Analog design for reuse-case study: very low-voltage /spl Delta//spl Sigma/ modulator

This paper presents the complete design methodology of a very low-voltage /spl Delta//spl Sigma/ third-order modulator from high-level specifications down to layout. Behavioral models taking into account cell nonidealities are developed and used to map performance specifications to lower levels. Emphasis has been made on eventual design reuse through design plans and layout templates in a layout-oriented circuit design approach. The modulator has been designed for two different technologies demonstrating the suitability of the methodology for very high performance mixed-signal circuits. Moreover the same design knowledge has been successfully reused in another fourth-order modulator.

[1]  W. Sansen,et al.  A 3.3 V 15-bit delta-sigma ADC with a signal bandwidth of 1.1 MHz for ADSL-applications , 1999, Proceedings of the 24th European Solid-State Circuits Conference.

[2]  Mohamed Dessouky,et al.  A layout approach for electrical and physical design integration of high-performance analog circuits , 2000, Proceedings IEEE 2000 First International Symposium on Quality Electronic Design (Cat. No. PR00525).

[3]  Alberto Sangiovanni-Vincentelli,et al.  A module generator for high-speed CMOS current output digital/analog converters , 1996 .

[4]  Kenneth Francken,et al.  Methodology for analog technology porting including performance tuning , 1999, ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349).

[5]  J.L. Huertas,et al.  A Vertically-Integrated Tool for Automated Design of ΔΣ Modulators , 1994, ESSCIRC '94: Twientieth European Solid-State Circuits Conference.

[6]  M. Dessouky,et al.  Layout-oriented synthesis of high performance analog circuits , 2000, Proceedings Design, Automation and Test in Europe Conference and Exhibition 2000 (Cat. No. PR00537).

[7]  Rob A. Rutenbar,et al.  A case study of synthesis for industrial-scale analog IP: redesign of the equalizer/filter frontend for an ADSL CODEC , 2000, Proceedings 37th Design Automation Conference.

[8]  Andreas Kaiser,et al.  Very low-voltage fully differential amplifier for switched-capacitor applications , 2000, 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353).