DATASHEET
IR Sensing Solutions
DigiPile
TM
Family
Digital Thermopiles
Key Features
More reliable digital design
functionality than with analog – all
“Digi” models include Thermopile
infrared Detector and proprietary
digitizing circuit (ADC)
Reduced PCB space requirements
– by up to 20%
Integrated design - no need for
costly additional components like
low noise amplifier and associated
filters
High signal to noise ratio based on
our new thermopile chip with
increased signal strength
Improved EMI resistance
Low operating voltage, down to
2.4V
Low current consumption
Range of housings and sensing
areas to be offered
Option of model with integrated
lens, where a focusing system is
particularly useful
RoHS-compliant
The DigiPile
TM
is a Thermopile Detector with digital output. It combines a
time-proven MEMS-based sensing element with a fully integrated low noise
amplifier, A/D converter and integrated ambient temperature sensor. An
internal clock and control unit enable the DigiPile to open a dialogue with any
outside microprocessor without the need for costly additional components.
Along with the DigiPile’s more reliable digital design functionality, the move
from analog to digital provides OEM designers with a number of distinct
advantages including reduced PCB space requirements, improved EMI
resistance, and need for fewer additional components like low offset/low noise
amplifier and associated filters.
The DigiPile is specifically designed for a range of OEM applications including
thermometry, pyrometry, and non-contact temperature sensing. The DigiPile
will be offered in a range of housings and sensing areas with the first models
from Excelitas covering the popular TO-46 and TO-5 metal housings. We are
also offering a DigiPile model with a built-in lens, ideally suited to applications
like forehead thermometry where a focusing system is desirable.
Applications
Thermometry
Pyrometry
Non-contact, high-precision
temperature sensing
www.excelitas.com
Digipile Family 2011-05-31 page 1 of 4
DigiPile
TM
Family
Digital Thermopiles
DigiPile Models
Parameter
Operating Conditions
Operating Voltage
Supply Current
Operating Temperature
Storage Temperature
Thermopile Characteristics
Sensitive Area
Sensitivity
Sensitivity
Noise
Time Constant
A
S
40
S
100
0.51 x 0.51
290
2
400
2
8
45
0.51 x 0.51
150
2
200
2
8
45
0.51 x 0.51
67
3
85
3
8
45
counts
ms
mm
2
counts/K
T
obj
= 313K = 40°C, T
amb
= 298K = 25°C
T
obj
= 373K = 100°C, T
amb
= 298K = 25°C
T
obj
= 313K (=40°C), T
amb
= 298K (=25°C)
VDD
I
DD
T
o
T
s
2.4…3.6
11…15
-20…70
-40…100
2.4…3.6
11…15
-20…70
-40…100
2.4…3.6
11…15
-20…70
-40…100
V
µA
°C
°C
V
DD
= 3.3 V
1
Symbol
TPiS 1T 1252
TPS 1T 1254
TPS 1T 1256 L5.5
Unit
Remarks / Conditions
Ambient Temperature sensor Characteristics
Sensitivity of T
amb
Count @ T
amb
= 25°C
Optical Characteristics
Field of View
Optical Axis
Average Filter
Transmittance
Cut on Wavelength
Electrical Characteristics
ADC Resolution T
obj
ADC Resolution T
amb
ADC Sensitivity of T
obj
ADC Offset T
obj
Input Low Voltage
Input High Voltage
Pull Down Current
Pull Up Current
LPF Cut-Off Frequency
1
2
90
7800
90
7800
90
7800
counts/K
counts
Linear for T
amb
from 0°C to 90°C
84
0 +/- 10
T
A
λ (5 %)
>75
5.5
56
0 +/- 10
>75
5.5
5
0 +/- 2
50
-
Degree
Degree
%
µm
At 50% intensity points
Wavelength Range from 7.5 µm to 13.5 µm
At 25°C
17
14
0.7…0.9
64500
V
IL
V
IH
0.2 V
DD
0.8 V
DD
200
130
8
0.7…0.9
64500
0.2 V
DD
0.8 V
DD
200
130
8
0.7…0.9
64500
0.2 V
DD
0.8 V
DD
200
130
8
Bits
Bits
µV/count
counts
V
V
µA
µA
Hz
Max Count = 2
17
Max Count = 2
14
Direct link pin to V
DD
Direct link pin to V
SS
The electrical parameters may vary from specified values accordance with their temperature dependence.
With standard filter (LWP, cut-on 5.5 µm)
3
Uncoated lens
Digipile Family 2011-05-31 page 2 of 4
www.excelitas.com
DigiPile
TM
Family
Digital Thermopiles
Physical Configuration
TPiS 1T 1252
TPS 1T 1254
TPS 1T 1256
Digipile Family 2011-05-31 page 3 of 4
DigiPile
TM
Family
Digital Thermopiles
TPiS 1T 1252
Filter Identifier
Cut-on wavelength (CWL)
Cut-on tolerance range
Average Transmittance from 7.5μm to 13.5μm
Average Transmittance from visual to 5μm
Substrate material
5.5 µm
± 0.3 µm
> 70 %
< 0.5 %
Silicon
TPS 1T 1254
Filter Identifier
G12
Substrate material
Silicon, uncoated
TPS 1T 1256
Excelitas Technologies
European Headquarters
Asia Headquarters
22001 Dumberry Road
Excelitas Technologies
Excelitas Technologies
Vaudreuil-Dorion, Quebec
GmbH & Co. KG
Bldg.4, Lane 67, Li Bing Rd
Canada J7V 8P7
Wenzel-Jaksch-Str. 31
Zhangjiang Hi-Tech Park,
Telephone: (+1)
D-65199 Wiesbaden
Shanghai 201203, PRC
450.424.3300
Germany
Telephone: + 86 (21)
Toll-free: (+1) 800.775.6786
Telephone: (+49) 611 492 430
38769510
Fax: (+1) 450.424.3345
Fax: (+49) 611 492 165
Fax: +86 (21) 50791316
detection@excelitas.com
For a complete listing of our global offices, visit
www.excelitas.com/ContactUs
© 2011 Excelitas Technologies Corp. All rights reserved. The Excelitas logo and design are registered trademarks of Excelitas Technologies Corp. All other trademarks not owned by Excelitas Technologies or its subsidiaries that are
depicted herein are the property of their respective owners. Excelitas reserves the right to change this document at any time without notice and disclaims liability for editorial, pictorial or typographical errors.
Digipile Family 2011-05-31 page 4 of 4
嵌入式系统
