iC-LSC
12-CHANNEL ACTIVE PHOTOSENSOR ARRAY
Rev C1, Page 2/7
DESCRIPTION
The iC-LSC sensor array, coming with 12 indepen-
dent channels, is a general purpose optoelectronic
scanner made to suit a variety of encoding applica-
tions, such as rotary and linear encoders used for
motion control, robotics, brushless DC motor com-
mutation, power tools etc.
The sensor array features monolithically integrated
photosensors with active areas of 800 µm x 300 µm
each in combination with fast on-chip photocurrent
amplifiers, enabling an analog output at reasonable
signal strength to the circuit board.
The highside current source output construction
avoids a ground referenced signal and permits the
subsequent electronics to adjust the gain. In its sim-
plest form this is done by load resistors, for instance.
The spectral sensitivity range includes visible to near
infrared light, with the maximum sensitivity being
close to a wavelength of 700 nm.
Output currents of up to 50 µA are supplied under low
light conditions, for instance when illuminated at only
3 µW/mm
2
by an 850 nm LED. The photocurrent gain
is 46 dB typically.
PACKAGES
PAD LAYOUT
Chip size 2.80 mm x 2.76 mm
PAD FUNCTIONS
No. Name Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VCC
A1
B1
C1
D1
E1
F1
F2
E2
D2
C2
B2
A2
GND
+4...5.5 V Supply Voltage
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Highside Current Source Output
Ground
ICHAUS [ IC-HAUS GMBH ]
