Please use this identifier to cite or link to this item:
|Title:||A 0.6-V 82-dB 28.6-μW continuous-time audio deltasSigma modulator|
|Citation:||Zhang, J., Lian, Y., Yao, L., Shi, B. (2011-10). A 0.6-V 82-dB 28.6-μW continuous-time audio deltasSigma modulator. IEEE Journal of Solid-State Circuits 46 (10) : 2326-2335. ScholarBank@NUS Repository. https://doi.org/10.1109/JSSC.2011.2161212|
|Abstract:||The design of a low-voltage low-power fourth-order single-bit continuous-time Delta-Sigma modulator is presented in this paper for audio applications. The modulator employs an input-feedforward topology in order to reduce internal signal swings, thus relaxes the linearity and slew rate requirements on amplifiers leading to low-voltage operation and low-power consumption. The energy efficiency is further improved by embedding the summation of feedforward paths into the quantizer. For low-voltage operation, a gain-enhanced fully-differential amplifier and a body-driven rail-to-rail input CMFB circuit are developed. The modulator, implemented in a 0.13-μm standard CMOS technology with a core area of 0.11 mm2, achieves an 82-dB dynamic range (DR), and a 79.1-dB peak signal-to-noise and distortion ratio (SNDR) over a 20-kHz signal bandwidth. The power consumption of the modulator is 28.6 μW under a 0.6-V supply voltage. The achieved performance make it one of the best among state-of-the-art sub-1-V modulators in terms of two widely used figures of merit. © 2011 IEEE.|
|Source Title:||IEEE Journal of Solid-State Circuits|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 19, 2018
WEB OF SCIENCETM
checked on Sep 5, 2018
checked on Sep 21, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.