An Ultra-Low-Power Extended Counting ADC For Large Scale Sensor Arrays

被引：0

作者：

Gao, Cencen ^{[1
]}

Wu, Dong ^{[1
]}

Liu, Hui ^{[1
]}

Xie, Nan ^{[1
]}

Pan, Liyang ^{[1
]}

机构：

[1] Tsinghua Univ, Inst Microelect, Beijing 100084, Peoples R China

来源：

2014 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) | 2014年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, an ultra-low-power area-efficient 12-bit extended counting analog-to-digital conversion (EC-ADC) is presented. A double-sampling configuration for incremental Sigma Delta modulators is proposed to halve the clock frequency of EC-ADC for the same conversion accuracy and rate. A class-AB operational transconductance amplifier (OTA) for low power EC-ADC is developed. The proposed architecture has been implemented using a commercial 0.18 mu m CMOS technology and occupies an area of 0.036mm(2). Measured results show that a power consumption of 13 mu W can be achieved at the conversion rate of 50Ksamples/s and 10.2-bit accuracy respectively.

引用

页码：81 / 84

页数：4

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