A CMOS Interface for a Gas-Sensor Array with a 0.5%-Linearity over 500k/spl Omega/-to-1G/spl Omega/Range and 2.5/spl deg/C Temperature Control Accuracy

M Malfatti, D Stoppa, A Simoni… - … Solid State Circuits …, 2006 - ieeexplore.ieee.org
The interface IC includes 8 read-out channels and 2 closed-loop temperature control
circuits, is fabricated in 0.35 μm 2P4M CMOS and dissipates 27mW from a 3.3 V supply. The …

A low-cost circuit for high-value resistive sensors varying over a wide range

A Depari, A Flammini, D Marioli, S Rosa… - Measurement Science …, 2006 - iopscience.iop.org
In this paper, a low-cost interface for high-value resistive sensors ranging from kΩ to GΩ is
presented. The proposed circuit acts as a'resistance-to-period converter'and overcomes …

A high dynamic range CMOS interface for resistive gas sensor array with gradient temperature control

M Malfatti, M Perenzoni, D Stoppa… - 2006 IEEE …, 2006 - ieeexplore.ieee.org
A complete front-end system for resistive gas sensor array is presented. The interface is
composed by 8 read-out channels and by 2 closed-loop temperature control circuits. The IC …

An uncalibrated 141dB dynamic-range CMOS gas-sensor interface with 16-Bit digital output

M Grassi, P Malcovati… - 2006 Proceedings of the …, 2006 - ieeexplore.ieee.org
In this paper a low-cost CMOS wide-dynamic-range interface for resistive gas sensors is
presented. The circuit is based on resistance-to-time conversion. The state of art of this …

A high precision temperature control system for CMOS integrated wide range resistive gas sensors

G Ferri, V Stornelli - Analog Integrated Circuits and Signal Processing, 2006 - Springer
In this work we present an integrated interface for wide range resistive gas sensors able to
heat the sensor resistance through a constant power heater block at 0° C–350° C operating …

Wide-range integrated gas sensor interface based on a resistance-to-number converter technique with the oscillator decoupled from the input device

M Grassi, P Malcovati… - 2006 IEEE International …, 2006 - ieeexplore.ieee.org
In this paper an integrated wide-range gas sensor interface based on a resistance-to-
number converter is presented. The circuit in transistor level simulations achieves a …

A new modular approach for low-cost electronic noses

A Depari, P Ferrari, A Flammini… - 2006 IEEE …, 2006 - ieeexplore.ieee.org
Electronic noses are used for important applications as food processing, pollution control
and security system, as well as for laboratory works, as new sensors characterization. In the …