Variable gain amplifier and filter circuit

Variable gain amplifier and high-frequency signal receiving...

Variable gain amplifier capable of functioning at low power...

Variable gain amplifier circuit

Variable gain amplifier circuit

Variable gain amplifier circuit

Variable gain amplifier circuit

Variable gain amplifier circuit

Variable gain amplifier circuit and gain control method

Variable gain amplifier circuit and gain control method

Variable gain amplifier circuit and gain control method thereof

Variable gain amplifier circuit and its use in an automatic gain

Variable gain amplifier circuit using variable impedance...

Variable gain amplifier circuit with reduced power requirements

Variable gain amplifier for high frequency band using...

Variable gain amplifier for low supply voltage systems

Variable gain amplifier for use in communications

Variable gain amplifier having a maximum attenuation-factor...

Variable gain amplifier having improved gain slope...

Variable gain amplifier having linear-in-dB gain characteristic