Q&A AD5175 AD5231 life cycle

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AD5175 AD5231 life cycle

Erchanik

on Sep 23, 2021

Hello

How many times wiper position of AD5175 and AD5231 can be changed?

Does "50-times programmable (50-TP) wiper memory" of AD5175 means that if MCU changes 50 times resistance this IC breaks down?

Thank you

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vsethia
Sep 24, 2021 +1 verified
50-TP is where you can write 50 times into EEPROM to change the wiper position on powerup. After that, the EEPROM will not accept any more writes. The device will not break down on writing more than 50…

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+1 vsethia

on Sep 24, 2021 4:05 AM
50-TP is where you can write 50 times into EEPROM to change the wiper position on powerup. After that, the EEPROM will not accept any more writes. The device will not break down on writing more than 50 times into EEPROM.

However, you can write directly into RDAC register to change the wiper position with no upper limits.

For AD5231, write cycle is at least 100000.
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0 Erchanik
on Sep 24, 2021 10:00 AM in reply to vsethia
100000 for EEMEM or RDAC?
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0 vsethia

on Sep 24, 2021 2:47 PM in reply to Erchanik
For EEMEM.
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0 Erchanik
on Sep 24, 2021 3:36 PM in reply to vsethia
So RDAC can be used unlimited times. Thank you very much!
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0 vsethia

on Sep 27, 2021 10:26 AM in reply to Erchanik
That is correct.
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0 vsethia

on Sep 27, 2021 10:26 AM in reply to Erchanik
That is correct.
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