An Ultra Low-Voltage Multibit Delta-Sigma Modulator for Audio-Band Application
| dc.contributor | 國立臺灣師範大學電機工程學系 | zh_tw |
| dc.contributor.author | Chien-Hung Kuo | en_US |
| dc.contributor.author | Huai-Juan Xie | en_US |
| dc.date.accessioned | 2014-10-30T09:28:40Z | |
| dc.date.available | 2014-10-30T09:28:40Z | |
| dc.date.issued | 2008-05-21 | zh_TW |
| dc.description.abstract | This paper presents a 0.8 V multibit delta-sigma (DeltaSigma) modulator with a single switched-opamp (SOP) in a 0.18 mum 1P6M CMOS technology. The double-sampling technique is adopted in the modulator to promote the clock efficiency and relax the requirement of SOP. To improve the accuracy of the multibit quantizer in a low-voltage circumstance and reduce the static power, a new switched-capacitor (SC) multibit quantizer without R-string is proposed. The presented DeltaSigma modulator achieves a signal-to-noise-plus-distortion ratio (SNDR) of 88 dB and dynamic range (DR) of 89 dB within a 22 kHz of bandwidth under a 1.25 MHz of clock rate. The power consumption of the presented modulator is 4.2 mW at a 0.8 V of supply voltage. | en_US |
| dc.description.uri | http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4541754 | zh_TW |
| dc.identifier | ntnulib_tp_E0610_02_006 | zh_TW |
| dc.identifier.uri | http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/32215 | |
| dc.language | en | zh_TW |
| dc.relation | The IEEE International Symposium on Circuits and Systems, Seattle, pp. 1660-1663. | en_US |
| dc.title | An Ultra Low-Voltage Multibit Delta-Sigma Modulator for Audio-Band Application | en_US |