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Datasheet A2TPMI
Electrical Characteristics (continued)
Symbol Parameter
Min
Typ
Max
Unit
V
Conditions
VoL
VoH
Low level output voltage
High level output voltage
0.5
Output current £ 2mA
output current ³ -2mA
VDD
-
V
0.6V
Reference Voltage
VRef
Reference voltage
1.223
1.225
1.227
V
RL > 1MW, TA = 25°C
Temperature coefficient of refer-
ence voltage
TCVRef
ppm K-1
±30
±100
AC Characteristics
Unless otherwise indicated, all limits specified for TA = 25°C, VDD = +5V
Symbol Parameter
Min
Typ
Max
120
1
Unit
Conditions
InN
tStrt
tlat
V1 Input referred voltage noise
rms value
nV/ÖHz
s
Response Time after Power On
Latency time for VTobj
Response Time
75
ms
tresp
90
150
ms
Thermopile Characteristics
Symbol Parameter
Min
Typ
Max
Unit
Conditions
3-type chip (TPS 33x)
S
N
t
Sensitive (absorber) area
Noise voltage
0.7x0.7
38
mm2
nV/ÖHz
ms
Time constant
25
VTobj / VTamb Characteristics
The VTobj and the VTamb characteristics of thermopile sensors depends not only on object and ambient
temperature but on several other factors like object size to spot size relation, ambient temperature com-
pensation behaviour or optical filter characteristics. Therefore it is not possible to specify a general VTobj
and VTamb characteristic. Those characteristics will be specified application specific in a separate cus-
tomer specification.
A2TPMI Datasheet Rev4
Page 6 of 21
Rev. Oct 2003
PERKINELMER [ PERKINELMER OPTOELECTRONICS ]
