I have a MAP(manifold absolute pressure) sensor, which has 3 pins:
5V, GND, OUTPUT. It acts like potentiometer and output's voltage varies between 0(0 bar pressure) and 5 volts(2.5 bar pressure). I would like to make the simplest possible circuit to limit the output voltage from the sensor to 4.5 volts, instead of 5v:
- INPUT - OUTPUT
- 0.5v - 0.5v
- 3v - 3v
- 4.5v - 4.5v
- 5v - 4.5v
What circuit should I be looking into?