1L20- Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – High Linearity Position Sensing Detector

High Linearity
Position Sensing Detector
1L20 -
one dimensional PSD
The SiTek 1L20 PSD functions accor-
ding to the Lateral Effect-Photodiode prin-
ciple. It is an analogue device and therefore
displays excellent position resolution. The
resolution is determined by the system sig-
nal-to noise ratio.
The 1L20 is operated in the biased mode.
Typical applications include: distance and
height measurement, alignment, position
and motion measurements and vibration
studies.
Special UV- or YAG-enhanced and
Nuclear versions are available.
Parameter
Active area
Position non-linearity
Detector resistance
Dark current
Noise current
Responsivity
Capacitance
Rise time (10-90%)
Reverse voltage (bias)
Thermal drift
Maximum ratings
Reverse voltage
Operating temperature
Storage temperature
Symbol
Rdet
Id
Inoise
r
Cj
tr
Vr
Min.
40
5
Typ.
20 x 3
0,1
50
50
0,5
0,63
45
0,5
15
20
Max.
0,2
80
250
1,0
55
1,0
20
100
VR-max
30
Toper
70
Tstg
100
Test conditions:
Package:
Room temperature 23°C. Reverse voltage 15 V. Light-source wavelength 940 nm.
Position non-linearity and thermal drift are valid within 80% of the detector length.
22-pin ceramic DIL-package, 31,8 x 9,9 mm², with protective window.
Unit
mm²
%(±)
ký
nA
pA/Å¡Hz
A/W
pF
µs
V
ppm/°C
V
°C
°C