کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11020946 | 1715047 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Time-based calibration-less read-out circuit for interfacing wide range MOX gas sensors
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
سخت افزارها و معماری
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper presents a high linearity, wide dynamic range, calibration-less readout circuit for metal oxide resistive gas sensors. The proposed interface is based on resistance-to-time conversion. Such conversion represents a suitable signal conditioning to interface resistive sensors varying over a wide range. The output waveform of time-based circuits can be easily interfaced when connected to a counter or a microcontroller. The readout circuit designed in AMS 0.35â¯Î¼m-dual 1.65â¯V CMOS technology shows that the wide resistance range varying from 10â¯â¯kΩ to 10GΩ is converted into time domain with a relative linearity error lower than 0.9% and achieves a dynamic range of 161â¯dB over 6-decades at transistor level simulation. Such high dynamic range is required for outdoor air quality monitoring and at the same time to overcome the sensor drift.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Integration - Volume 63, September 2018, Pages 232-239
Journal: Integration - Volume 63, September 2018, Pages 232-239
نویسندگان
Zeinab Hijazi, Marco Grassi, Daniele D. Caviglia, Maurizio Valle,