Capacitive Type Touch Sensor Readout Circuit Using Passive I-ΣΔM Based C-to-V Converter

摘要

This works describes a touch sensor readout circuit using passive I-ΣΔM C-to-V converter, where the panel capacitance is used as the integral part of the lAM.As a result, the readout circuit can be realized using only one small capacitor, which considerably reduces the area, whereas achieving improved detection accuracy.