A CMOS monolithically integrated gas sensor array with electronics for temperature control and signal interfacing

A monolithically integrated gas sensor array with conventional CMOS electronics has been developed. Circuitry includes the heater driver for the temperature control and the signal interface electronics for inspection of the four sensors in the array. Because of its characteristics as robustness, small, size, low price and future capabilities with the adequate signal processing the system would be able to cover most of today's markets considered for gas sensors.