A new rail-to-rail comparator with adaptive power control for low power SAR ADCs in biomedical application

A new rail-to-rail comparator with adaptive power control for low power SAR ADCs in biomedical application
复制标题

一种具有自适应功率控制的新型轨到轨比较器,适用于生物医学应用中的低功耗 SAR ADC

DOI:
10.1109/iscas.2010.5537421
复制
发表时间:
2010
期刊:
Proceedings of 2010 IEEE International Symposium on Circuits and Systems
影响因子:
--
通讯作者:
H. Tsai
H. Tsai
中科院分区:
--
文献类型:
--
作者:
Sung;C. Hsieh;Chin;H. Tsai

文献摘要

参考文献

被引文献

相似文献

本文提出了一种新的低噪声、高速、低功耗的IV型轨到轨比较器。我们利用电流镜来克服反冲噪声。一种新的自适应功率控制(APC)技术也被提出来最大限度地减少比较器的功耗。此外,它提供了一个优化和稳定的功耗与工艺和偏置变化无关。采用0.18μm TSMC CMOS工艺实现了一个用于生物医学应用的IV型轨到轨SAR ADC原型。在250 kS/s时,功耗为2.86 μW,品质因数为85.7fJ/转换步。实验结果表明,在500 ~ 125 kS/s范围内,动态比较器的功耗降低了52%~ 80%。
In this paper, a new IV rail-to-rail comparator is presented with low noise, high speed and low power consumption. We utilize current mirrors to overcome the kickback noise. A new adaptive power control (APC) technique is also proposed to minimize the power dissipation of the comparator. Moreover, it provides an optimized and stable power dissipation irrelative to process and bias variation. A prototype IV rail-to-rail SAR ADC for biomedical application has been implemented in 0.18μm TSMC CMOS technology. It consumes 2.86 μW at 250kS/s and the figure of merit is 85.7 fJ/conversion-step. It shows that this work efficiently reduces 52% to 80% power consumption of the dynamic comparator at 500kS/s to 125kS/s.
具有轨至轨输入电压范围的 1V 电源逐次逼近 ADC
DOI: --
发表时间: 2005
期刊:
影响因子: --
作者:
Kawai;K.;Nishikawa;T.;Shiba;Y.;Saito;S.;Murota;K.;Shihata;N.;Kobayashi;M.;Kanayama;M.;Uchida;K. and Terao;J.;T. Yoshida
通讯作者: T. Yoshida