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Comparator help (LM2903N)

Question asked by allan on May 18, 2017
Latest reply on May 19, 2017 by 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 ?