Patent ID: 6211729
Filing Date: 2001-04-03
Classification: H03F

Abstract:
An amplifier/switch circuit comprising:a first circuit input;a second circuit input;a circuit output;a first transistor having a gate, a source and a drain, the gate being connected to the first circuit input, the source being connected to the second circuit input and the drain being connected to the circuit output;a second transistor having a gate, a source and a drain;a third transistor having a gate, a source and a drain, the source of the second transistor being connected to the source of the third transistor and the drain of the third transistor being connected to the circuit output;a first capacitance being connected between the gate of the first transistor and the drain of the second transistor;a first resistance being connected between the gate of the second transistor and the second circuit input; anda second resistance being connected between the gate of the third transistor and the second circuit input;wherein voltage on the second circuit input is varied to turn the second transistor and the third transistor on and off.