| General > General Technical Chat |
| DMM problem in DC millivolts range |
| << < (5/6) > >> |
| tooki:
Yeah but it could be a minor error, like a configuration bit for input impedance. (In theory; I don't know what the chip can and cannot do.) |
| amir.razzaqi:
--- Quote from: tooki on July 19, 2023, 11:10:33 pm ---Yeah but it could be a minor error, like a configuration bit for input impedance. (In theory; I don't know what the chip can and cannot do.) --- End quote --- But as I mentioned I active write protected mode of EEPROM before reading it. |
| tooki:
Yes, but if wrong voltages were applied, as you suggested may have happened, it could have caused unpredictable behavior or damage. |
| amir.razzaqi:
--- Quote from: tooki on July 20, 2023, 08:31:21 am ---Yes, but if wrong voltages were applied, as you suggested may have happened, it could have caused unpredictable behavior or damage. --- End quote --- That EEPROM is "atmel 24c02" and can handle up to 5.5 volt |
| Gyro:
Yes, the 24C02 has a supply range of 1.7 - 5.5V, it will be on the same supply rail as the DTM0660 DMM chip though. This has a supply voltage range of 2.4 - 3.6V (Abs max 4V). This will have created some (over)stress. |
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