INTEGRATED CIRCUIT WITH CHEMFET-SENSORS AND MEASURING METHOD

Integrated circuit (100) comprising a semiconductor substrate (110); an insulating layer (120) over said substrate; an first transistor (140) on said insulating layer, said first transistor comprising an exposed channel region (146) in between a source region (142a, 142b) and a drain region (144); and a voltage waveform generator (150) conductively coupled to the semiconductor substrate for providing the first transistor with a bias voltage during a signal acquisition period, wherein the voltage waveform generator is arranged to generate an alternating bias voltage waveform (300) comprising a periodically increasing amplitude. A sensing apparatus including such an integrated circuit and a sensing method using such an integrated circuit are also disclosed.