Abstract
Fluxgate sensors can be used in a different range of applications, where the magnetic field needs to be measured. They are known for their high dynamic range and outstanding linearity. To drive the sensor a dedicated electronic circuitry is required to retain these excellent qualities. A fully differential voltage controlled current source can be used for the linearization of the fluxgate sensor via excitation of the feedback coil. In this paper a noise analysis was accomplished for an excitation circuit which is based on an Improved Howland Current Source in bridge configuration. Further, a noise improved design approach for a spaceborne fluxgate magnetometer is presented. For this reason a Verilog-A based model of a single ended operational amplifier is employed. Simulation results with Cadence Spectre ® show a signal-to-noise ratio of 119.9 dB, if the presented design flow is used.
Originalsprache | englisch |
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Titel | 2019 Austrochip Workshop on Microelectronics (Austrochip) |
Seiten | 10-13 |
ISBN (elektronisch) | 978-1-7281-1953-3 |
DOIs | |
Publikationsstatus | Veröffentlicht - 24 Okt. 2019 |
Veranstaltung | 27th Austrian Workshop on Microelectronics: Austrochip 2019 - FH Technikum Wien, Wien, Österreich Dauer: 24 Okt. 2019 → 24 Okt. 2019 Konferenznummer: 27 https://embsys.technikum-wien.at/austrochip2019/ https://embsys.technikum-wien.at/austrochip2019/program/index.htm |
Workshop
Workshop | 27th Austrian Workshop on Microelectronics |
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Kurztitel | Austrochip 2019 |
Land/Gebiet | Österreich |
Ort | Wien |
Zeitraum | 24/10/19 → 24/10/19 |
Internetadresse |