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Part Number: ISO1212EVM
I"m trying to filter some noise from a pulse generating system, up to 270KHz, 5us width. I purchased a ISO1212EVM optical isolator but the levels to trigger this board are too high, it starts outputing voltage at 19V input.
Does anyone have an idea for a chip I could use? Hopefully with an Eval board as my setup is temporary.
Hi Jim, The device ISO1212 is meant for applications with 24V or higher voltage digital inputs which are typically used in factory automation and other similar applications. This device will not be suitable to be used with RS-422 signals. Could you please elaborate on the voltage levels that the pulse generating system is going to output? Based on your inputs, I can recommend a suitable device and the evaluation board to use. Regards, Koteshwar Rao
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In reply to Koteshwar Rao:
Hi Jim, Please do share the requested information to enable us make device and EVM suggestions for you. Thank you. Regards, Koteshwar Rao
My signal levels claim to be "ANSI standard TIA/EIA-422-B, differential line drivers." Most of them are positive going though one of the differential signals is negative.
I"m trying to use this chip to isolate ground loop noise from another system where I'm receiving the trigger. I've tested a Vishay chip that seems to trigger ok for my application. I couldn't find a TI equivalent and was a bit rushed for a solution.
In reply to Jim Lewandowski42:
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