Interface circuit for metal-oxide gas sensor

Proceedings of the IEEE 2001 Custom Integrated Circuits Conference (Cat. No.01CH37169) Pub Date : 2001-05-06 DOI:10.1109/CICC.2001.929735

Pierre-François Ruedi, P. Heim, A. Mortara, E. Franzi, H. Oguey, X. Arreguit

引用次数: 24

Abstract

This paper describes a sensor interface for metal-oxide chemical gas sensor for pollution detection. The function of the ASIC is to control the sensor working temperature by applying a programmable voltage with 10 bit resolution, to measure the resistance of the sensitive elements ranging from 5 k/spl Omega/ to 100 M/spl Omega/, measure the ambient temperature with an external NTC thermistor and offer a fully digital user interface. It gives the possibility to make low power and low cost high performance gas sensing microsystems for consumer application.

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金属氧化物气体传感器接口电路

介绍了一种用于污染检测的金属氧化物化学气体传感器的传感器接口。ASIC的功能是通过施加具有10位分辨率的可编程电压来控制传感器的工作温度，测量敏感元件的电阻范围从5 k/spl Omega/到100 M/spl Omega/，测量外部NTC热敏电阻的环境温度，并提供全数字用户界面。它为低功耗、低成本的高性能气体传感微系统的消费应用提供了可能性。

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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Proceedings of the IEEE 2001 Custom Integrated Circuits Conference (Cat. No.01CH37169)

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