SESSION 3 - Analog Techniques.pdf

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1、ISSCC 2024SESSION 3Analog Techniques 3.1:A PVT-Insensitive Sub-Ranging Current Reference Achieving 11.4ppm/C from-20C to 125C 2024 IEEE International Solid-State Circuits Conference1 of 60A PVT-Insensitive Sub-Ranging Current Reference Achieving 11.4ppm/C from-20C to 125CPangi Park1,Junghyup Lee2and

2、 SeongHwan Cho11 KAIST,Daejeon,Korea2 DGIST,Daegu,Korea3.1:A PVT-Insensitive Sub-Ranging Current Reference Achieving 11.4ppm/C from-20C to 125C 2024 IEEE International Solid-State Circuits Conference2 of 60Outline Introduction Key idea Sub-ranging compensation Proposed architectureProposed TC-contro

3、llable IR(,T)Circuit implementation Measurement results Conclusion3.1:A PVT-Insensitive Sub-Ranging Current Reference Achieving 11.4ppm/C from-20C to 125C 2024 IEEE International Solid-State Circuits Conference3 of 60Temperature-stable IREFis essential for reliable system operation.MotivationTypical

4、 analog ICs in systemsIREF ADCNTCHallBiasingcircuitsBiasingsensorsElectronic Device temperature ratingsIndustrial4085 CAutomotive40125 CCommercial070 C*Icons from Flaticon*https:/ PVT-Insensitive Sub-Ranging Current Reference Achieving 11.4ppm/C from-20C to 125C 2024 IEEE International Solid-State C

5、ircuits Conference4 of 60TemperatureCurrentTrangeIPTATICTATGeneration of Temperature-stable IREFIREF=IPTAT+ICTATIIPTATand ICTAThave oppositetemp.dependenciesBy adjusting their slopes,we can minimize I over Trange 1st-order TC compensated IREFis obtained.*TC:temperature coefficients3.1:A PVT-Insensit

6、ive Sub-Ranging Current Reference Achieving 11.4ppm/C from-20C to 125C 2024 IEEE International Solid-State Circuits Conference5 of 602nd-order TC compensation is necessary for wide-range operation.TemperatureCurrentTrangeIPTATICTATDesign Challenges in Wide Temp.RangeI Problem:2nd-order TCNon-linear