×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

wondering if a particular IC exists...

wondering if a particular IC exists...

wondering if a particular IC exists...

(OP)
So, i design this project hoping to use an hc125 3-state buffer and then i find that the voltage compliance on that thing is like .1mA at 5V.  i've been looking high and low for some sort analogous chip (quad 3-state buffer) which can fill capacitors.  basically, four outputs, when enabled putting out +5V with at least 10mA, and when disabledare are in a high-impedance state.

anyone know if such a beast exists?

RE: wondering if a particular IC exists...

How about one of the 8 bit wide bus buffers, maybe an HC245 ?

That is specified as 330mV drop at 7.8mA, but you could parallel up several outputs to improve on that.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources