一种用于生物传感器阵列的高分辨率低功耗过采样ADC

2007 IEEE Symposium on VLSI Circuits Pub Date : 2007-06-14 DOI:10.1109/VLSIC.2007.4342736

Ali Agahl, K. Vleugels, Peter B. Griffin, Mostafa Ronaghi, James D. Plummer, B. Wooley

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引用次数: 43

摘要

设计用于生物发光传感的免校准高分辨率ADC采用扩展计数架构，其中二阶增量SigmaDelta调制器的残差使用逐次逼近ADC进行编码。该ADC集成了0.18 μ m CMOS技术，在1MSample/sec的转换速率下实现了90.1 dB的动态范围和86.3 dB的峰值SNDR，功耗为38 mW。

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A High-Resolution Low-Power Oversampling ADC with Extended-Range for Bio-Sensor Arrays

A calibration-free, high-resolution ADC designed for bioluminescence sensing employs an extended-counting architecture in which the residual error from a second-order incremental SigmaDelta modulator is encoded using a successive approximation ADC. The ADC has been integrated in 0.18-mum CMOS technology and achieves a dynamic range of 90.1 dB and a peak SNDR of 86.3 dB at a conversion rate of 1MSample/sec with 38 mW power consumption.

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2007 IEEE Symposium on VLSI Circuits

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