A precision current source using Δ-Σ modulation

IEEE Transactions on Instrumentation and Measurement

Volumn 60, Issue 7, 2011, Pages 2341-2346

  Bergsten, Tobias ^a   Rydler, Karl Erik ^a   Gunnarsson, Ove ^a   Eklund, Gunnar ^a   Tarasso, Valter ^a  

^a SP TECHNICAL RESEARCH INSTITUTE OF SWEDEN   (Sweden)

Author keywords

Calibration; capacitance; current measurement; sigma delta modulation; uncertainty

Indexed keywords

CONSTANT RATE; CURRENT MEASUREMENTS; CURRENT SOURCES; LOW-PASS FILTERING; NEW SOURCES; RANGE-BASED; SIGMA-DELTA MODULATION; STANDARD UNCERTAINTY; UNCERTAINTY; VOLTAGE LEVELS; VOLTAGE RAMP;

MODULATION; MODULATORS; UNCERTAINTY ANALYSIS;

DELTA SIGMA MODULATION;

EID: 79958257816     PISSN: 00189456     EISSN: None     Source Type: Journal    
DOI: 10.1109/TIM.2011.2117250     Document Type: Article

References (9)

1. G.-D. Willenberg, H. Tauscher, and P. Warnecke, "A traceable precision current source for currents between 100 aA and 10 pA", IEEE Trans. Instrum. Meas., vol. 52, no. 2, pp. 436-439, Apr. 2003.
2. H. van den Brom, P. de la Court, and G. Rietveld, "Accurate subpicoampere current source based on a differentiating capacitor with software-controlled nonlinearity compensation", IEEE Trans. Instrum. Meas., vol. 54, no. 2, pp. 554-558, Apr. 2005. (Pubitemid 40535773)
3. N. Fletcher, S. Giblin, J. Williams, and K. Lines, "New capability for generating and measuring small DC currents at NPL", IEEE Trans. Instrum. Meas., vol. 56, no. 2, pp. 326-330, Apr. 2007. (Pubitemid 46541916)
4. L. Callegaro, V. D'Elia, and B. Trinchera, "A current source for picoammeter calibration", IEEE Trans. Instrum. Meas., vol. 56, no. 4, pp. 1198-1201, Aug. 2007. (Pubitemid 47249881)
5. G.-D. Willenberg and H. Tauscher, "Novel digital voltage ramp generator for use in precision current sources in the picoampere range", IEEE Trans. Instrum. Meas., vol. 58, no. 4, pp. 756-760, Apr. 2009.
6. I. Iisakka, K. Kalliomaki, J. Seppala, and A. Manninen, "Subpicoampere current source based on a digital-to-analog converter", in Proc. CPEM Dig., Broomfield, CO, Jun. 8-13, 2008, pp. 352-353.
7. T. Bergsten, K.-E. Rydler, O. Gunnarsson, G. Eklund, and V. Tarasso, "A novel precision dc current source in the pA range", in Proc. CPEM Dig., Daejeon, Korea, Jun. 13-18, 2010, pp. 123-124.
8. S. R. Norsworthy, R. Schreier, and G. C. Temes, Delta-Sigma Data Converters: Theory, Design, and Simulation. Piscataway, NJ: IEEE Press, 1997.
9. S. P. Giblin, G. D. Willenberg, and N. E. Fletcher, "Frequency dependence of gas-dielectric capacitors used in sub-nA reference current generators", in Proc. CPEM Dig., Daejeon, Korea, Jun. 13-18, 2010, pp. 318-319.