Amplification circuit

An amplification circuit, comprising:

• a first signal terminal;
• a second signal terminal;
• a third signal terminal;
• a first path coupled between the first signal terminal and the second signal terminal;
• a second path coupled in parallel with at least a portion of the first path, and coupled to a first node and a second node of the first path;
• and
• a third path coupled between the first signal terminal and the third signal terminal;
• wherein the first path comprises:
• a first amplifier, comprising an input terminal and an output terminal, wherein the input terminal of the first amplifier is coupled to the first signal terminal;
• a first switch unit, comprising a first terminal and a second terminal, wherein the first terminal of the first switch unit is coupled to the first signal terminal, and the second terminal of the first switch unit is coupled to a first reference voltage terminal;
• a second switch unit, comprising a third switch, a fourth switch, and a fifth switch, wherein
• a first terminal of the third switch is coupled to the output terminal of the first amplifier, a second terminal of the third switch is coupled to a second reference voltage terminal;
• a first terminal of the fourth switch is coupled to the output terminal of the first amplifier, and a second terminal of the fourth switch is coupled to the second signal terminal;
• a first terminal of the fifth switch is coupled to a node between the second terminal of the fourth switch and the second node, and a second terminal of the fifth switch is coupled to a third reference voltage terminal;
• wherein when the third path is enabled, the fifth switch is turned on.