Abstract
We present a set of CAD tools to design ΣΔ modulators. They use statistical optimization to calculate optimum specifications for the building blocks used in the modulators, and optimum sizes for the components in these blocks. Optimization procedures at the modulator level are equation-based, while procedures at the cell level are simulation-based. The toolset incorporates also an advanced ΣΔ behavioral simulator for monitoring and design space exploration. We include measurements taken from two silicon prototypes: 1) a 17bit@40kHz output rate fourth-order low-pass modulator; and 2) a 8bit@1.26MHz central freq@10kHz bandwidth band-pass modulator. The first uses SC fully-differential circuits in a 1.2µm CMOS double-metal double-poly technology. The second uses SI fully-differential circuits in a 0.8µm CMOS double-metal single-poly technology.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
J. C. Candy and G. C. Temes: “Oversampling Delta-Sigma Converters”. IEEE Press, 1992.
T. Ritoniemi: “High-Speed 1-Bit ΣΔ-Modulators”. Workshop on Advances in Analog Circuit Design, pp. 191–203. Delft, April 1992.
G. C. Temes and B. Leung: “LA Data Converter Architectures with Multibit Internal Quantizers”. Proc. 11th European Conference on Circuit Theory and Design (H. Dedieu, Ed.), Vol. 2, pp. 1613–1618, Davos, 1993.
S. R. Norsworthy, I. G. Post and H. S. Fetterman: “A 14-bit 80-kHz Sigma-Delta A/D Converter: Modeling, Design and Performance Evaluation”. IEEE Journal of Solid-State Circuits, Vol. SC-24, pp. 256–266, April 1989.
C. H. Wolff and L. Carley: “Simulation of Δ-E Modulators Using Behavioral Models”. Proc. ISCAS’90, pp. 376–379, 1990.
V. F. Dias, V. Liberali and F. Maloberti: “TOSCA: a User-Friendly Behavioral Simulator for Oversampling A/D Converters”. Proc. ISCAS’91, pp. 2677–2680, 1991.
“HSPICE: User’s Manual”. Meta Software Inc., 1988.
F. Medeiro: “Automated Design of SC ΣΔ Modulators”. PhD dissertation, Univ. Seville, 1996.
D. B. Ribner: “A Comparison of Modulator Networks for High-Order Oversampled ΣΔ Analog-to-Digital Converters”, IEEE Transactions on Circuits and Systems, Vol. 38, pp. 145–159, February 1991.
V. F. Dias, G. Palmisano, P O’Leary and F. Maloberti: “Fundamental Limitations of Switched-Capacitor Sigma-Delta Modulators”, IEE PROCEEDINGS-G, Vol. 139, pp. 27–32, February 1992.
B. E. Boser and B. A. Wooley: “The Design of Sigma-Delta Modulation Analog-to-Digital Converters”. IEEE Journal of Solid-State Circuits, Vol. 23. pp. 1298–1308, December 1988.
H. Baher and E. Afifi: “Novel Fourth-Order Sigma-Delta Convertor”. Electronics Letters, Vol. 28, pp. 1437–1438, July 1992.
F. Medeiro, R. Rodríguez-Macías, F. V. Fernández, R. Domínguez-Castro, J. L. Huertas and A. Rodríguez-Vázquez: “Global Design of Analog Cells Using Statistical Optimization Techniques”. Analog Integrated Circuits and Signal Processing, Vol. 6, pp. 179–195, November 1994.
P.J.M. van Laarhoven and E.H.L. Aarts: “Simulated Annealing: Theory and Applications”, Kluwer Academic Pub., 1987.
F. Medeiro, B. Pérez-Verdú, A. Rodríguez-Vázquez and J.L. Huertas: “A Vertically Integrated Tool for Automated Design of ΣΔ Modulators”. IEEE J. Solid-State Circuits, Vol. 30, pp. 762–772, July 1995.
P. R. Brent:“Algorithms for Minimization without Derivatives”, Englewood Cliffs, N. J.: Prentice-Hall, 1970.
“MATLAB: User’s Guide”. The MathWorks Inc., 1991.
J-B. Shyu, G. Temes and F. Krummenacher: “Random Error Effects in Matched MOS Capacitors and Current Sources”, IEEE Journal of Solid-State Circuits, Vol. SC-19. pp. 948–955, December 1984.
F. Medeiro, B. Pérez-Verdú, A. Rodríguez-Vázquez and J. L. Huertas: “Modeling Op Amp-Induced Harmonic Distortion for Switched-Capacitor Sigma-Delta Modulator Design”, Proc. ISCAS’94, Vol. 5, pp. 445–448. London, June 1994.
F. Medeiro, B. Pérez-Verdú, A. Rodríguez-Vázquez and J. L. Huertas: “Design Consideration for a Fourth-Order Switched-Capacitor Sigma-Delta Modulator”. Proc. 11th European Conference on Circuit Theory and Design (H. Dedieu, Ed.), Vol. 2, pp. 1607–1612, Davos, 1993.
J.M. de la Rosa, B. Pérez-Verdú, F. Medeiro and A. Rodríguez-Vázquez: “CMOS Fully-Differential BandPass ΣΔ Modulator Using Switched-Current Circuits”. Electronics Letters, Vol. 32, pp. 156–157, February 1996.
F. Duque-Carrillo: “Control of the Common-Mode Component in CMOS Continuous-Time Fully Differential Signal Processing”, Analog Circuits and Signal Processing, Vol. 4, pp. 131–140, 1993.
J. L. LaMay and H. J. Bogard: “How to Obtain Maximum Practical Performance from State - of-the-Art Delta-Sigma Analog-to-Digital Converters”, IEEE Trans, on Instrumentation and Measurements, Vol. 41, pp. 861–867, December 1992.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2001 Kluwer Academic Publishers
About this chapter
Cite this chapter
Medeiro, F., de la Rosa, J.M., Pérez-Verdú, B., Rodríguez-Vázquez, A. (2001). Tools For Automated Design of ΣΔ Modulators. In: Sansen, W., van de Plassche, R.J., Huijsing, J.H. (eds) Analog Circuit Design. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1443-1_12
Download citation
DOI: https://doi.org/10.1007/978-1-4613-1443-1_12
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-8628-8
Online ISBN: 978-1-4613-1443-1
eBook Packages: Springer Book Archive