One additional note: For new designs, we recommend ISO7310C instead of ISO721. ISO7310C is pin compatible with ISO721 and with much improved performance.
If you are attempting to use 2-wire transmitters, you will need to isolate the input to each transmitter. The I RET pin of a 2-wire transmitter needs to float and cannot be tied to other grounds or the I RET of other transmitters. See the attached articles…
Hi Zak,
well i have seen on the datasheet that i have to put a 100nf capacitor between 1 and 3 pin and other 100nF capacitor between 7 and 8 pin of the ISO7310c for improving the performance.
So i do that with the next schematic,
And the amplitude…
Hi Mars,
I am able to build the code now. Thx for your help.
Can you suggest a non-isolated power supply to power the MSP430I2040 (I do not want to use the CUI power supply - VSK-S1-3R3U) ?
My requirement is just to provide power to the MSP430I2040…
Hello Mame,
I am not sure if I understand your requirement correctly. ISO7321-Q1 has OUTA one Side1 and OUTB on Side2, if you ask me if these two outputs are isolated I would say yes they are isolated as they are on opposite sides of the die. But do…
Hi Kamlesh, We do not have any Opto Isolators in our portfolio. We have Digital Isolators based on capacitive isolation. If your isolation requirement is upto 3kVrms then you can look at ISO7310C and if you need isolation upto 5.7kVrms then you can have…
Gaston,
This is a recently released device, and is still in the process of being stocked to distributors. I am told that it should be available from Digi Key in approximately 2 to 4 weeks.
In the meantime, you should be able to order samples from…
Quickly find solutions to common questions about digital isolator devices by clicking this link. This FAQ answers the most common questions asked about these devices …… ……… …
FAQ: Isolation >> Digital Isolators
Digital Isolators
Isolated Interfaces…
Other Parts Discussed in Thread: ISO6440 , ISO6421 , ISO6442 , ISO6420 , ISO6041 Select this link to see answers to common questions, detailed use case implementations, and part recommendations for isolation devices. .
Top Isolation FAQs - All-Time…
