Surachoke ThanapitakChutham SawigunMahidol University2018-12-212019-03-142018-12-212019-03-142017-11-03ECTI-CON 2017 - 2017 14th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology. (2017), 135-1382-s2.0-85039916773https://repository.li.mahidol.ac.th/handle/20.500.14594/42249© 2017 IEEE. This paper present an ISFET readout circuit which is operated at 0.8 V supply and senses pH on both current and voltage accurately. This readout circuit requires one gate-source voltage and two drain-source voltage to operate in the weak inversion region. The power consumption at pH 7 is 2.5 nW. The output voltage of this readout circuit tracks with pH linearly while its current output is the exponential function to pH. The simulation results are conducted on a 0.35μm standard CMOS process.Mahidol UniversityComputer ScienceEngineeringConference PaperSCOPUS10.1109/ECTICon.2017.8096191