Stuart Pittaway
Stuart Pittaway
The TL432 is similar, but I found that wasn't as accurate as the original part/voltage reference.
Thanks @atanisoft. @moscito1010 just to note that the part suggested "C460576" should work, its 1.24V rather than 1.25V output. [JLCPCB Part link](https://jlcpcb.com/partdetail/DiodesIncorporated-AZ431LANTRG1/C460576) So you the value you use to calibrate...
Hi. Are you planning to swap to a 3 pin connector for the comms ?
How about using something like VOH1016AD ? https://www.mouser.co.uk/ProductDetail/Vishay-Semiconductors/VOH1016AD?qs=PqoDHHvF648sjq9xbZMnUg%3D%3D That is almost a drop in replacement for the existing chip. Wouldn't need to change connector then either. Although - this chip...
What's the problem you are trying to solve with the higher comms speed?
Ok. Are you really going to be working with +500VDC on this?
That's a relief!! Why do you need 3 wires? A module is just driving the anode and cathode of the chip in the next module along the chain. VOH1016AD ...
or a chip like the Toshiba TLP2301 - this should be good for up to 1Mbps (although the ATTINY won't go that fast!)
The isolator is on the RX so can be on the modules, so only two wires needed, just like now.
Yes, I'm going to release a new module version using a different attiny chip, because the 841 is difficult to order.