A CMOS transistor-only $\mathbf{2^{nd}}$ order low-pass $\mathbf{\Sigma \Delta}$ modulator

Authors

  • F. S
  • oval-Ibarra.
  • R. Rodríguez-Calderón

Keywords:

Semiconductor devices, integrated circuits

Abstract

A simple procedure for designing a switched-current second-order $\Sigma \Delta $ modulator is presented. Since this design assumes a white noise spectrum due the quantization process, and by sizing the needed current branches according the proposed equivalent MOS transistor signal-to-noise ratio, a 2$^{nd}$ order $\Sigma \Delta $ modulator suitable to develop an analog-to-digital converter for audio applications has been obtained. The experimental results verify in high percentage the utility of the proposed model. However, additional noise effects have to be taken into account to increase the performance of the modulator.

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Published

2003-01-01

How to Cite

[1]
F. S, oval-Ibarra., and R. Rodríguez-Calderón, “A CMOS transistor-only $\mathbf{2^{nd}}$ order low-pass $\mathbf{\Sigma \Delta}$ modulator”, Rev. Mex. Fís., vol. 49, no. 4, pp. 303–0, Jan. 2003.

Issue

Vol. 49 No. 4 (2003): Revista Mexicana de Física.

Section

Articles

License

Authors retain copyright and grant the Revista Mexicana de Física right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.