High Resolution Successive Approximation ADC for Low Power Biomedical Applications

被引：2

作者：

Chow, Hwang-Cherng ^{[1
]}

Lin, Wan-Tin ^{[1
]}

机构：

[1] Chang Gung Univ, Grad Inst Elect Engn, Tao Yuan 333, Taiwan

来源：

INTERNATIONAL CONFERENCE ON ADVANCES SCIENCE AND CONTEMPORARY ENGINEERING 2012 | 2012年 / 50卷

关键词：

successive approximation; ADC; DAC; low power; high resolution; biomedical applications; CONVERTER;

D O I：

10.1016/j.proeng.2012.10.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, a 1-volt 12-bit successive approximation analog-to-digital converter ( ADC) has been proposed. The power dissipation is 50.9 uW with the sampling frequency of 40 KHz. Based on the simulation results, the used digital-to-analog converter with a calibration technique in ADC effectively reduces the differential nonlinearity. For biomedical applications, if the ADC input after the instrumentation amplifier is limited to 0.5 volt, the differential nonlinearity and the integral nonlinearity are within 1 LSB and 8.31 LSB respectively. The signal to noise ratio is 59.82 dB and the effective bit resolution is therefore 9.7 bits. (C) 2012 Elsevier B. V ... Selection and peer-review under responsibility of Bin Nusantara University

引用

页码：275 / 283

页数：9

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