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High CMR Line Receiver
Optocouplers
Technical Data
HCPL-2602
HCPL-2612
CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to
prevent damage and/or degradation which may be induced by ESD.
Functional Diagram
Features
• 1000 V/µs Minimum Common
Mode Rejection (CMR) at
VCM= 50 V for HCPL-2602
and 3.5 kV/µs Minimum
CMR at VCM= 300 V for
HCPL-2612
• Line Termination Included –
No Extra Circuitry Required
• Accepts a Broad Range of
Drive Conditions
• LED Protection Minimizes
LED Efficiency Degradation
• High Speed: 10 MBd
(Limited by Transmission
Line in Many Applications)
• Guaranteed AC and DC
Performance over
Temperature: 0°C to 70°C
• External Base Lead Allows
“LED Peaking” and LED
Current Adjustment
• Safety Approval
UL Recognized – 2500 V rms
for 1 Minute
CSA Approved
• MIL-STD-1772 Version
Available (HCPL-1930/1)
A 0.1 µF bypass capacitor must be connected between pins 5 and 8.
Applications
• Isolated Line Receiver
• Computer-Peripheral
Interface
• Microprocessor System
Interface
• Digital Isolation for A/D,
D/A Conversion
• Current Sensing
• Instrument Input/Output
Isolation
• Ground Loop Elimination
• Pulse Transformer
Replacement
• Power Transistor Isolation
in Motor Drives
Description
The HCPL-2602/12 are optically
coupled line receivers that
combine a GaAsP light emitting
diode, an input current regulator
and an integrated high gain photo
detector. The input regulator
serves as a line termination for
line receiver applications. It
clamps the line voltage and
regulates the LED current so line
reflections do not interfere with
circuit performance.
The regulator allows a typical
LED current of 8.5 mA before it
starts to shunt excess current.
The output of the detector IC is