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- Title
Design of the 12-bit Delta-Sigma Modulator using SC Technique for Vibration Sensor Output Processing.
- Authors
Pavlik, Michal; Kledrowetz, Vilem; Haze, Jiri
- Abstract
The work deals with the design of the 12-bit Delta-Sigma (ΔΣ) modulator using switched capacitors (SC) technique. The modulator serves to vibration sensor output processing. The first part describes the ΔΣ modulator parameters definition. Results of the proposed topology ideal model were presented as well. Next, the ΔΣ modulator circuitry on the transistor level was done. The ONSemiconductor I2T100 0.7 µm CMOS technology was used for design. Then, the ΔΣ modulator nonidealities were simulated and implemented into the MATLAB ideal model of the modulator. The model of real ΔΣ modulator was derived. Consequently, modulator coefficients were optimized. Finally, the corner analysis of the ΔΣ modulator with the optimized coefficients was simulated. The value of SNDR = 82.2 dB (ENOB = 13.4 bits) was achieved.
- Subjects
ELECTRONIC modulators; CAPACITORS; MATLAB (Computer software); TOPOLOGY; COMPLEMENTARY metal oxide semiconductors; SIMULATION methods &; models
- Publication
Radioengineering, 2012, Vol 21, Issue 1, p246
- ISSN
1210-2512
- Publication type
Article