S1880 Datasheet, PDF (1/4 Pages) Hamamatsu Corporation – Two-dimensional PSD Non-discrete position sensor utilizing photodiode surface resistance

PSD
Two-dimensional PSD
S1880, S2044
Non-discrete position sensor utilizing photodiode surface resistance
PSD (Position Sensitive Detector) is an optoelectronic position sensor utilizing photodiode surface resistance. Unlike discrete element detectors
such as CCD, PSD provides continuous position data and features high position resolution and high-speed response.
Features
l High position resolution
l Wide spectral response range
l High-speed response
l Simultaneous measurements of position and intensity
l Position is measured independent of light-spot size
l High reliability
Applications
l Optical position and angle sensing
l Remote optical control systems
l Automatic range finder systems
l Displacement and vibration monitors
l Laser beam alignment
l Medical equipment
s General ratings / Absolute maximum ratings
Parameter
Symbol
S1880
S2044
Unit
Package
-
Ceramic
Metal
-
Active area size
-
12 × 12
4.7 × 4.7
mm
Reverse voltage
VR Max.
20
V
Operating temperature
Topr
-10 to +60
°C
Storage temperature
Tstg
-20 to +80
°C
s Electrical and optical characteristics (Typ. Ta=25 °C, unless otherwise noted)
Parameter
Symbol
Condition
S1880
Min. Typ. Max.
S2044
Min. Typ. Max.
Unit
Spectral response range
λ
-
320 to
1060
-
-
320 to
1060
-
nm
Peak sensitivity wavelength
λp
-
920
-
-
920
-
nm
Photo sensitivity
S λ=λp
-
0.6
-
-
0.6
-
A/W
Interelectrode resistance *¹
Rie Vb=1 V
5
10
15
5
10
15
kΩ
Position
ZONE A
detection error *² ZONE B
E
-
±80 ±150
-
-
±150 ±250
-
±40 ±100
±70 ±150
µm
Saturation current
Ist
VR=5 V
RL=1 kΩ
-
0.5
-
-
0.5
-
mA
Dark current
ID VR=5 V
-
1.0
500
-
0.5
5
nA
Temp. coefficient of ID
TCID
-
1.15
-
-
1.15
- times/°C
Rise time
tr
VR=5 V
RL=1 kΩ
-
1.5
-
-
0.3
-
µs
Terminal capacitance
Ct
VR=5 V
f=10 kHz
-
300
-
-
45
-
pF
Position resolution *³
-
-
1.5
-
-
0.6
-
µm
*1: Measured between two output terminals opposite to each other, and the other terminals are open-circuited on measurement.
*2: The radius of Zones A and B depend on the product type. They are determined as follws:
Type No. ZONE A (mm)
ZONE B (mm)
S1880
2.5
5
S2044
0.9
4 × 4 (quadrate)
ZONE A
ZONE B
ACTIVE AREA
KPSDC0063EA
1