2 Replies Latest reply on May 19, 2017 4:05 AM by allan

    Comparator help (LM2903N)

    allan

      Hello all. Thanks for taking up your time to read my post.

       

      I am using a LM2903N as the datasheet of LM2903N - Texas Instruments - IC Chips - Kynix Semiconductor  to learn about comparators. I am powering the unit with a 9v battery and connecting to the 5v and the 2.5v. However, when I check the output the resulting voltage is 0v. Why is this happening ? My wiring diagram looks similar to this picture I created. Can anyone help me come up with ideas to try and get this working? Thanks for reading.

       

      enter image description here

                                                                                  This is the circuit for LM2903N  I drew.

       

      I am very puzzled about this question. Can anyone help me ?