| 摘要 |
According to the embodiment of the present invention, a system includes a programmable gain amplifier which includes a switchable feedback capacitor which is coupled in parallel to a first capacitor and a controller. The controller couples the feedback capacitor between an output node and an input node of the programmable gain amplifier in a first gain setting process and switches a first terminal of the feedback capacitor from the output of the programmable gain amplifier to a reference node while a second terminal of the feedback capacitor is coupled to the input node of the programmable gain amplifier for a first period when the first gain setting process is transited to a second gain setting process. |
