The LTM2892 breaks ground loops by communicating across a galvanic isolation barrier that blocks dc current for potential differences of up to 3,500VRMS providing safe, uninterrupted operation.
It is I²C compatible at up to 400kHz with bidirectional serial data plus clock and three additional isolated cmos logic signals that operate at up to 10MHz. In addition, the module offers six cmos digital isolator channels that can be used for general I/O or configured for SPI compliant operation.
The six channels include three forward and three reverse directions paths that can all operate at up to 10MHz. When configured for SPI communications, the maximum clock rate is 8MHz for unidirectional communication or 4MHz for round trip bidirectional operation.
All versions include a logic supply pin that provides direct interfacing with low voltage microcontrollers down to 1.62V (SPI) or 3V (I²C), and an ON pin that enables the LTM2892 to be shut down using less than 10µA.
Additional features include uninterrupted communications for common mode transients greater than 50kV/µs and rugged ±15kV ESD HBM across the isolation barrier.
