CCS803A-COPS

The CCS803A-COPS is an ultra-low power MOX Gas Sensor for monitoring Ethanol. The sensitivity of CCS803 to Ethanol is optimised by adapting the supply voltage (VH) of the integrated micro-heater and the gas concentration can be correlated to the change in resistance of the MOX sensing layer (Rs). VH can be set using a low-dropout (LDO) regulator or operated in pulsed PWM mode to reduce power consumption. The sensor resistance (Rs) is determined using a series load resistor (RL), a reference voltage (VREF) and an output voltage (VOUT) read by an Analogue-to-Digital Converter (ADC). The inherent design of this sensor enables ultralow power consumption for battery operated portable handheld devices. The device is mainly used in Consumer alcohol breathalyser in consumer devices.

• High sensitivity and fast response time
• Ethanol (C2H5OH) gas type
• R0/R100ppm Test condition
• 5 to 10 Sensitivity factor