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High resolution analog-to-digital converter for low-frequency high-voltage signals

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2 Author(s)
Aaltonen, L. ; SMARAD-2/Electron. Circuit Design Lab., Helsinki Univ. of Technol., Helsinki ; Halonen, K.

In this paper, a design and measurements of a high resolution analog-to-digital converter (ADC) will be presented. The implemented SigmaDelta-ADC is combined with a low-noise buffer which enables the use of a single-ended input signal with maximum value of twice the nominal supply. The designed system was measured to achieve input referred noise voltage density of 220 nV/radic(Hz) and a bandwidth up to 1 kHz. The presented system will be applied for digitizing the output of a continuous-time accelerometer.

Published in:

Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on

Date of Conference:

Aug. 31 2008-Sept. 3 2008

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