8102805PA

Overview

The Broadcom Limited 8102805PA is a high-speed, dual-channel optocoupler housed in an 8-pin PDIP package. It features open collector outputs with Schottky clamping for enhanced switching performance. Key electrical parameters include a data rate of 10 Mb/s and a common-mode transient immunity of 1 kV/µs. The device provides galvanic isolation ratings of 1500 Vdc or 2500 Vrms depending on the specific certification standard. It operates within a temperature range of -55°C to +125°C and supports a forward current of 20 mA with a typical forward voltage of 1.5 V.

Feature Summary

• Hermetically sealed construction ensures reliability in harsh environments
• Schottky-clamped output design minimizes storage time for fast switching
• Dual-channel configuration allows independent signal isolation
• High common-mode transient immunity protects against noise interference

Applications

• High-speed digital communication interfaces requiring galvanic isolation
• Industrial control systems with noisy electrical environments
• Power supply feedback loops for isolated voltage regulation
• Microprocessor input/output isolation circuits

Procurement Notes

Verify the specific isolation rating required by your application, as datasheets may list both 1500 Vdc and 2500 Vrms values. Confirm that the 8-DIP package fits your PCB layout constraints. Ensure the operating temperature range meets your system's environmental specifications. Check for RoHS compliance status if restricted substances are prohibited in your manufacturing process.

Selection Notes

Select this component when high-speed data transmission up to 10 Mb/s is necessary alongside robust electrical isolation. The open collector output requires external pull-up resistors; ensure your circuit design accommodates this requirement. Consider the wide operating temperature range if the device will be used in extreme thermal conditions. Verify that the input current requirements align with your driving logic levels.

Part Context

This part belongs to the 8102 series of high-speed optocouplers from Broadcom Limited. It is designed for applications demanding rapid signal transfer between isolated circuits. The hermetic seal distinguishes it from non-hermetic plastic variants, offering superior protection against moisture and contaminants. It serves as a critical interface component in systems where signal integrity and safety isolation are paramount.

Replacement Considerations

Direct replacements must match the 8-DIP package, dual-channel configuration, and 10 Mb/s speed rating. Verify that substitute components offer comparable common-mode transient immunity and isolation voltages. Ensure the replacement also features open collector outputs with Schottky clamping to maintain identical switching characteristics. Consult official manufacturer cross-reference lists for validated alternatives.