SIGNAL AMPLIFYING CIRCUIT

摘要

A signal amplifying circuit includes an operational amplifying module, a level adjusting module, and a voltage module. The operational amplifying module has a first input terminal, a second input terminal, and an output terminal The output terminal outputs a single-ended output signal having a level of zero. The level adjusting module has a control node and coupled to the first input terminal and the second input terminal respectively. The level adjusting module receives a first input signal and a second input signal of a pair of differential input signals respectively. The first input signal and the second input signal both have a first level but have inversed phases. The voltage module is coupled to the control node and used to provide a voltage signal having a second level to the control node.

主权项

1. A signal amplifying circuit, comprising:
an operational amplifying module having a first input terminal, a second input terminal, and an output terminal, wherein the output terminal outputs a single-ended output signal having a level of zero; a level adjusting module having a control node, wherein the level adjusting module is coupled to the first input terminal and the second input terminal respectively, and the level adjusting module receives a first input signal and a second input signal of a pair of differential input signals respectively, the first input signal and the second input signal both have a first level but have inversed phases; and a voltage module, coupled to the control node, for providing a voltage signal having a second level to the control node.