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Abstrakty
In this paper an object of analysis and simulation modeling are the basic programmable circuits using CMOS digital potentiometers or Resistive Digital-to-Analog Converters (RDACs). Based on the analysis and principle of operation an improved SPICE-based behavioral model for RDAC potentiometers is created. The model accurately reflects resolution (wiper steps), nominal end-to-end resistance, wiper resistance, linear and nonlinear increment/decrement of the wiper, common-mode leakage current, operating bandwidth, analog crosstalk, temperature coefficients and noise effects. Model parameters are extracted for the dual RDAC potentiometer AD5235 from Analog Devices as an example. The workability of the proposed simulation model is verified by simulation modeling and experimental testing of sample electronic circuits.
Słowa kluczowe
Rocznik
Tom
Strony
127--135
Opis fizyczny
Bibliogr. 22 poz.
Twórcy
autor
- Department of Electronics, Faculty of Electronic Engineering and Technologies, Technical University of Sofia, 8 Kl. Ohridski Blvd, Sofia 1000, Bulgaria
Bibliografia
- [1] W. Kester. “Data converter applications,” in Analog-Digital Conversion. Norwood, MA: Analog Devices, 2004, Chapter 8, 8-49-8-58.
- [2] B. Baker. (2000, Aug.). Comparing digital potentiometers to mechanical potentiometers. Microchip, Application Note: AN 219, [Online]. DS00219A pp. Available: http://ww1.microchip.com/downloads/en/AppNotes/00219.pdf.
- [3] A. Li. (Rev. A 2001, Dec.). Resolution enhancements of digital potentiometers with multiple devices. Analog Devices, MA, AN-582, [Online]. Available: http://www.analog.com/static/imported-files/application_notes/AN-582.pdf.
- [4] A. Li. (2003, Aug.). Versatile programmable amplifiers using digital potentiometers with nonvolatile memory. Analog Devices, MA, Application note AN-579, [Online]. Available: http://www.analog.com/static/imported-files/application_notes/AN-579.pdf.
- [5] Analog Devices, Norwood, MA 02062-9106, USA. Digital potentiometers, [Online]. Available: http://www.analog.com/en/digital-to-analog-converters/digital-potentiometerslproductsl index.html.
- [6] B. Sevclk, and L. Braclk, “Application of digital potentiometers in multifunctional active filters at frequencies above 1 MHz,” International Journal of Microelectronics and Computer Science, vol. 1, no. 2, pp. 138-146, 2010.
- [7] B. Sevcik, “Modeling and signal integrity testing of digital potentiometers,” in The 17th International Conference Mixed Design of Integrated Circuits and Systems, MIXDES 2010, 24-26 June, Warsaw, Poland, 2010, pp. 241-245.
- [8] AD5235: nonvolatile memory, dual 1024-position digital potentiometer - datasheet. Analog Devices, [Online] . Available: http://www.analog.com/en/digital-to-analog-converters/digital-potentiometerslad5235/products/product.html.
- [9] “Analog parts” in MicroSim PSpice A/D Reference manual. Irvine, California USA: MicroSim, 1996, pp. 2-1 - 2-116.
- [10] V. Tietze, and Ch. Schenk, “Operational amplifiers” in Electronic circuits. 2nd Edition. Berlin, Heidelberg, New York: Springer-Verlag, 2008, pp. 483-586.
- [11] J. Boyanov and E. Shoikova, “Transfer functions of analog electronic circuits,” in Theory of electronic circuits. Sofia: Tehnika, (in Bulgaria), 1989, pp. 148-201.
- [12] M. Seifart, ,,Dynamische Stabilitat gegengekopplter Verstarker“ in Analoge Schaltungen. 6 Auflage. Berlin: Verlag Technik (in German), 2003, pp. 245-260.
- [13] High speed analog design and application seminar, Texas Instruments Inc. [Online]. Available: http://www.ti.com/lit/ml/slyp169/slyp169.pdf.
- [14] B. Erik, “Bandwidth limitations in current mode and voltage mode integrated feedback amplifiers,” IEEE International Symposium on Circuits and Systems, ISCAS '95, 30 Apr-3 May 1995, Seattle, WA, vol. 1, pp. 303-306.
- [15] R. Mancini. (2001, March). Feedback Amplifier Analysis Tools. Texas Instruments, Application repot SLOAOI 7A, [Online]. Available: www.ti.com/lit/an/sloa017a/sloa017a.pdf.
- [16] M. Samadi, A. Karsilayan and J. Silva-Martinez, “Bandwidth enhancement of multi-stage amplifiers using active feedback,” IEEE International Symposium on Circuits and Systems, ISCAS '04, 23-26 May 2004, Vancouver, Canada, vol. 1 pp. 609-612.
- [17] S. Mahalingam, Md. Mamun, L. Rahman, and Wan Mimi Diyana Wan Zaki, “Design and Analysis of a Two Stage Operational Amplifier for High Gain and High Bandwidth,” Australian Journal of Basic and Applied Sciences, vol. 6, no. 7, pp. 247-254, 2012.
- [18] Y. Amana, “A Review Paper on Design and Synthesis of Two-Stage CMOS Op-Amp,” International Journal of Advances in Engineering and Technology, vol. 2, no. 1, pp. 677-688, 2012.
- [19] S. Robinson, “Conceptual Modeling for Simulation: Issues and Research Requirements,” in Winter Simulation Conference 2006, WSC 06, 3-6 Dec. 2006, Monterey, CA, pp. 792-799.
- [20] S. Robinson, “Model building and testing” in Successful Simulation. A Practical approach to Simulation Projects. London: McGraw-Hill, 1998, pp. 127-151.
- [21] G. Boyle, B. Conn, D. Pederson, and J. Solomon, “Macromodelling of integrated circuit operational amplifiers,” IEEE Journal of Solid-State Circuits, vol. 9, no. 6, pp. 353-363, 1974.
- [22] AD5235 Non-volatile memory digital potentiometers evaluation board user manual, Analog Devices, P. O. Box 9106, Norwood, MA 02062-9106, USA, 2003.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-d1a58a6a-546e-48f6-b05e-c0b733428376