Touch detection circuit and operation device

The invention discloses a touch detection circuit and an operation device, the touch detection circuit is used for detecting whether a key is touched, and the touch detection circuit comprises a comparator, a compensation capacitor and a voltage control circuit. The comparator is provided with an inverted input end, a non-inverted input end and an output end. The compensation capacitor is coupled to the inverting input terminal. The voltage control circuit provides an output voltage to the non-inverting input end. In a correction mode, the voltage control circuit adjusts the output voltage according to the level of the output end. 本发明公开了一种触碰检测电路及操作装置，该触碰检测电路，用以检测一按键是否被触碰，并包括一比较器、一补偿电容以及一电压控制电路。比较器具有一反相输入端、一非反相输入端以及一输出端。补偿电容耦接反相输入端。电压控制电路提供一输出电压至非反相输入端。在一校正模式下，电压控制电路根据输出端的电平，调整输出电压。