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A standard CMOS bri...
A standard CMOS bridge-based analog interface for differential capacitive sensors
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- Barile, Gianluca (författare)
- University of l'Aquila, Via Gronchi, L'Aquila, Italy
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- Ferri, Giuseppe (författare)
- University of l'Aquila, Via Gronchi, L'Aquila, Italy
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- Parente, Francesca Romana (författare)
- University of l'Aquila, Via Gronchi, L'Aquila, Italy
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- Stornelli, Vincenzo (författare)
- University of l'Aquila, Via Gronchi, L'Aquila, Italy
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- Depari, Alessandro (författare)
- University of l'Aquila, Via Gronchi, L'Aquila, Italy
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- Flammini, Alessandra (författare)
- University of Brescia, Brescia, Italy
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- Sisinni, Emiliano (författare)
- University of Brescia, Brescia, Italy
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(creator_code:org_t)
- IEEE, 2017
- 2017
- Engelska.
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Ingår i: PRIME 2017 - 13th Conference on PhD Research in Microelectronics and Electronics, Proceedings. - : IEEE. - 9781509065073 ; , s. 281-284
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This work describes an analog electronic interface, based on a modified De Sauty AC bridge, performing a differential capacitive sensor estimation. A suitable feedback loop tunes a Voltage Controlled Resistor to balance the bridge. The electronic circuit has been designed in a standard integrated CMOS technology (AMS 0.35μm) with a low supply voltage (±1.5 V) and a reduced power consumption (lower than 4mW). PSpice simulation results show a very good agreement with theoretical expectations. The output voltage accuracy shows a 0.03V maximum absolute error for a range of ±50% of sensor variations from its baseline value. Very small baseline values are allowed (tens of μF).
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- analog front-end
- Bridge circuits
- Capacitive sensors
- CMOS technology
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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