Description
These devices are very low power consumption, high gain single and dual channel optocouplers. The HCPL-4701 represents the single channel 8-Pin DIP configuration and is pin compatible with the industry standard 6N139. The HCPL-4731 represents the dual channel 8-Pin DIP configuration and is pin compatible with the popular standard HCPL-2731. The HCPL-070A and HCPL-073A are the equivalent single and dual channel products in an SO-8 footprint. Each channel can be driven with an input current as low as 40 µA and has a typical current transfer ratio of 3500%.

Features
• Ultra low input current capability - 40 µA
• Specified for 3 V operation
    Typical power consumption: <1 mW
    Input power: <50 µW
    Output power: <500 µW
• Will operate with VCC as low as 1.6 V
• High current transfer ratio: 3500% at IF = 40 µA
• TTL and CMOS compatible output
• Specified ac and dc performance over temperature: 0°C to 70°C
• Safety approval:
    UL recognized – 3750 V rms for 1 minute and 5000 V rms* for 1 minute per UL1577
    CSA approved
    IEC/EN/DIN EN 60747-5-2 approved with VIORM = 630 V peak (Option 060) for HCPL-4701
• 8-pin product compatible with 6N138/6N139 and HCPL-2730/HCPL-2731
• Available in 8-Pin DIP and SOIC-8 footprint
• Through hole and surface mount assembly available

Applications
• Battery operated applications
• ISDN telephone interface
• Ground isolation between logic families – TTL, LSTTL, CMOS, HCMOS, HL-CMOS, LV-HCMOS
• Low input current line receiver
• EIA RS-232C line receiver
• Telephone ring detector
• AC line voltage status indicator – low input power dissipation
• Low power systems – ground isolation
• Portable system I/O interface