Description
These diode-transistor optocouplers use an insulating layer between a LED and an integrated photodetector to provide electrical insulation between input and output. Separate connections for the photodiode bias and output-transistor collector increase the speed up to a hundred times that of a conventional phototransistor coupler by reducing the base-collector capacitance. These single channel optocouplers are available in 8-Pin DIP, SO-8 and Widebody package configurations.

Features
• High speed: 1 Mb/s
• TTL compatible
• Available in 8-Pin DIP, SO-8, widebody packages
• Open collector output
• Safety approval
UL Recognized – 3750 Vrms for 1 minute (5000 Vrms for 1 minute for HCNW and Option 020 devices) per UL1577 CSA Approved
IEC/EN/DIN EN 60747-5-2 Approved
– VIORM = 560 V peak for SO8 devices
– VIORM = 630 V peak for DIP 300mil devices
– VIORM = 1414 V peak for DIP 400mil (widebody) devices
• Dual channel version available (253X/053X/0534)

Applications
• High voltage insulation
• Video signal isolation
• Line receivers
• Feedback element in switched mode power supplies
• High speed logic ground isolation
– TTL/TTL, TTL/CMOS, TTL/LSTTL
• Replaces pulse transformers
• Replaces slow phototransistor isolators
• Analog signal ground isolation