A Small-Area, Low-Power Delta-Sigma DAC Applied to a Power-Specific Chip

A Small-Area, Low-Power Delta-Sigma DAC Applied to a Power-Specific Chip

This paper introduces a small-area, low-power delta-sigma DAC that can support power line carrier communication. In order to achieve the oversampling ratio of 128, a three-stage cascaded half-band filter is utilized. An optimized sturdy MASH ΔΣ modulator was used to avoid instability caused by high-...

Full description

Bibliographic Details
Main Authors: Peng Li, Wei Xi, Xiangjun Zeng, Xiaobo Li, Dandan Zheng
Format: Article
Language:English
Published: Hindawi Limited 2021-01-01
Series:Journal of Sensors
Online Access:http://dx.doi.org/10.1155/2021/6630100
id doaj-e228948948804685a6a70cf5b7a55c6b
record_format Article
spelling doaj-e228948948804685a6a70cf5b7a55c6b2021-06-07T02:12:32ZengHindawi LimitedJournal of Sensors1687-72682021-01-01202110.1155/2021/6630100A Small-Area, Low-Power Delta-Sigma DAC Applied to a Power-Specific ChipPeng Li0Wei Xi1Xiangjun Zeng2Xiaobo Li3Dandan Zheng4Digital Grid Research InstituteDigital Grid Research InstituteSchool of Electrical and Information EngineeringDigital Grid Research InstituteHangzhou Sec-Chip Technology Co.This paper introduces a small-area, low-power delta-sigma DAC that can support power line carrier communication. In order to achieve the oversampling ratio of 128, a three-stage cascaded half-band filter is utilized. An optimized sturdy MASH ΔΣ modulator was used to avoid instability caused by high-order shaping and reduce the area at the same time. The postanalog reconstruction includes a switched-capacitor DAC (SC DAC) and a 4-tap FIR/IIR hybrid filter, which not only meets the requirements of low power but also promotes the out-of-band SNR. The final chip is fabricated in a 55 nm CMOS process, occupies 0.08 mm2, and consumes 1.5 mW of analog power at 2.5 V supply. The simulation results show that the dynamic range is 85.7 dB, while the out-of-band SNR is 40.5 dB.http://dx.doi.org/10.1155/2021/6630100
collection DOAJ
language English
format Article
sources DOAJ
author Peng Li
Wei Xi
Xiangjun Zeng
Xiaobo Li
Dandan Zheng
spellingShingle Peng Li
Wei Xi
Xiangjun Zeng
Xiaobo Li
Dandan Zheng
A Small-Area, Low-Power Delta-Sigma DAC Applied to a Power-Specific Chip
Journal of Sensors
author_facet Peng Li
Wei Xi
Xiangjun Zeng
Xiaobo Li
Dandan Zheng
author_sort Peng Li
title A Small-Area, Low-Power Delta-Sigma DAC Applied to a Power-Specific Chip
title_short A Small-Area, Low-Power Delta-Sigma DAC Applied to a Power-Specific Chip
title_full A Small-Area, Low-Power Delta-Sigma DAC Applied to a Power-Specific Chip
title_fullStr A Small-Area, Low-Power Delta-Sigma DAC Applied to a Power-Specific Chip
title_full_unstemmed A Small-Area, Low-Power Delta-Sigma DAC Applied to a Power-Specific Chip
title_sort small-area, low-power delta-sigma dac applied to a power-specific chip
publisher Hindawi Limited
series Journal of Sensors
issn 1687-7268
publishDate 2021-01-01
description This paper introduces a small-area, low-power delta-sigma DAC that can support power line carrier communication. In order to achieve the oversampling ratio of 128, a three-stage cascaded half-band filter is utilized. An optimized sturdy MASH ΔΣ modulator was used to avoid instability caused by high-order shaping and reduce the area at the same time. The postanalog reconstruction includes a switched-capacitor DAC (SC DAC) and a 4-tap FIR/IIR hybrid filter, which not only meets the requirements of low power but also promotes the out-of-band SNR. The final chip is fabricated in a 55 nm CMOS process, occupies 0.08 mm2, and consumes 1.5 mW of analog power at 2.5 V supply. The simulation results show that the dynamic range is 85.7 dB, while the out-of-band SNR is 40.5 dB.
url http://dx.doi.org/10.1155/2021/6630100
work_keys_str_mv AT pengli asmallarealowpowerdeltasigmadacappliedtoapowerspecificchip
AT weixi asmallarealowpowerdeltasigmadacappliedtoapowerspecificchip
AT xiangjunzeng asmallarealowpowerdeltasigmadacappliedtoapowerspecificchip
AT xiaoboli asmallarealowpowerdeltasigmadacappliedtoapowerspecificchip
AT dandanzheng asmallarealowpowerdeltasigmadacappliedtoapowerspecificchip
AT pengli smallarealowpowerdeltasigmadacappliedtoapowerspecificchip
AT weixi smallarealowpowerdeltasigmadacappliedtoapowerspecificchip
AT xiangjunzeng smallarealowpowerdeltasigmadacappliedtoapowerspecificchip
AT xiaoboli smallarealowpowerdeltasigmadacappliedtoapowerspecificchip
AT dandanzheng smallarealowpowerdeltasigmadacappliedtoapowerspecificchip
_version_ 1721393408357957632

Similar Items