CC-000017-DS revision: 11

Datasheet for CCS803

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

CCS803 Ultra-low power gas sensor for Ethanol detection

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 application are available for alcohol breathalyser use

case.

Product Overview

The CCS803 is an ultra-low power MOX gas sensor for monitoring

Ethanol.

micro-heater and the gas concentration can be correlated to the

change in resistance of the MOX sensing layer (RS).

pulsed PWM mode to reduce power consumption. The sensor

CCS803 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 to Ethanol



Fast heating time <25ms

for quick response



Compact 2mm x 3mm

DFN package for small

form factor designs

Recommended Sensor

Configuration

Applications



Detection of Ethanol



Alcohol breathalyser in

consumer devices