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PDF CCS803 Data sheet ( Hoja de datos )
| Número de pieza | CCS803 | |
| Descripción | Ultra-low power gas sensor | |
| Fabricantes | CMOS Sensors | |
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Hay una vista previa y un enlace de descarga de CCS803 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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CC-000017-DS revision: 11
Datasheet for CCS803
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.
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
Product Overview
The CCS803 is an ultra-low power MOX gas sensor for monitoring
Ethanol.
For CCS803 a supply voltage (VH) is provided to the integrated
micro-heater and the gas concentration can be correlated to the
change in resistance of the MOX sensing layer (RS).
VH can be set using a low-dropout (LDO) regulator or operated in
pulsed PWM mode to reduce power consumption. The sensor
resistance (RS) is typically determined using a series load resistor
(RL), a reference voltage (VREF), and an output voltage (VOUT) read
by an Analogue-to-Digital Converter (ADC). The reference voltage
(VREF) must only be enabled during the sensor reading.
CCS803 is supported in a compact 2 mm x 3 mm DFN (Dual Flat
No lead) package as standard.
Recommended Sensor
Configuration
Applications
Detection of Ethanol
Alcohol breathalyser in
consumer devices
Page | 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
1 page  
DFN package outline
CC-000017-DS revision: 11
Datasheet for CCS803
ALL DIMENSIONS ARE IN MM
DESCRIPTION
TOTAL THICKNESS
STAND OFF
LEAD WIDTH
BODY SIZE
LEAD PITCH
EP SIZE
LEAD LENGTH
SYMBOL
A
A1
b
D
E
e
J
K
L
L1
MIN
0.95
0
0.7
1.06
1.3
0.25
0.35
NOM
1.0
0.035
0.75
3 BSC
2 BSC
1.0 BSC
1.16
1.4
0.3
0.4
MAX
1.05
0.05
0.8
1.26
1.5
0.35
0.45
The recommended package footprint or landing pattern for CCS803 is shown below:
Pin 1 Corner
1
1.5
2
0.45
4 0.85
Note:
1. All dimensions are in mm
2. PCB land pattern in Green dash lines
3. Pin numbers are in Red
4. Add 0.05mm all around the nominal lead
width and length for the PCB land pattern
3 0.85
1.30
Top View
0.45
Page | 5
© 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
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet CCS803.PDF ] | |
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