CCS801 Datasheet, PDF (3/7 Pages) ams AG – Cambridge CMOS Sensors (CCS) micro-hotplate technology provides

CC-000015-DS revision: 11
Datasheet for CCS801
Electrical characteristics
Parameters
Maximum heater voltage (V_H) ¹
Recommended ambient operating
temperature
Recommended ambient operating
humidity
Storage temperature range
Recommended heater voltage (V_H)
Average power consumption (P_AV)
Peak power consumption (P_DC)
Heater resistance (R_H)
Sensor resistance in clean air (R_a)
Lifetime
Conditions
Non-Condensing
Pulsed heating mode ²
Constant power mode V_H =
1.4V
V_H = 1.4V @ 50% RH
V_H = 1.4V @ 50% RH
V_H = 1.4V
Min Typ Max Units
1.8
V
-5
50
o_C
15
85
%RH
-40
125
o_C
1.4
V
0.9
mW
33
mW
50
58
66
Ω
0.2
1.4
MΩ
>5
years
Notes:
1. When V_H is produced by PWM of a V_DD above 1.8V the duty cycle (%) must not exceed 1.8V² / V_DD2
2. Based on a sensor measurement duty cycle of 2.5%, heater ON for 1.5secs (0.5s @ 1.6V, 1s @ 1.4V)
and then heater OFF for 58.5s (0V).
Sensor Performance
Sensitivity is defined as the sensor’s resistance in air (Ra) divided by the sensor’s resistance at a specific gas
concentration level at 50% relative humidity and 25°C ambient temperature (Rg). The following chart shows
the sensitivity of CCS801 to CO, Ethanol and Toluene (as an example VOC gas) in constant power mode with a
heater voltage (V_H) of 1.4V.
Operating a new sensor in constant power mode at V_H in the first 24 hours is recommended to ensure sensor
performance is stabilised.
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Website: www.ccmoss.com
Telephone: [phone]
Date Issued: 26 May 2016