BEAM POSITION DETECTOR
BPD-8L
OUTPUT SIGNALS
•
Sum of all four quadrants.
• Difference between lower
and upper halves.
• Difference between left and
right halves.
DESCRIPTION
The
BPD-8L
is designed for precise light beam
position detection. The
BPD-8L
provides accurate
measurement of small changes in the position of a
light beam. Its large quad cell design
accommodates both high resolution and larger area
light detection.
APPLICATIONS
• Military
• Industrial
• Instrumentation
ABSOLUTE MAXIMUM RATING
(TA)= 23°C UNLESS OTHERWISE NOTED
7
SPECTRAL SENSITIVITY
Sensitivity (10
4
V/W)
6
5
4
3
SYMBOL PARAMETER
V
s
T
STG
T
A
Voltage Supplies
Storage Temperature
Operating Temperature
MIN
±5
-25
0
TYP
± 15
MAX
± 18
+100
+70
UNITS
V
°C
°C
°C
2
1
0
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1050
1100
1150
1200
Wavelength (nm)
ELECTRO-OPTICAL CHARACTERISTICS RATING
SYMBOL
f
3db
G
s
G
lr
G
tb
CHARACTERISTIC
Cutoff Frequency
Output 1 = (I
1
+I
2
+I
3
+I
4
)
×
G
s
Output 2 = ((I
1
+I
2
)-(I
3
+I
4
))
×
G
lr
Output 3 = ((I
1
+I
4
)-(I
2
+I
3
))
×
G
tb
Cross Talk
Input Voltage Noise
Output Current Limit
(TA)= 23°C, V
S
= ± 12V UNLESS OTHERWISE NOTED
I
T
I
N
Iout
TEST CONDITIONS
V
s
= ± 15 V
V
s
= ± 15 V
V
s
= ± 15 V
V
s
= ± 15 V
V
s
= ± 15 V
V
s
= ± 15 V
V
s
= ± 15 V
MIN
.98×10
4
.98×10
4
.98×10
4
TYP
220
10
4
10
4
10
4
20
25
MAX
1.02×10
4
1.02×10
4
1.02×10
4
1
UNITS
KHz
%
nV/Hz
�½
mA
Information in this technical datasheet is believed to be correct and reliable. However, no responsibility is assumed for possible inaccuracies or omission. Specifications are
subject to change without notice.
Advanced Photonix Inc. 1240 Avenida Acaso, Camarillo CA 93012 • Phone (805) 987-0146 • Fax (805) 484-9935 •
www.advancedphotonix.com
ADVANCEDPHOTONIX [ ADVANCED PHOTONIX, INC. ]
