A 290-μW 25-kHz continuous-time delta-sigma modulator for acoustic sensor networks
- Title
- A 290-μW 25-kHz continuous-time delta-sigma modulator for acoustic sensor networks
- Author
- 노정진
- Keywords
- Acoustic Sensors; High resolution; Delta sigma modulator; Continuous time; Continuous time systems; Electric power supplies to apparatus; Modulators; Application specific integrated circuits; Acoustic devices; Low Power; Modulation; Sensor networks; CMOS
- Issue Date
- 2009-10
- Publisher
- IEEE
- Citation
- 2009 IEEE 8th International Conference on ASIC, article no. 5351278, Page. 447-450
- Abstract
- This paper presents the design of a continuous-time delta-sigma (ΔΣ) modulator for acoustic sensor networks. A feed-forward structure without a summing block is used to reduce the power consumption of the ΔΣ modulator. A high-linearity active-RC filter is used to improve the resolution of the ΔΣ modulator. A low-power, high-resolution fourth-order continuous-time ΔΣ modulator with 1-bit quantization was developed by using 0.13-μm, 1-poly 8-metal CMOS technology, with a core area of 0.58 mm2. Simulation results show that the modulator achieved 91.3-dB SNDR (signal-to-noise plus distortion ratio) over a 25-kHz signal bandwidth with an oversampling ratio of 64, while dissipating 290 μW of power from a 3.3-V supply. ©2009 IEEE.
- URI
- https://ieeexplore.ieee.org/document/5351278https://repository.hanyang.ac.kr/handle/20.500.11754/183481
- DOI
- 10.1109/ASICON.2009.5351278
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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