A problem in Hi and Low REF pins, in 7106 and 7107

Discussion in 'Homework Help' started by eric_s88, May 16, 2011.

  1. eric_s88

    Thread Starter Member

    Apr 20, 2011
    Hi everyone! I'm plannig to build a digital scale using ICL7107 as AtoD, but the schematic that I have is using ICL7106 as AtoD and im going to replace it with 7107! in this schematic we have a volt division among these resistors: R17 R18 R19 R20 R16 that are connected directly to 10V regulator, and this division make the REF on pin 36 and 35.

    my question is what change is necessary to be applied in schematic or resistors values? will circuit work if I dont make a change?

    I haved attached the main circuit of the digital scale and ICL7106/7 datasheet.

    thank you

    Last edited: May 16, 2011