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ISFET Readout Circuit• CVCC• Analog switch• Low frequencynoise filteringR1C1R3R4IS F E TRR2C2~~ ~RRR-1VV outdecoderProf. Chung’s Lab. (2005)「Ion Sensing Circuit」USA Patient no.2012/5/21 28
ISFET pH meter single chip design•The proposed ISFET-based pH meterby using a single ASIC chip withperipheral interface•Key building blocks of an ISFET-based pH meterAnalog ModuleMixed-Signal Circuit3 ½ Digit LED/LCDASICOn-ChipCrystalOscillatorISFETSensorBandgap ReferenceBandgap ReferenceReadout & Amp.Readout & Amp.CircuitCircuit10 bits10 bitsDual-SlopeDual-SlopeADCADCX1ISFETLCD/LEDDisplayLCD/LEDDecoding CircuitTwo-pointCalibrationLO7LO4RESETSTARTR1C1Digital ModuleProf. Chung’s Lab (2004) Microelectronic Journal2012/5/21 29
Page 3 and 4: OUTLINEKey Issues and MotivationsEl
Page 5 and 6: Electronic SensingSeeSmellTaste2012
Page 7 and 8: Sensors Inspired by Nature• Touch
Page 9 and 10: 電子舌廣義應用研究
Page 11 and 12: Chloride ( 氯離子 )- 水質
Page 13 and 14: Quality of LifeDeterioratingRetirem
Page 15 and 16: Why Electronic Tongue System and IS
Page 17 and 18: FROM MOSFET TO ISFET (2)2012/5/21 1
Page 19 and 20: Original Readout Structure2012/5/21
Page 21 and 22: Bandgap Reference Circuit (1)2012/5
Page 23 and 24: Readout Circuit with Bandgap2012/5/
Page 25 and 26: Technology for ISFET sensor arrayGa
Page 27: Sensor Interfacing design2012/5/21
Page 31 and 32: Body-effect Improvement & P-well IS
Page 33 and 34: AMPEROMETRICSENSORS• Enzymatic bi
Page 35 and 36: Two and three-electrode electrode m
Page 37 and 38: Current-to-Current Transfer ModeRef
Page 39: 3-Electrode Amperometric ReadoutSch
Page 42 and 43: Amperometric Readout Chipsampero1 C
Page 44 and 45: 複合式讀出電路系統
Page 46 and 47: Global Research StatusNetherlands/P
Page 48 and 49: Integrated WorksElectronic Tongue &
Page 50 and 51: My future is not a dream!Ref: Chang
Page 52 and 53: Members in 2008~2011Lewa Galilee Se
Page 54: 參考文獻 (References)[1] F.

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