PIC Controlled Current Source


Closed Thread
Results 1 to 10 of 10

Hybrid View

  1. #1
    Join Date
    Nov 2003
    Location
    Greece
    Posts
    4,132


    Did you find this post helpful? Yes | No

    Default

    Quote Originally Posted by Acetronics View Post
    ...
    The current sources and sinks were designed around a ... LMC660 !!!
    Hmm, what a surprise!

    The only problem that I had with the LMC66x was with +5V supply and near 5V input. They tend to lock the output like a switch even when they were connected as buffer. With a supply of 6 or more volts from seperate source, everything was just fine.

    Ioannis

  2. #2
    Join Date
    May 2004
    Location
    NW France
    Posts
    3,653


    Did you find this post helpful? Yes | No

    Post

    Hi, Ioannis

    If you have a look to the Input common mode voltage range ...

    no surprise ...

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************

  3. #3
    Join Date
    Apr 2007
    Posts
    53


    Did you find this post helpful? Yes | No

    Default Thank You

    Hello Ioannis and Alain,

    Thanks for your replies - exactly what I was after. I was having one of those days where I couldn't think straight and I was overlooking the obvious solution.

    BTW - I have had success using the TS951/952/954 series of RRIO op-amps. The data sheet states "latch-up immunity", so they may be a suitable device in your application Ioannis. I haven't experienced any problems with them. Pricing and specs are are similar to LMC660.

    Regards,

    Andy

  4. #4
    Join Date
    Nov 2003
    Location
    Greece
    Posts
    4,132


    Did you find this post helpful? Yes | No

    Default

    OK, thanks. I'll check them out. Glad was of any help.

    Ioannis

Similar Threads

  1. Reducing PIC current to as low as possible...
    By FromTheCockpit in forum mel PIC BASIC Pro
    Replies: 6
    Last Post: - 18th November 2009, 04:28
  2. PIC conducting signal current when off
    By Viberer in forum Off Topic
    Replies: 0
    Last Post: - 28th May 2009, 17:27
  3. Mesuring current with pic
    By mitchf14 in forum mel PIC BASIC Pro
    Replies: 13
    Last Post: - 4th December 2008, 08:06
  4. Replies: 22
    Last Post: - 9th April 2007, 15:25
  5. Replies: 0
    Last Post: - 15th December 2006, 19:16

Members who have read this thread : 0

You do not have permission to view the list of names.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts