How to implement a voltage shift?

[Tom2]

Hello,
is anyone who know how to implement a voltage shift?
I have a sensor which produce some values of voltages.I want to use this values to microcontroller and i must to convert them before to use by the microcontroller.For example when produce value 2 V i want to convert it,to value 3V or 1V.How to do this???

 

[MikeR]

Re: voltage shift

I think you can build simple non inverting summer amplifier with your shift reference

 

[waxtomato]

Re: voltage shift

why don't you make a source follower or Emitter follower to get shift.
if you want change the amplitude of signal, that is another story

 

[artem]

Re: voltage shift

why don't you make a source follower or Emitter follower to get shift.
if you want change the amplitude of signal, that is another story

because semiconductor junction voltage is temperature dependent and sensor interfacing is wanted. You will get error in mV per C degree.