I have a converter that is designed to output a -100V but now I find it challenging to read that on ADC. My first approach was to use an inverting amplifier with a gain of 1, the problem is that i'm not sure if the op-amp will be able to handle 100V because most of the amplifiers are rated at low voltages. Can anyone help me on this. Thanks
So you're saying that "let's say I use a voltage divider as a sensor to output -5V from input of -100V then I use an inverting amplifier to get a positive 5V" ?
The PNP transistor inputs of an LM358 dual opamp work perfectly when they are at the voltage of its negative supply pin so it can be a single positive supply inverter when it has a negative voltage to its input resistor. Its output goes as high as +5V only when its supply is about +6.5V.
Is it still applicable to get +5V from -5V using the ICL7660? I'm asking this because in the datasheet they only mention converting positive voltages to negative voltages. I'm interested in converting from negative to positive voltages.