Software SPI Isolation methods 2MHz
The ADuM1201A states on the front page of its data sheet this: -

SPI interface/data converter isolation

However, it is limited to 2 Mbps and has only two channels. If you need the equivalent of MISO (SPI data back) then a 4 channel device like the ADuM142D is preferred because it has two outgoing and two incoming channels AND has a maximum guaranteed data speed of 150 Mbps. The application describes it as: -

Serial peripheral interface (SPI)/data converter isolation

And it is good for 3 kV isolation (a little bit more than the 1201.)
Regarding your schematic, it's down to you to do this but there are a couple of things to bear in mind: -

You need to provide an isolated supply for the isolated side of the chip. This means an extra component that provides this supply voltage.
This webpage lists all ADI's data isolation products and you might find a device that is good for SPI AND has an internal isolating supply such as the ADuM5401/2. I can't say if this is good for 2 Mbps - you'll have to check the data sheet: -


However, the page above does say: -

Quad dc-to-25 Mbps (NRZ) signal isolation channels