I am using some Darlington transistor arrays that are ULN2003A or TD62003AP parts.  If there is a short circuit, the chip will fry.  I think there are more expensive parts that I can use, in place of the 2003 series, that will not allow themselves to fry.

Can anybody point me in the right direction, or make a suggestion?

Or, better yet, know of an IC part and where the data sheet is?

Thanks all!

C.
  ----- Original Message ----- 
  From: Dan Mulally 
  To: PICLIST@MITVMA.MIT.EDU 
  Sent: Friday, May 19, 2000 7:18 PM
  Subject: Re: Average reading of a fluctuating A/D signal?


  Quentin,

  If you add five 8-bit samples and use two 8 bit registers for the result
  (16bits) you can then do a right shift five times on the 16 bit result to
  obtain an average. You need to take into account the carry from the lo byte
  to the high byte.

  Dan

  ----- Original Message -----
  From: "Quentin" <qsc@ICON.CO.ZA>
  To: <PICLIST@MITVMA.MIT.EDU>
  Sent: Friday, May 19, 2000 6:01 AM
  Subject: Average reading of a fluctuating A/D signal?


  > My A/D input signal is such that I will always have a +/- 10 fluctuation
  > in my register value. Can somebody tell me how to get an average reading
  > over say 5 A/D samples?
  >
  > Thanks
  > Quentin