Title :
High resolution analog-to-digital converter for low-frequency high-voltage signals
Author :
Aaltonen, Lasse ; Halonen, Kari
Author_Institution :
SMARAD-2/Electron. Circuit Design Lab., Helsinki Univ. of Technol., Helsinki
fDate :
Aug. 31 2008-Sept. 3 2008
Abstract :
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.
Keywords :
analogue-digital conversion; delta-sigma modulation; SigmaDelta-ADC; continuous- time accelerometer; high resolution analog-to-digital converter; input referred noise; low-frequency high-voltage signals; low-noise buffer; single-ended input signal; Accelerometers; Analog-digital conversion; Bandwidth; Clocks; Low-frequency noise; MOS capacitors; Mechanical sensors; Signal design; Signal resolution; Signal to noise ratio;
Conference_Titel :
Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on
Conference_Location :
St. Julien´s
Print_ISBN :
978-1-4244-2181-7
Electronic_ISBN :
978-1-4244-2182-4
DOI :
10.1109/ICECS.2008.4675085
