The ACPL-227 is a DC-input dual-channel half-pitch phototransistor optocoupler that contains two light-emitting diodes optically coupled to two separate phototransistors. It is packaged in an 8-pin SO package. Likewise, the ACPL-247 is a DC-input quad-channel halfpitch phototransistor optocoupler that contains four lightemitting diodes optically coupled to four separate phototransistors. It is packaged in a 16-pin SO package. For both devices, the input-output isolation voltage is rated at 3750Vrms. Response time, tr, is 2 µs typically, while minimum CTR is 50 percent at input current of 5 mA.
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