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ADUM141 Timing with 1.8V/5V supply and reduced temperature range

Question asked by daniw on Apr 6, 2017
Latest reply on Apr 10, 2017 by bkennedy

In my design I use the ADUM141 to isolate a SPI interface with a clock speed of 50MHz to read the result of the ADC AD7091R. The SPI master is implemented in the FPGA part of a Xilinx Zynq 7015.

I use a supply voltage of 1.8V on the primary side and 5V on the secondary side.
The Propagation Delay is not specified in the datasheet for this case.
Is it possible to get the minimum and maximum propagation delay in this case?

Can I add the propagation delay with 1.8V and the propagation deley with 5V to get the delay in my case?

Additionally I do not need the full temperature range as the product will not be used at temperatures below 0°C. Can the minimum and maximum propagation delay be specified closer together with this reduced temperature range?

Kind regards

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