DUAL AXIS PSD SUM AND DIFFERENCE AMPLIFIER SPECIFICATION
The
DL100-7PCBA3
is a dual axis position
sensing diode with sum and difference amplifiers. It
contains internal bias circuitry of 14.3 volts for the
position sensing diode, or the user can externally
apply a bias voltage. The board has a 9 pin
connector for easy hook up.
Outputs are bipolar voltage analogs of the X and Y
position of the light spot centroid, as well as the
total X current and the total Y current. The sum
outputs may be used to externally normalize the X
and Y difference outputs. By normalizing the X and
Y signals, they become independent of fluctuations
in light spot intensity.
SPECIFICATIONS
Power supply voltage V
s
: min ± 10 volts;
max ± 18 volts; recommended ± 15 volts
Maximum ± output voltage: +V
s
–3; –V
s
+3
Maximum output current limit: 25 ma
Maximum external bias: –V
s
–10 volts;
+V
s
+10 volts
Maximum slew rate: 10 volts per microsecond
Theoretical noise: 15
nV Hz
–1/2
Operating temperature: 0 to 70°C
–3db bandwidth: 257 kHz
Resolution (bias dependent): ≥ 0.5 µm
Linearity (bias dependent): ±1% of full scale
Maximum light intensity: 1.5 W/cm
2
See DL100-7PCBA application notes.
Version: 111306
CATHODE 1
ANODE 1
–15V
CATHODE 2
ANODE 2
DIFF
SUM
+15V
–15V
AGND
J1
– PHDBIAS (OPTIONAL) PIN 1
V(y) DIFFERENCE PIN 3
V(y) SUM PIN 5
+15V PIN 7
–15V PIN 9
ANALOG GROUND PIN 8
V(x) DIFFERENCE PIN 4
V(x) SUM PIN 6
SUM
J2
+15V
+ PHDBIAS (OPTIONAL) PIN 2
DATA SHEET
DL100-7PCBA3
PIN
1
2
3
4
5
6
7
8
9
FUNCTION
OPTIONAL –BIAS OPTICAL
OPTIONAL +BIAS CENTER
Y VOLTAGE OUT
X VOLTAGE OUT
ANODE SUM (Y)
CATHODE SUM (X)
0.56
+15 VOLTS
SIGNAL AND
POWER COMMON
0.13
–15 VOLTS
0.13
0.76
0.10 DIA 2 PLACES
1.65
0.13
0.065
Y
1 2 34 5 6 78 9
0.13
1.13
PINS 1-9 ON 0.100" CENTERS
ALL DIMENSIONS IN INCHES
Mechanical Outline
PSS-DL100-7-CER
DIFF
Block Diagram
Page 1 of 3
5700 Corsa Avenue, #105 • Westlake Village, CA 91362
Tel: (818) 706-3400 • Fax (818) 889-7053
Email: sales@pacific-sensor.com • www.pacific-sensor.com
PACIFIC [ PACIFIC SILICON SENSOR,INC. ]
