CCS803 Datasheet, PDF (3/7 Pages) ams AG – Cambridge CMOS Sensors (CCS) micro-hotplate technology

CC-000017-DS revision: 11
Datasheet for CCS803
Electrical characteristics
Parameters
Maximum target heater voltage (VH) ¹
Recommended ambient operating
temperature
Recommended ambient operating
humidity
Storage temperature range
Recommended heater voltage (VH)
Average power consumption (PAV) ^1.2
Heater resistance (RH)
Load resistance (RL)
Sensor resistance in clean air (Ra)
Conditions
Non-Condensing
VH = 1.6V
VH = 1.6V @ 50% RH
Min Typ Max
1.8
-5
50
15
95
-40
125
1.4 1.6
10.2
50
58
66
1
0.1 1.0
10
Units
V
o_C
%RH
o_C
V
mW
Ω
kΩ
kΩ
Notes:
1. When VH is produced by PWM of a VDD voltage above 1.8V the duty cycle (%) must not exceed 1.8V² /
VDD2
2. Based on 30s heater on time which includes a 20s warm-up period and a 10s measurement window
performed once in a 2min period for Alcohol breath analysis. Refer to application note CC-000614-AN
for more details.
Sensor Performance
Gas type
Ethanol (C2H5OH)
Test condition
Ra / R100ppm
Typical Sensitivity Range ^1,2
5 – 10
Notes:
1. 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.
2. Operating a new sensor in constant power mode at VH in the first 24 hours is recommended to
ensure sensor performance is stabilised.
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© Cambridge CMOS Sensors Ltd, Deanland House, Cowley Road, Cambridge, CB4 0DL, UK
Website: www.ccmoss.com
Telephone: [phone]
Date Issued: 26 May 2016