Analog Devices LTM2892

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.

Features

• 6-Channel Logic Isolator: 3500VRMS for 1 Minute
• 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 Isolation4MHz/8MHz SPI Isolation400kHz I2C Isolation
• Operation Up to 125°C (H-Grade)
• 1.62V to 5.5V Logic Supplies for Flexible DigitalInterfacing
• ±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 applications

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

More information

• Datasheet
• IC product information