I am puzzled.
Fig 1 of the datasheet suggest there are 2 bi-directional channels and two one-way channels.
Table 23 shows 4 on-way channels; 3 from left to right, 1 from right to left.
Which ones are bidirectional, which ones are uni directional?
As per CN-0382 Circuit note AD7124 SPI communication input pins CS, SCLK & DIN are connected to Adum1441 logic input points VIA,VIB & VIC and SPI communication output pins DOUT connected to Adum1441 logic output point VOD.
But CN-0376 Circuit…
The maximum speed of the ADuM1441 is 2Mbps according to the datasheet.
You can also go to the "Reference Materials" section of the product page and click "Technical Articles." There you'll find the article linked above by Jason, as well as this one:
Can an ADuM1441 really run 247 k hrs on aLithium Coin Cell?
Asked by Garry C.
Have you attached here the schematic? Yes, you can use ADUM1441 as this is also the recommended digital isolator for AD7124.
Thanks for your reply.
Yes, Iam using the power from DVCC pin to power up the isolators and the HART modem AD5700.
As per Current calculation the total current taken by the isolators ADuM1441 will not exceed 3.15mA.
I have attached the schematics…
可以采用ADI的数字隔离器产品进行MCU与数字电位器之间的隔离，如ADuM1441 ADum141E 产品
I will have a check whether we have the plan to get the certifications, and for your second question you will find the answer in Table 21 below.
ADuM1440/ADuM1441/ADuM1442 have the default high output state if input is unpowered and ADuM1445/ADuM1446…