Amplifier circuit having an extended Wilson current-mirror...

Amplifier circuit having an operation point maintaining input an

Amplifier circuit having controllable gain

Amplifier circuit having dynamically biased configuration

Amplifier circuit having first amplifying section and second...

Amplifier circuit having gain control

Amplifier circuit having high linearity for cancelling third ord

Amplifier circuit having impedance matching circuit

Amplifier circuit having improved linearity and frequency...

Amplifier circuit having nagative feedback loop for self-bias

Amplifier circuit having signal detection function

Amplifier circuit having two negative feedback circuits

Amplifier circuit including compensation circuitry for canceling

Amplifier circuit more immune to fluctuation of reference voltag

Amplifier circuit operable at low power source voltage

Amplifier circuit operating with single bias supply and less sen

Amplifier circuit suitable for use as an active filter circuit

Amplifier circuit suitable for use in a radiotelephone

Amplifier circuit using a P channel MOS transistor

Amplifier circuit using feedback load