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|Title:||A 1-V 1.1-μW sensor interface IC for wearable biomedical devices|
|Authors:||Zou, X. |
|Source:||Zou, X., Xu, X., Tan, J., Yao, L., Lian, Y. (2008). A 1-V 1.1-μW sensor interface IC for wearable biomedical devices. Proceedings - IEEE International Symposium on Circuits and Systems : 2725-2728. ScholarBank@NUS Repository. https://doi.org/10.1109/ISCAS.2008.4542020|
|Abstract:||An ultra-low-power, low-noise sensor interface IC dedicated for bio-signal acquisition is presented in this paper. The proposed system architecture is optimized to achieve a better trade-off between power consumption and noise figure. A 0.05-200 Hz bandpass function is embedded within the front-end amplifier, and a wide bandwidth buffer is inserted between the front-end amplifier and ADC to facilitate a power-efficient interface. The system also includes an 11-bit SAR ADC with nonlinearity of less than ±0.7 LSB. The measured input-referred noise is 2.1 μV integrated across the pass-band, achieving Noise Efficiency Factor of 2.9, and the power consumption for the overall system is 1.1 μW under 1 V supply. ©2008 IEEE.|
|Source Title:||Proceedings - IEEE International Symposium on Circuits and Systems|
|Appears in Collections:||Staff Publications|
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