LTM2883 - SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power

The LTM?2883 is a complete galvanic 6-channel digital μModule? (micromodule) isolator. No external components are required. A single 3.3V or 5V supply powers both sides of the interface through an integrated, isolated DC/ DC converter. A logic supply pin allows easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.

Available options are compliant with SPI and I2C (master mode only) specifications.

The isolated side includes ±12.5V and 5V nominal power supplies, each capable of providing more than 20mA of load current. Each supply may be adjusted from its nominal value using a single external resistor.

Coupled inductors and an isolation power transformer provide 2500VRMS of isolation between the input and output logic interface. This device is ideal for systems where the ground loop is broken, allowing for a large common mode voltage range. Communication is uninterrupted for common mode transients greater than 30kV/μs.

Features
  • 2500VRMS for One Minute per UL1577
  • UL Recognized ? File #E151738
  • Isolated Adjustable DC Power: 3V to 5V at Up to 30mA ±12.5V at Up to 20mA
  • No External Components Required
  • SPI (LTM2883-S) or I2C (LTM2883-I) Options
  • High Common Mode Transient Immunity: 30kV/μs
  • High Speed Operation: 10MHz Digital Isolation 4MHz/8MHz SPI Isolation 400kHz I2C Isolation
  • 3.3V (LTM2883-3) or 5V (LTM2883-5) Operation
  • 1.62V to 5.5V Logic Supply
  • ±10kV ESD HBM Across the Isolation Barrier
  • Maximum Continuous Working Voltage: 560VPEAK
  • Low Current Shutdown Mode (<10μA)
  • Low Profile (15mm × 11.25mm × 3.42mm)?BGA Package
Typical Application
LTM2883 Typical Application
LTM2883 Typical Application
Applications
  • Isolated SPI or I2C Interfaces
  • Industrial Systems
  • Test and Measurement Equipment
  • Breaking Ground Loops
Packaging
LTM2883 Package Drawing
LTM2883 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTM2883CY-3I#PBF15mm x 11.25mm x 3.42mm BGAC$17.07$11.95
LTM2883CY-3S#PBF15mm x 11.25mm x 3.42mm BGAC$17.07$11.95
LTM2883CY-5I#PBF15mm x 11.25mm x 3.42mm BGAC$17.07$11.95
LTM2883CY-5S#PBF15mm x 11.25mm x 3.42mm BGAC$17.07$11.95
LTM2883IY-3I#PBF15mm x 11.25mm x 3.42mm BGAI$18.78$13.15
LTM2883IY-3S#PBF15mm x 11.25mm x 3.42mm BGAI$18.78$13.15
LTM2883IY-5I#PBF15mm x 11.25mm x 3.42mm BGAI$18.78$13.15
LTM2883IY-5S#PBF15mm x 11.25mm x 3.42mm BGAI$18.78$13.15
Demo Boards
Part NumberDescriptionPrice
DC1748A-ALTM2883-3S SPI uModule Isolator Demo Board (3.3V Supply)$50.00
DC1748A-BLTM2883-5S SPI uModule Isolator Demo Board (5.0V Supply)$50.00
DC1748A-CLTM2883-3I I2C uModule Isolator Demo Board (3.3V Supply)$50.00
DC1748A-DLTM2883-5I I2C uModule Isolator Demo Board (5.0V Supply)$50.00
Datasheet
Reliability Data
Product Selector Card
Quality
Press Release
CAD Symbol
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LTM2883 Footprints and Symbols
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