生物传感用超低噪声CMOS跨阻放大器的设计

2017 IEEE 8th Annual Ubiquitous Computing, Electronics and Mobile Communication Conference (UEMCON) Pub Date : 2017-10-01 DOI:10.1109/UEMCON.2017.8248971

Kavyashree Puttananjegowda, Majdi M. Ababneh, Sylvia W. Thomas

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引用次数: 3

摘要

本文提出了一种低噪声、低功耗的跨阻抗放大器(TIA)，用于基于电流计的可穿戴设备血糖监测系统。所提出的级联码共源多级跨阻放大电路在180nm CMOS工艺上实现。TIA显示的跨阻增益为145MΩ，在50kHz时输入参考电流噪声为27.4fA/√Hz。当输入电流为5nA, 1V电源总功耗为110uW时。

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The design of ultra low noise CMOS transimpedance amplifier for biosensing applications

This paper presents, a low-noise, low-power transimpedance amplifier (TIA) for amperiometric based blood glucose monitoring system for wearable devices. The proposed cascode common source multi-stage transimpedance amplifier circuit is implemented in a 180nm CMOS process. The TIA shows a transimpedance gain of 145MΩ and input referred current noise is 27.4fA/√Hz at 50kHz. When the input current is 5nA and the total power consumption is 110uW from 1V supply.

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2017 IEEE 8th Annual Ubiquitous Computing, Electronics and Mobile Communication Conference (UEMCON)

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