The LTM® 2887 is a complete galvanic digital µModule® (micromodule) isolator. No external components are required. A single 3.3-V or 5-V 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 1.62 V to 5.5 V, independent of the main supply.
Available options are compliant with SPI and I2C (master mode only) specifications.
The isolated side includes two 5-V nominal power supplies, including programmable current limit, each capable of providing more than 100 mA of load current. The supplies may be adjusted from their nominal value using a single external resistor.
Coupled inductors and an isolation power transformer provide 2,500 VRMS 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 30 kV/μs.
Advertisement
Learn more about Linear Technology
