HCPL-2731-300E

The HCPL-2731-300E is a 2-channel 8-pin surface-mount low input current High Gain Optocoupler contains a separated pair of GaAsP light emitting diodes optically coupled to a pair of integrated high gain photodetectors. It provides extremely high current transfer ratio and excellent input-output common mode transient immunity. A separate pin for the photodiodes and first gain stages (VCC) permits lower output saturation voltage and higher speed operation than possible with conventional photodarlington type optocouplers. In addition, VCC may be as low as 1.6V without adversely affecting the parametric performance. The outstanding high temperature performance of this split Darlington type output amplifier results from the inclusion of an integrated emitter-base bypass resistor which shunts photodiode and first stage leakage currents to ground. It has a 400% minimum CTR at an input current of only 0.5mA making it ideal for use in low input current applications such as MOS and CMOS.

• 1800% Typical high current transfer ratio
• 0.5mA Low input current
• 0.1V Low output saturation voltage
• 60mA High output current

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