iC-OC

INTEGRATING LIGHT-VOLTAGE CONVERTER

Rev D1, Page 1/9

FEATURES

o Two photosensors with integrating amplifiers

o Integration time can be set externally

o Internal shift register for chain connection

o Detection of low supply voltage

o TTL/CMOS-compatible logic inputs and outputs

o 5 V supply voltage

o Low power consumption

o Photosensors with 1 mm pitch;

active area ca. 0.97 mm x 0.47 mm (0.44 mm²)

APPLICATIONS

o Optical line sensors

o CCD substitute

CHIP

D1

D2

1.7 mm x 1.2 mm

BLOCK DIAGRAM

R

Q1

C

C

R

R

Q4

Q3

C

R

Q2

C

AOUT

CLK

DIN

DOUT

GND

VDD

+5V

1k

Ω

R1

SHIFT REGISTER

LOW VOLTAGE

INTEGRATOR 1

VDD − 1.2V

SC1

iC−OC

INTEGRATOR 2

SC2

VDD − 1.2V

SOUT1

SOUT2

ANALOGUE OUTPUT

INPUT

BUFFER

D1

D2

D

D

D

D

VOUT

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