Other Parts Discussed in Thread: OPA4350
Hi,
Let me ask you a question about low pass RC filter.
I am using REF5030 as a 3.0V reference for ADC.
The configuration of the circuit is following.
REF5030 - RC filter(1K/1uF) - OPA4350(Buffer) - ADC(TMS320F28386)
I measured the voltage of the front point and back point of the RC filter.
The result is 3.0V(front) and 3.3V(back).
(Please check the attached document.)
I do not understand the difference between front and back.
Will you teach me the reason why?
REF5030 Question May10 2022.pdf
Thank you for your support.
Best Regards,
Takumi