HCPL0638

Logic Output Optoisolators Overview

The HCPL0638 is a high-speed logic gate optocoupler featuring an AlGaAS LED coupled to an integrated photo-detector. It operates at 10 Mbps with a 3750 Vrms isolation voltage and 10 kV/µs CMTI. The device provides two channels in an 8-SOIC package, utilizing open collector outputs with Schottky clamping for wired OR capability.

Logic Output Optoisolators Feature Summary

• High-speed data transmission capability
• Integrated noise shield for superior common mode rejection
• Open collector output permitting wired OR configurations

Logic Output Optoisolators Applications

• Ground loop elimination
• LSTTL to TTL or CMOS interfacing
• Data multiplexing systems

Logic Output Optoisolators Procurement Notes

Verify current production status as the component may be discontinued by Fairchild Semiconductor. Confirm onsemi availability and check for RoHS compliance details. Ensure the specific SOIC-8 package matches design requirements before procurement.

Logic Output Optoisolators Selection Notes

Select this component for applications requiring high-speed digital isolation between LSTTL and CMOS logic families. The open collector output allows flexible wiring configurations. Verify thermal performance within the -40°C to +85°C operating range.

Logic Output Optoisolators Part Context

Part of the HCPL06XX series of high-speed optocouplers. This series includes variants with different output structures such as bipolar transistors or CMOS processes. The HCPL0638 specifically offers dual-channel logic gate output with strobable functionality.

Logic Output Optoisolators Replacement Considerations

Check for direct substitutes within the HCPL06XX family. Verify pin compatibility and electrical specifications against alternative high-speed optocouplers from other manufacturers if sourcing is restricted.