engineer123
Junior Member level 3
Hey Everybody,
I had PIC works as ADC and it works very well with positive voltages the problem is that I have to convert from A2D through the PIC negative voltages so what I did simple design of inverting amplifier which converts the negative voltage to positive voltage and the output of the amplifier connected to the ADC of the PIC the amplifier works fine as expected , but the ADC result is not stable it keep changing.
I had PIC works as ADC and it works very well with positive voltages the problem is that I have to convert from A2D through the PIC negative voltages so what I did simple design of inverting amplifier which converts the negative voltage to positive voltage and the output of the amplifier connected to the ADC of the PIC the amplifier works fine as expected , but the ADC result is not stable it keep changing.