CC-000015-DS revision: 11

Datasheet for CCS801

P a g e

| 1

© Cambridge CMOS Sensors Ltd, Deanland House, Cowley Road, Cambridge, CB4 0DL, UK

Website: www.ccmoss.com

Telephone: +44 1223 395 551

Date Issued: 26 May 2016

CCS801 Ultra-low power multi-gas sensor for indoor air quality

Cambridge CMOS Sensors (CCS) micro-hotplate technology provides a

unique silicon platform for the CCS80x range of Metal Oxide (MOX) gas

sensors. These devices enable sensor miniaturisation, have ultra-low

power consumption and provide fast response times due to the ability to

heat the micro-hotplate very quickly.

The micro-hotplates are fabricated using a robust silicon dioxide

membrane and include an embedded tungsten heating element to heat

the MOX based sensing material. The MOX sensing material can be

heated up to 500°C to allow the electrical resistance of the MOX sensor

to be monitored to detect the target gas. By exploiting the fast heater

cycling times, temperature modulation techniques can be used to

reduce the device power consumption and implement advanced gas

sensing methods.

Software libraries containing proprietary algorithms and example

Android applications are available for indoor air quality monitoring and

alcohol breathalyser use cases.

Product Overview

CCS801 is an ultra-low power MOX multi-gas sensor for monitoring

indoor air quality including Carbon Monoxide (CO) and a wide range of

Volatile Organic Compounds (VOCs) such as Ethanol. CCS801 can be

levels in real world environments, where the main source of VOCs is

from humans.

heater and the gas concentration can be correlated to the change in

resistance of the MOX sensing layer (RS).

constant or pulsed PWM mode to reduce power consumption. The

with an Analogue-to-Digital Converter (ADC). The reference voltage

CCS801 is supported in a compact 2 mm x 3 mm DFN (Dual Flat No lead)

package as standard.

Key Benefits



Ultra-low power

consumption - ideal for

battery operated devices



High sensitivity



Fast heating time <15ms

for quick response



Compact 2mm x 3mm

DFN package for small

form factor designs

3

4

1

2

GND

GND

Gas

Recommended Sensor

Configuration

Applications



Total VOC sensor for

Indoor air quality

monitoring