An 8-channel gas-sensor array interface with temperature control circuit is integrated in 0.35µm CMOS technology. The read-out structure achieves a 0.5%-linearity and a SNR>48dB over 500kΩ-1GΩ sensor resistance range with a 114dB-DR. The temperature control systems maintain a 100°C gradient in the range 100°C-400°C with a 2.5°C accuracy. The power consumption is 27mW@3.3V.
A CMOS interface for gas-sensor array with a 0.5%-linearity over 500kΩ-to-1GΩ range and ±2.5°C temperature control accuracy
Malfatti, Mattia;Stoppa, David;Simoni, Andrea;Lorenzelli, Leandro;Adami, Andrea;Baschirotto, Andrea
2006-01-01
Abstract
An 8-channel gas-sensor array interface with temperature control circuit is integrated in 0.35µm CMOS technology. The read-out structure achieves a 0.5%-linearity and a SNR>48dB over 500kΩ-1GΩ sensor resistance range with a 114dB-DR. The temperature control systems maintain a 100°C gradient in the range 100°C-400°C with a 2.5°C accuracy. The power consumption is 27mW@3.3V.File in questo prodotto:
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