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LTM2882-Slide11

This provides a closer look at the common mode transient immunity, provided by LTM2882. The plot in red, shows several common mode transients introduced to the system before, during and after communication. The slew rate of the transients are roughly 1kV per 28ns or 35kV/µs. The driver (in blue) continues to drive data to the receiver (in green) in a loop-back configuration and consistently outputs the data on R1OUT with no jitter or corruption of data. The propagation delay is from two transmissions across the barrier with the loop-back through the RS232 driver and receiver back to the logic side R1OUT output. While other isolation solutions may only hold state during a transient event, the Isolated µModule® Technology provides continuous communication during these harsh system events, with guaranteed high common mode transient immunity of 30kV/µs.

PTM Published on: 2011-05-16