ADS127L01: SPI digital Isolator

Hello Renan,

The typical clock speed for CLK and SCLK is 16.384MHz, which results in a clock period of 61nS.  In order to minimize the number of isolator channels, a prop delay less than 30nS, and pulse distortion less than 5nS should be used.  There are several TI isolators that can meet this requirement.

ISO7740, ISO7640, and ISO7840 families of isolators should all work for SPI isolation.  If using a slower main clock, then the timing requirements are further relaxed and lower prop delay devices can be used.

Regards,
Keith Nicholas
Precision ADC Applications