impedance circuit, variable gain differential...

Variable load impedance gain-controlled amplifier

Variable offset amplifier circuit

Variable resistance gain control integrated circuit

Variable transconductance amplifier

Variable transconductance circuit