Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Signal level shifting from (-5 to 5V) to (0-5V)

Status
Not open for further replies.
S

sudil99

Junior Member level 3
Junior Member level 3
Joined
Mar 20, 2012
Messages
29
Helped
3
Reputation
6
Reaction score
3
Trophy points
1,283
Visit site
Activity points
1,503
My circuit is supplied with -5V and 5V power supply. Since I am using rail to rail opamp, the output signal is ranging from around -5V to 5V. The signal needs to go to ADC but the ADC can only read from 0 to 5V. How can I shift the signal to 0 - 5V such that the new base line becomes 2.5V?
 

simply remove the negative supply and replace it by ground.
if that doesnt work then add a NOT gate to remove the unwanted portion.but the drawback is that signal will be complemented.
 

In addition to the above suggestions, here is a method using two resistors.

Values are not critical. The output should be fed to a high impedance in the following stage.

65_1340139786.gif


It will create a small current continually flowing back into the source. The source must be able to sink this current.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top