Patent ID: 9473163
Filing Date: 2016-10-18
CPC Classification: H03F,H03M

Claim Text:
1. A preamplifier circuit, for generating a first amplifier output signal and a second amplifier output signal in response to a first input signal, a second input signal, and an enable signal, the preamplifier circuit comprising: a first transistor, having a control terminal coupled to the enable signal, a first terminal coupled to a power supply line, and a second terminal; a second transistor, having a control terminal coupled to the enable signal, a first terminal coupled to a ground line, and a second terminal; a third transistor, having a control terminal coupled to the first input signal, a first terminal coupled to the second terminal of the first transistor, a second terminal coupled to the first amplifier output signal; a fourth transistor, having a control terminal coupled to the first input signal, a first terminal coupled to the second terminal of the second transistor, a second terminal coupled to the first amplifier output signal; a fifth transistor, having a control terminal coupled to the second input signal, a first terminal coupled to the second terminal of the first transistor, a second terminal coupled to the second amplifier output signal; and a sixth transistor, having a control terminal coupled to the second input signal, a first terminal coupled to the second terminal of the second transistor, a second terminal coupled to the second amplifier output signal; wherein the first, third, and fifth transistors are of a first conductivity type, and the second, fourth, and sixth transistors are of a second conductivity type.