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.
| Original language | English |
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| Title of host publication | 2019 Austrochip Workshop on Microelectronics (Austrochip) |
| Pages | 10-13 |
| ISBN (Electronic) | 978-1-7281-1953-3 |
| DOIs | |
| Publication status | Published - 24 Oct 2019 |
| Event | 27th Austrochip Workshop on Microelectronics: Austrochip 2019 - FH Technikum Wien, Wien, Austria Duration: 24 Oct 2019 → 24 Oct 2019 Conference number: 27 https://embsys.technikum-wien.at/austrochip2019/ https://embsys.technikum-wien.at/austrochip2019/program/index.htm |
Workshop
| Workshop | 27th Austrochip Workshop on Microelectronics |
|---|---|
| Abbreviated title | Austrochip |
| Country/Territory | Austria |
| City | Wien |
| Period | 24/10/19 → 24/10/19 |
| Internet address |