Self-adaptive output buffer based on charge sharing

摘要

A self-adaptive output buffer for an output terminal of an electronic circuit suitable to be connected to a load is proposed. The self-adaptive output buffer includes means for sensing an indication of the capacitance of the load and means for driving the load according to the sensing, wherein the means for sensing includes capacitive means with a preset capacitance, means for charging the capacitive means to a preset voltage, means for coupling the charged capacitive means with the load, and means for measuring a measuring voltage at the capacitive means due to a charge sharing between the capacitive means and the load.