A Noise-Optimal Integrator for High-Precision SC Sigma Delta Modulators

Xiao Lei Wang; Yong Wei Zhang

doi:10.4028/www.scientific.net/AMM.644-650.3322

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 644-650A Noise-Optimal Integrator for High-Precision SC...

A Noise-Optimal Integrator for High-Precision SC Sigma Delta Modulators

Abstract:

Based on N-well Chartered 0.35-um CMOS technology, we designed an integrator for a low-power and high-precision sigma-delta modulator, which has a structure of third-order CIFF, one bit quantization. Amplifier designed in this paper use the PMOS folded cascade differential structure. All switches of the switch capacitance integrator are CMOS switch. The structure-improved integrator can be used to preliminarily filter the noise power of the input signal, and reduce the noise into the modulator, combined with bottom plate sampling technology and the right timing sequence. Input sinusoidal signal has frequency of 65.625Hz and amplitude of 0.6V. It’s simulated in cadence spectre with sampling frequency of 76.8kHz and power supply voltage of 3.3V. FFT analysis of the integrator output shows that the noise floor is-94.3dB, which meets the performance requirements of the system.

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Periodical:

Applied Mechanics and Materials (Volumes 644-650)

Pages:

3322-3328

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.3322

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Online since:

September 2014

Authors:

Xiao Lei Wang*, Yong Wei Zhang

Keywords:

High Precision, Noise Optimal, SC-Integrator, Sigma-Delta Modulator

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* - Corresponding Author

References

[1] Porrazzo, S. & F. Cannillo, A Power-Optimal Design Methodology for High-Resolution Low-Bandwidth SC ΣΔ Modulator. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2012. 61: p.9.

DOI: 10.1109/tim.2012.2200812

Google Scholar

[2] Luo, H., et al., A 0. 8-V 230-uW 98-dB DR Inverter-Based ΣΔ Modulator for Audio Applications. IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2013. 48: p.12.

DOI: 10.1109/jssc.2013.2275659

Google Scholar

[3] Pan, H., et al., A 3. 3-V 12-b 50-MS/s A/D Converter in 0. 6um CMOS with over 80-dB SFDR. IEEE Journal of Solid-State Circuits, 2000. 35: p.12.

DOI: 10.1109/4.890290

Google Scholar

[4] Su, P. -H. & H. Chiueh, The Design of Low-Power CIFF Structure Second-Order Sigma-Delta Modulator, in 52nd IEEE International Midwest Symposium on Circuits and Systems2009. p.4.

DOI: 10.1109/mwscas.2009.5236077

Google Scholar

[5] Razavi, B., Design of Analog CMOS Integrated Circuits. 2001: Xian Jiao tong University Press.

Google Scholar

[6] GB, P., A. AP, and P. VA, Delta-Sigma Modulators Modeling, Design and Applications 2003, London: Imperial College Press.

Google Scholar