Comparison study of integrated potentiostats : Resistive-TIA, Capacitive-TIA, CT ΣΔ Modulator
Beitrag zu einer Konferenz
Autoren
Rajabzadeh, Mahdi
Djekic, Denis
Häberle, Matthias
Becker, Joachim
Anders, Jens
Fakultäten
Fakultät für Ingenieurwissenschaften, Informatik und PsychologieInstitutionen
Institut für MikroelektronikExterne Kooperationen
Universität StuttgartErschienen in
2018 IEEE International Symposium on Circuits and Systems (ISCAS) ; 2018 (2018). - ISBN 978-1-5386-4882-7. - eISSN 2379-447X
Link zur Originalveröffentlichung
https://dx.doi.org/10.1109/ISCAS.2018.8351029Peer-Review
ja
Dokumentversion
acceptedVersion
Konferenz
2018 IEEE International Symposium on Circuits and Systems (ISCAS), 2018-05-27 - 2018-05-30, Florenz
Zusammenfassung
In this paper, a comparison between three different current readouts for micro-potentiostats is presented: resistive transimpedance amplifier (R-TIA), capacitive transimpedance amplifier (C-TIA), and current-mode continuous-time sigma-delta modulator (Current-CTSDM). The comparison is carried out
on the signal transfer function, the required amplifier gainbandwidth (GBW), its input referred noise current, required area and power, and dynamic range. Each approach and its limitations are separately discussed. The three systems have been simulated using VerilogA models and the results are compared. It is shown that each system comes with its own limitations, however current-mode CTSDM are more beneficial due to their intrinsic digitization.
Förderinformationen
GRK 2203 / Mikro- und nanoskalige Sensorik für die Lunge (PULMOSENS) / DFG / GRK / 278012962
Normierte Schlagwörter
Transistor [GND]Stromversorgung <Elektrotechnik> [GND]
Vergleich [GND]
Verstärker [GND]
Radiofrequenzbereich [GND]
Potentiostat [LCSH]
Transistors [LCSH]
Radio frequency [LCSH]
Capacitance meters [LCSH]
Electric resistors [LCSH]
Transfer functions [LCSH]
Detectors [LCSH]
Modulation (Electronics) [LCSH]
Amplifiers (Electronics) [LCSH]
Schlagwörter
Current-CTSDM; current readouts; comparison; micro-potentiostats; resistive transimpedance amplifier; R-TIA; current-mode continuous-time sigma-delta modulatorDDC-Sachgruppe
DDC 620 / Engineering & allied operationsMetadata
Zur LanganzeigeZitiervorlage
Rajabzadeh, Mahdi et al. (2020): Comparison study of integrated potentiostats : Resistive-TIA, Capacitive-TIA, CT ΣΔ Modulator. Open Access Repositorium der Universität Ulm. http://dx.doi.org/10.18725/OPARU-23800