Vishay | IL300

The IL300 is a Single channel high gain linear optocoupler consists of an AlGaAs IRLED irradiating an isolated feedback and an output PIN photodiode in a bifurcated arrangement.

The feedback photodiode captures a percentage of the LEDs flux and generates a control signal (IP1) that can be used to servo the LED drive current. This technique compensates for the LED’s non-linear, time, and temperature characteristics. The output PIN photodiode produces an output signal (IP2) that is linearly related to the servo optical flux created by the LED.

Features:

• Couples AC and DC signals
• 0.01 % servo linearity
• Wide bandwidth, > 200 kHz
• High gain stability, ± 0.005 %/°C typically
• Low input-output capacitance
• Low power consumption, < 15 mW
• Isolation test voltage, 5300 VRMS, 1 s
• Internal insulation distance, > 0.4 mm
• Compliant to RoHS Directive 2002/95/EC and in accordance to WEEE 2002/96/EC

Applications:

• Power supply feedback voltage/current
• Medical sensor isolation
• Audio signal interfacing
• Isolated process control transducers
• Digital telephone isolation