Question
I am using multiple devices of MPN:AD5522JSVDZ as slaves in SPI I/F.therefore i have shared the MISO / MOSI signals to all slaves parralelly.does this device support that (open drain SDO) or only point to point protocol?
Answer
The AD5522 SDO pin is described as a weak output driver. Test is done at 500uAcompliance current load. Also SDO timing, SPI Interface Timing Table 2, iseffected by DVCC level and may require a reduction in Sclk speed. The weakdrive of the SDO would suggest point to point.