LTM2895IY#PBF

Digital Isolators Overview

The LTM2895IY#PBF is a high-speed isolated micro-module SPI interface designed for isolating DAC control signals. It integrates a 6000VRMS digital isolator with nine channels and supports data rates up to 100Mbps. The device features a common-mode transient immunity of 50kV/µs and operates within a supply voltage range of 3V to 5.5V. Packaged in a 36-BGA (15x6.25mm) format, it provides galvanic isolation between the SPI master and downstream components.

Digital Isolators Feature Summary

• Integrates high-speed SPI interface with integrated digital isolation
• Provides 6000VRMS galvanic isolation barrier
• Supports bidirectional communication for DAC control applications

Digital Isolators Applications

• Isolating LTC general-purpose DAC families
• General purpose SPI interface isolation
• Industrial control systems requiring high CMTI

Digital Isolators Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence. Confirm the 36-BGA package dimensions match the PCB footprint requirements. Ensure the design supports the required 3V to 5.5V supply rails. Check that the 50kV/µs CMTI specification meets the noise environment constraints of the target application.

Digital Isolators Selection Notes

Select this component when a compact solution is needed to isolate SPI commands from DACs. The integrated micro-module design reduces board space compared to discrete isolator and buffer combinations. Consider the 9-channel configuration for complex multi-DAC setups. Verify that the 100Mbps speed is sufficient for the system's update rate requirements.

Digital Isolators Part Context

This part belongs to the LTM2895 series of isolated micro-modules. It is distinct from standard logic isolators by combining the interface protocol handling with the isolation barrier in a single package. The DC2589A is a demonstration board used to evaluate this specific module's performance.

Digital Isolators Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Discrete solutions using separate isolators and buffers may require significant layout changes.