Switched Capacitor A/D Converter Based on Butterworth Filter Implementation
How to Design Sigma-Delta Analog to Digital Converter
(Sprache: Englisch)
In this work, we present a fourth-order cascade-of-integrators feedback Sigma-Delta A/D converter. We use Oversampling and Noise-Shaping techniques to earn a higher resolution than that in the Nyquist-Rate A/D converters. A generic method is presented to...
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In this work, we present a fourth-order cascade-of-integrators feedback Sigma-Delta A/D converter. We use Oversampling and Noise-Shaping techniques to earn a higher resolution than that in the Nyquist-Rate A/D converters. A generic method is presented to make the system stabilized. In order to fix the zeros and poles in the unit circle, we use MATLAB to design the Butterworth high pass filter, and then the coefficients could be obtained. We present a complete design flow to decrease the time of the design. By applying this method, a fourth-order Sigma-Delta A/D converter is implemented by TSMC 0.35 ?m 2P4M Mixed-Signal Polycide process provided by National Chip Implementation Center. The circuit specification is as follows: the supply voltage is 3.3 V, the sampling rate is 256, the signal bandwidth is 20k Hz, the working frequency is 10.24Meg Hz, an SNR, 75.7dB is attained, and the total power consumption is 20.3 mW.
Autoren-Porträt von Ming-Shiung Tsai, Wei-Ling Yi
Tsai, Ming-ShiungMing-Shiung Tsai graduated from the National University of Kaohsiung with a Master degree in Electrical Engineering in July, 2007. His research area is mainly in the filed of analog circuit design and specifically, the design of Discrete-Time Sigma-Delta Analog-to-Digital Converter.Yi, Wei-Ling
Wei-Ling Yi is currently a graduate student pursuing the Master degree in Electrical Engineering of the National University of Kaohsiung. Her research area is specifically the circuit design of DT Sigma-Delta Modulator and the analog/mixed-signal signal layout.
Bibliographische Angaben
- Autoren: Ming-Shiung Tsai , Wei-Ling Yi
- 72 Seiten, Maße: 15 x 22 cm, Kartoniert (TB), Englisch
- Verlag: VDM Verlag Dr. Müller e.K.
- ISBN-10: 3639001605
- ISBN-13: 9783639001600
- Erscheinungsdatum: 22.04.2008
Sprache:
Englisch
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