iC-LSB

8-CHANNEL ACTIVE PHOTOSENSOR ARRAY

Rev C1, Page 2/7

DESCRIPTION

The iC-LSB sensor array, coming with 8 independent

channels, is a general purpose optoelectronic scan-

ner made to suit a variety of encoding applications,

such as rotary and linear encoders used for motion

control, robotics, 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

is 46 dB typically.

PACKAGES

PAD LAYOUT

Chip size 2.80 mm x 1.96 mm

PAD FUNCTIONS

No. Name Function

1 VCC

+4...5.5 V Supply Voltage

2 A1

Highside Current Source Output

3 B1

Highside Current Source Output

4 C1

Highside Current Source Output

5 D1

Highside Current Source Output

6 D2

Highside Current Source Output

7 C2

Highside Current Source Output

8 B2

Highside Current Source Output

9 A2

Highside Current Source Output

10 GND

Ground