- AutorIn
- Preeti Udapudi Technische Universität Chemnitz
- Titel
- Measurement of Electromagnetic Interference Rejection Ratio for Precision Instrumentation Amplifiers
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:ch1-qucosa2-790035
- Datum der Einreichung
- 08.03.2022
- Datum der Verteidigung
- 30.03.2022
- Abstract (EN)
- Electro-Magnetic Interference(EMI) degrades the perfomance of electronic systems. So, Amplifiers which are the basic building blocks used in the front-end of analog and mixed-signal Integrated Circuits (ICs) must be evaluated for EMI. This work introduces the most intriguing figure of merit, Electro-Magnetic Interference Rejection Ratio (EMIRR) to measure the EMI immunity of precision Instrumentation Amplifiers (INAs) that helps to select the EMI robust INAs for EMI critical applications. In this work, a new EMIRR measurement setup is implemented to measure the immunity of INAs for conducted EMI ranging from 10 MHz to 3 GHz. The shift in the DC offset voltage generated at the output of the INA due to RF rectification, is used to compute EMIRR. As part of the setup, the hardware evaluation board is designed and an automation test software is developed to run EMIRR measurements. Furthermore, EMIRR measurements are performed on several INAs with different specifications to compare and rank them on their EMI immunity levels. Additionally, with the help of EMIRR metric, suitable INAs for developing EMI-sensitive applications are proposed. Finally, the influence of amplifier bandwidth, the input capacitance, 50 Ω termination at the end of RF input trace, INA package parasitics and EMI filter bandwidth on EMIRR is analyzed with the measurement results.
- Freie Schlagwörter (EN)
- Electro-Magnetic Interference, Amplifiers, Instrumentation Amplifiers
- Klassifikation (DDC)
- 004
- Normschlagwörter (GND)
- Verstärker
- GutachterIn
- Prof. Dr. Dr. h.c. Wolfram Hardt
- BetreuerIn Hochschule / Universität
- M.Sc. Reda Harradi
- BetreuerIn - externe Einrichtung
- Patrick Kammermayer
- Den akademischen Grad verleihende / prüfende Institution
- Technische Universität Chemnitz, Chemnitz
- Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:ch1-qucosa2-790035
- Veröffentlichungsdatum Qucosa
- 29.04.2022
- Dokumenttyp
- Masterarbeit / Staatsexamensarbeit
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis