the circuit below is a simple differential amplifier used for current sensing. I know how it works however i had 2 questions.
-what is the purpose of capacitor C1
-why is there a resistor and capacitor on the output
My guess is the resistor is needed to drive the MCU's ADC pin with a high enough source impedance to have the right ADC conversion rate;
Can someone help me clarify this ?
-what is the purpose of capacitor C1
-why is there a resistor and capacitor on the output
My guess is the resistor is needed to drive the MCU's ADC pin with a high enough source impedance to have the right ADC conversion rate;
Can someone help me clarify this ?