A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications

Hsin Hung Ou, Ya Chi Chen, Bin Da Liu

研究成果: Conference contribution

摘要

For implantable biosensor applications which require a low-cost signal processing unit that features ultra-low power and low-voltage capability as well, this paper proposes a solution by merging switched-opamp technique and foreground digital calibration into a single 10-bit ADC. Utilization of the switched-opamp technique allows for low supply operation down to 0.7 V. The insufficient gain associated with low supply voltage analog devices is manipulated by the employment of foreground calibration. Ultra-low power consumption is achieved through adequate circuit structure selection and weak-inversion transistor biasing. The ADC employs the cyclic/algorithmic architecture which uses only two opamps and two comparators. Simulation results with CMOS 0.13 μm process model demonstrate that the signal to noise and distortion ratio (SNDR) at 10-KHz clock rate is 57 dB when 0.5 % capacitor mismatch is considered. The power consumption of the whole ADC is 3 μW with 0.7 V supply.

原文English
主出版物標題IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006
頁面122-125
頁數4
DOIs
出版狀態Published - 2006 十二月 1
事件IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006 - London, United Kingdom
持續時間: 2006 十一月 292006 十二月 1

出版系列

名字IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006

Other

OtherIEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006
國家United Kingdom
城市London
期間06-11-2906-12-01

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Electrical and Electronic Engineering

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  • 引用此

    Ou, H. H., Chen, Y. C., & Liu, B. D. (2006). A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications. 於 IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006 (頁 122-125). [4600323] (IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006). https://doi.org/10.1109/BIOCAS.2006.4600323