CCS801 Datasheet, PDF (5/7 Pages) ams AG – Cambridge CMOS Sensors (CCS) micro-hotplate technology provides

CC-000015-DS revision: 11
Datasheet for CCS801
4. An ADC input is required on the MCU to measure the sensor resistance, the recommended ADC
reference voltage (V_REF) depends on what voltage range the ADC supports. Control of the sensor bias
(V_REF) [e.g. by using an external MOSFET switch (p-channel)] is required to power the sensor bias only
when needed for the ADC measurements, ensuring that all reference voltages are stable for the
measurement.
5. A minimum load resistor (R_L) value of 200kΩ is recommended.
Pin Assignment
Pin No
1
2
3
4
Name
Sensor+
Heater+
Sensor-
Heater-
Description
Sensor output (V_OUT)
Heater Input (V_H)
Connect to Ground or 0V
Connect to Ground or 0V
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Date Issued: 26 May 2016