Dual Channel, High Speed Logic Interface Optocoupler

The HCPL-2533 is a dual channel Optocoupler which is specifed for use in LSTTL-to-LSTTL and TTL-to-LSTTL Logic Interfaces A nominal 8 mA LSTTL sink current through the input LED will provide enough output current for proper operation of 1 LSTTL Gate under worst-case conditions when used in the recommended circuits. The CTR of the HCPL-2533 is 15% minimum at IF = 8 mA. The HCPL-2533 contains a pair of light emitting Diodes and integrated photon detectors with a 3000 Vdc withstand test between input and output. Separate connection for the Photodiode bias and output tran- sistor collector reduce the base-collector capacitance, giving improved speed compared with conventional Phototransistor couplers. By Avago Technologies