iC-OG

8-BIT DIFFERENTIAL SCANNING OPTO ENCODER

Rev C1, Page 1/9

3.05mm × 5.1mm

12:1

1.2V

IN

IP

1.2V

ERROR

VCC

5V +/- 10%

2

18

3

17

4

16

15

14

13

12

11

9

8

20

7

6

1

100nF

100nF

C1

R3

27k

Ω

C2

R2

30

Ω

R1

10k

Ω

5

10

19

OUTPUT

ANALOG

(see TRACK 3)

TRACK 3

DP6

DN6

DP7

DN7

(see TRACK 0)

TRACK 1

DP4

DP2

(see TRACK 0)

TRACK 2

DN1

DN4

DP5

DN5

TRACK 0

AMPLIFIER

c2

1

iC-OG

DN0

DDC

DP1

AMPLIFIER

AMPLIFIER

PUSH-PULL

PUSH-PULL

COMPARATOR

c2

1

TEST

BIAS

(see TRACK 3)

TRACK 7

(see TRACK 3)

TRACK 6

(see TRACK 3)

TRACK 5

OUTPUT

OUTPUT

MONITOR

LED-CURRENT CONTROL

TRACK 4

COMPARATOR

DN3

DP3

DN2

DP0

D1

LED

LED

NER

NI0

NI1

S6

S7

TIN

AGND

CSR

ISET

NI2

S0

S1

S2

S3

S4

S5

TIP

VCC

GND

BLCC OGC

FEATURES

APPLICATIONS

Ë

Monolithic construction with integrated photodiodes ensures

excellent matching and technical reliability

Ë

Short track spacing of 600 µm

Ë

Elimination of dark currents through differential scanning

Ë

Photocurrent amplifier with high cut-off frequency

Ë

Comparators with precise signal-related hysteresis

Ë

Current-limited push-pull outputs

Ë

Adjustable LED current control for constant received power

Ë

Integrated power driver for the LED

Ë

LED current monitor with error message output

Ë

Integrated test aid

Ë

Low power consumption from 5V supply voltage

Ë

Available as a 20-pin BLCC or as chip

Ë

Options: extended temperature range of -40..110 °C,

customized packages, reticle assembly

Ë

Optical position decoding using

the principle of differential

scanning

Ë

Incremental and absolute

encoder with a resolution of up

to 8 bits

CHIP

BLOCK DIAGRAM

Copyright © 1999, 2010, iC-Haus

www.ichaus.com