Datasheet
Electrical Characteristics (continued)
Symbol Parameter
V
oL
V
oH
Low level output voltage
High level output voltage
V
DD
-
0.6V
A2TPMI
Ô
Min
Typ
Max
0.5
Unit
V
V
Conditions
Output current
£
2mA
output current
³
-2mA
Reference Voltage
V
Ref
TC
VRef
Reference voltage
Temperature coefficient of refer-
ence voltage
1.223
1.225
±30
1.227
±100
V
ppm K
-1
R
L
> 1MW, T
A
= 25°C
AC Characteristics
Unless otherwise indicated, all limits specified for
T
A
= 25°C, V
DD
= +5V
Symbol Parameter
In
N
t
Strt
t
lat
t
resp
V1 Input referred voltage noise
Response Time after Power On
Latency time for V
Tobj
Response Time
90
Min
Typ
Max
120
1
75
150
Unit
nV/ÖHz
s
ms
ms
Conditions
rms value
Thermopile Characteristics
Symbol Parameter
Min
Typ
Max
Unit
Conditions
3-type chip (TPS 33x)
S
N
Sensitive (absorber) area
Noise voltage
Time constant
0.7x0.7
38
25
mm
2
nV/ÖHz
ms
t
V
Tobj
/ V
Tamb
Characteristics
The V
Tobj
and the V
Tamb
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 V
Tobj
and V
Tamb
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 ]
