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LTM2881IY-5
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Product Detailed Parameters
- Description：DG ISO 2.5KV 2CH RS422 32-BBGA
- Series：µModule®
- Mfr：Analog Devices Inc.
- Package：Tray
- Number of Channels：2
- Voltage - Isolation：2500Vrms
- Rise / Fall Time (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：32-BBGA Module
- Supplier Device Package：32-BGA (15x11.25)
- Grade：-
- Qualification：-
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Overview
The LTM2881IY-5 is a complete galvanically isolated full-duplex RS485/RS422 μModule transceiver manufactured by Analog Devices Inc. It integrates all necessary components for high-performance serial communication without requiring external parts. The device supports data rates up to 20 Mbps and provides 2500Vrms isolation voltage with a common mode transient immunity of 30kV/µs. It operates on a single 5V supply, features a 32-BBGA package, and supports half/full duplex modes including PROFIBUS protocols.
Feature Summary
- Integrates a complete isolated transceiver solution within a single μModule package
- Provides high-voltage galvanic isolation for robust noise immunity
- Supports standard RS422 and RS485 communication protocols
- Delivers high-speed data transmission capabilities
Applications
- Industrial automation systems requiring isolated serial communication
- PROFIBUS network interfaces
- Medical equipment with strict isolation safety requirements
- Test and measurement instrumentation
Procurement Notes
Verify the specific suffix (IY-5) against official Analog Devices documentation to confirm temperature range and package details. Ensure compatibility with the intended isolation voltage requirements. Check for RoHS compliance status in the latest datasheet. Confirm availability through authorized distributors as stock levels vary. Validate that the 32-BBGA footprint matches your PCB design constraints.
Selection Notes
Select this component when a compact, fully integrated isolated RS485/RS422 solution is required. It eliminates the need for discrete isolators and transformers. Consider the 20 Mbps speed and 30kV/µs CMTI for noisy environments. The single-supply operation simplifies power design. Verify that the BBGA package size fits the application's spatial limitations.
Part Context
The LTM2881 series represents Analog Devices' μModule technology, combining complex circuitry into small form factors. This family targets applications needing reliable, high-isolation serial communication. The IY-5 variant specifically denotes the industrial temperature grade and 5V supply configuration within the broader LTM2881 product line.
Replacement Considerations
Official evaluation boards such as DC1746A-B are available for testing. No direct pin-to-pin replacement part numbers are explicitly confirmed in the provided source material. Consult Analog Devices for potential alternative modules if form factor changes are acceptable.
FAQ
What is the maximum data rate supported by the LTM2881IY-5?
The device supports data rates up to 20 Mbps.
Does the LTM2881IY-5 require external components for operation?
No, it is a complete μModule transceiver that requires no external components.
What is the isolation voltage rating of this module?
The module provides an isolation voltage of 2500Vrms.
