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* Optimizing High-Voltage Common Mode Rejection Performance of the APCL-x6xL Ultra-Low Power Optocouplers

From Avago Technologies

The ACPL-x6xL products are optically coupled ultra-low
power 10 MBd digital CMOS opto couplers that operate
with low power consumption, especially when the light
emitting diode (LED) operates at low current. When
a current is applied to drive the LED, common mode
rejection (CMR) can be aff ected by leakage paths inherent
to the LED. This paper describes the optimization of CMR
performance with split limiting resistors at the LED.

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