joao.caracas
Newbie level 6
Hi,
Can any one help me to identify and solve noise sources from this circuit?
It is a isolated DC voltage sensor, it uses a voltage divider to reduce 375V to 2V aplied to the input of a ACPL-C87A, the 2V output of the ACPL-C87A goes to a LM358 filter with gain to convert it to 3.3V applied to an ADC. There's approximately 100mVpp on the LM358 output.
How can I improve this?
- - - Updated - - -
Can any one help me to identify and solve noise sources from this circuit?
It is a isolated DC voltage sensor, it uses a voltage divider to reduce 375V to 2V aplied to the input of a ACPL-C87A, the 2V output of the ACPL-C87A goes to a LM358 filter with gain to convert it to 3.3V applied to an ADC. There's approximately 100mVpp on the LM358 output.
How can I improve this?
- - - Updated - - -