LTC4310CDD-2#PBF

Overview

The LTC4310CDD-2#PBF is a hot-swappable I²C isolator manufactured by Analog Devices Inc. It provides bidirectional I²C communications between two I²C buses whose grounds are isolated from one another. The device supports standard and fast-mode I²C protocols, enabling reliable data transfer across isolated domains while allowing bus connections or disconnections without power cycling.

Feature Summary

• Provides galvanic isolation between two I²C bus domains with independent ground references
• Supports hot-swappable operation for safe connection and disconnection of bus segments
• Enables bidirectional communication compatible with standard and fast-mode I²C protocols

Applications

• Isolating I²C buses in systems with separate ground potentials
• Protecting sensitive control circuits from bus faults during hot-swap events
• Segmenting large I²C networks to reduce capacitance and improve signal integrity

Procurement Notes

Verify the specific suffix CDD-2 against the official Analog Devices datasheet to confirm package type and isolation ratings. Ensure compatibility with system voltage levels and I²C speed requirements before procurement. Check current availability status as supply may be restricted.

Selection Notes

Select this component when galvanic isolation is required for I²C communication between domains with different ground potentials. It is suitable for applications requiring hot-swap capability on I²C buses. Verify that the isolation voltage rating meets system safety requirements and that the DFN-8 package fits the PCB layout constraints.

Part Context

This part belongs to the LTC4310 series of hot-swappable I²C isolators from Analog Devices. It is designed to isolate I²C buses while maintaining full protocol functionality. The device addresses challenges associated with connecting I²C devices across isolated boundaries, such as ground loops and capacitive loading issues common in multi-domain systems.

Replacement Considerations

LTC4310IDD-2#PBF is a verified alternative within the same product family, offering similar hot-swappable I²C isolation capabilities. Verify pinout compatibility and electrical specifications before substitution.