HCPL-2631 the dual-channel device is an optically connected logic gate that combines GaAsP light-emitting diodes with an integrated high gain photodetector. A photodiode collects photons in the detector, and the current is amplified by a high gain linear amplifier driving a Schottky clamped open-collector output transistor. Temperature, current, and voltage are all adjusted for in each circuit. For the HCPL-2631, the internal shield offers a guaranteed common mode transient immunity standard of 5000 V/s. The dual-channel optocoupler comes in an 8-pin DIP package.

The device is recommended for high-speed logic interfacing, input/output buffering, and for use as line receivers in environments that conventional line receivers cannot tolerate. It can be used for the digital programming of machine-control systems, motors and floating power supplies. The internal shield makes the HCPL-2631 ideal for use in extremely high ground or induced noise environments.

Pinout

Feature

•  Internal shield for high common-mode rejection(CMR) 

HCPL-2631: 10,000 V/μs

@ VCM= 50 V 

• High-Density packaging
• Low input current capability: 5 mA
• High speed: 10 MBd
• LSTTL and TTL compatible
• Guaranteed AC and DC performance Over-Temperature: -40°C to 85°C
• Recognized under the component program of UL1577 (File No. E55361) for dielectric withstand proof test voltages of 2500 Vrms, 1-minute

Applications

• Isolation of High-Speed Logic Systems
• Microprocessor System Interfaces
• Isolated Line Receiver
• Computer-Peripheral Interfaces
• Ground Loop Elimination
• Digital Isolation for A/D, D/A Conversion
• Power Transistor Isolation in Motor Drives

SPECIFICATIONS