Interface Isolated Transceivers
µModule Solutions µModule Isolated Transceivers
 Interface Extended Temperature (H & MP) Interface

LTM2881 - Complete Isolated RS485/RS422 μModule Transceiver + Power

LTM2882 - Dual Isolated RS232 uModule Transceiver + Power

LTM2892 - SPI/Digital or I2C μModule Isolator

Features

  • 6-Channel Logic Isolator: 3500VRMS for 1 Minute
  • UL-CSA Recognized File #E151738
  • 3V to 5.5V Supply Operation
  • No External Components Required
  • SPI/Digital (LTM2892-S) or I2C (LTM2892-I) Options
  • High Common Mode Transient Immunity: 50kV/μs
  • High Speed Operation:
    10MHz Digital Isolation
    4MHz/8MHz SPI Isolation
    400kHz I2C Isolation
  • Operation Up to 125°C (H-Grade)
  • 1.62V to 5.5V Logic Supplies for Flexible Digital Interfacing
  • ±15kV ESD HBM Across the Isolation Barrier
  • Maximum Continuous Working Voltage: 850VPEAK
  • Low Current Shutdown Mode (<10μA)
  • Small (9mm × 6.25mm × 2.91mm) BGA Package

Typical Application

LTM2892 Typical Application
LTM2892 Typical Application

Description

The LTM®2892 is a complete galvanic digital μModule® (micromodule) isolator. No external components are required. Individual 3V to 5.5V supplies power each side of the digital isolator. Separate logic supply pins allow easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.

Module options are available with compatibility to SPI (LTM2892-S) and I2C (LTM2892-I), master mode only, specifications.

Coupled inductors provide 3500VRMS of isolation between the input and output logic interface. This device is ideal for systems where the ground loop is broken, allowing uninterrupted communication through large common mode transients faster than 50kV/μs.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing		 RoHS
LTM2892CY-I#PBF 9mm x 6.25mm x 2.91mm BGA BGA C 05-08-1898 Yes
LTM2892CY-S#PBF 9mm x 6.25mm x 2.91mm BGA BGA C 05-08-1898 Yes
LTM2892HY-I#PBF 9mm x 6.25mm x 2.91mm BGA BGA H 05-08-1898 Yes
LTM2892HY-S#PBF 9mm x 6.25mm x 2.91mm BGA BGA H 05-08-1898 Yes
LTM2892IY-I#PBF 9mm x 6.25mm x 2.91mm BGA BGA I 05-08-1898 Yes
LTM2892IY-S#PBF 9mm x 6.25mm x 2.91mm BGA BGA I 05-08-1898 Yes


LTM2892 Package Drawing
LTM2892 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)		 Price
(1k)*		 RoHS
LTM2892CY-I#PBF 9mm x 6.25mm x 2.91mm BGA C $8.50 $5.95 Yes
LTM2892CY-S#PBF 9mm x 6.25mm x 2.91mm BGA C $8.50 $5.95 Yes
LTM2892HY-I#PBF 9mm x 6.25mm x 2.91mm BGA H $11.22 $7.85 Yes
LTM2892HY-S#PBF 9mm x 6.25mm x 2.91mm BGA H $11.22 $7.85 Yes
LTM2892IY-I#PBF 9mm x 6.25mm x 2.91mm BGA I $9.35 $6.55 Yes
LTM2892IY-S#PBF 9mm x 6.25mm x 2.91mm BGA I $9.35 $6.55 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1957A LTM2892-S SPI/Digital uModule Isolator Demo Board $50.00
DC1986A LTM2892-I I2C uModule Isolator Demo Board $50.00
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Click here to view our complete list of demo boards

Technical Support

Applications

  • Isolated SPI or I2C Interfaces
  • Industrial Systems
  • Test and Measurement Equipment
  • Breaking Ground Loops

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