Timeline for Protecting microcontroller from inputs rising faster than Vcc
Current License: CC BY-SA 3.0
6 events
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May 12, 2016 at 20:37 | comment | added | Curd | @Paul Foster: You didn't specify the range of the analog voltage at the input of the ADC. If its upper limit is below Vref = 3V * 32k / (10K + 32k) = 2.28V then there is no problem having a voltage divider. | |
May 12, 2016 at 14:29 | comment | added | Paul Foster | The first solution works well for input pins, but the AREF pin has the shown 32k resistor, which would form a divider with the 10k, so not so good. | |
May 11, 2016 at 20:46 | history | edited | Curd | CC BY-SA 3.0 |
added 338 characters in body
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May 11, 2016 at 20:40 | history | undeleted | Curd | ||
May 11, 2016 at 20:36 | history | deleted | Curd | via Vote | |
May 11, 2016 at 20:35 | history | answered | Curd | CC BY-SA 3.0 |