Document Number: 83623

For technical questions, contact: optocoupler.answers@vishay.com

www.vishay.com

Rev. 1.1, 04-Jun-04

1

Linear Optocoupler for Optical DAA in Telecommunications,

High Performance

IL350/351/358/359

Vishay Semiconductors

DESCRIPTION

The IL350/351/358/359 family of linear optocoupler consist

of an IRLED optically coupled to two photodiodes. The

emitter mechanically faces both diodes enabling them to

receive approximately an equal amount of infrared light. The

diodes produce a proportional amount of photocurrents. The

ratio of the photocurrents stays constant with high accuracy

when either the LED current changes or the ambient

temperature changes. Thus one can control the output diode

current optically by controlling the input photodiode current.

The IL350/351/358/359 optocouplers can be used with the

aid of operational amplifiers in closed loop conditions to

achieve highly linear and electrically isolated AC and or DC

signal amplifiers.

FEATURES

• 2.0 mm high SMD package

• High sensitivity (K1) at low operating LED current

• Couples AC and DC signals

• Low input-output capacitance

• Low distortion

• Lead (Pb)-free component

• Component in accordance to RoHS 2002/95/EC and

WEEE 2002/96/EC

APPLICATIONS

• Optical DAA for V.34 FAX/modem PCMCIA cards

• Digital telephone line isolation

Note

For additional information on the available options refer to option information.

i179028

1

2

3

4

5

6

7

8 K

A

N.C

N.C

K

A

K

A

ORDER INFORMATION

PART

REMARKS

IL350

Couples AC and DC signals

IL351

Couples AC and DC signals

IL358

Couples AC and DC signals

IL359

Couples AC and DC signals

ABSOLUTE MAXIMUM RATINGS

PARAMETER

TEST CONDITION

SYMBOL

VALUE

UNIT

INPUT

Reverse voltage

3.0

V

Forward current

30

mA

Surge current

pulse width < 10 ms

150

mA

Power dissipation

150

mW

Derate linearly from 25 °C

2.0

mW/°C

OUTPUT

Reverse voltage

15

V

Power dissipation

50

mW

Derate linearly from 25 °C

0.65

mW/°C

Junction temperature

100

°C