A low-power low-noise sensor IC

2004 IEEE Workshop on Microelectronics and Electron Devices Pub Date : 2004-09-27 DOI:10.1109/WMED.2004.1297352

Haidong Guo, C.L. Champion, D. Rector, G. la Rue

引用次数: 3

Abstract

An IC for acquisition of 16 electrophysiology signals in mice is described. Each channel includes programmable gains from 10 to 1000, a 7 kHz low-pass 4th-order Butterworth filter and a sample and hold. Simulations predict 14-bit accuracy up to 7 kHz. The integrated noise from 1 Hz to 7 kHz is 1.9 /spl mu/V/Hz/sup 1/2 /. The +/-0.3V dc input offset of each channel is cancelled with 7-bit DACs controlling the bulk of the first opamp input transistors and 6-bit DACs on the 2/sup nd/ stage. Total power dissipation is 13.5 mW using a 3V supply. Die area is 6 mm/sup 2/ in a 0.25 /spl mu/ process.

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一种低功耗低噪声传感器集成电路

描述了一种用于采集小鼠16种电生理信号的集成电路。每个通道包括从10到1000的可编程增益，一个7 kHz低通四阶巴特沃斯滤波器和一个采样和保持。模拟预测14位精度高达7千赫。从1hz到7khz的综合噪声为1.9 /spl mu/V/Hz/sup 1/2 /。每个通道的+/-0.3V直流输入偏置由控制第一运放输入晶体管的7位dac和2/sup /级上的6位dac抵消。使用3V电源时，总功耗为13.5 mW。模具面积为6mm /sup 2/ 0.25 /spl mu/工艺。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2004 IEEE Workshop on Microelectronics and Electron Devices

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