Re: 8 input digital POT

John Fields <jfields@xxxxxxxxxxxxxxxxxxxxx> wrote in
news:699td1pic2ags9np4l1os89tpv9ngnhuaf@xxxxxxx:

> On 20 Jul 2005 18:34:31 GMT, Colin <nnn@xxxxxxx> wrote:
>
>>I have an application where I need to replace a mechanical
>>potentiometer with a digital one. The problem I have is I want to use
>>8 5v inputs to control the resistance (eg. 8 control pins on a pc
>>parallel port). Is there an IC that will address this, or is there a
>>circuit that can be built? I can find 256 tap digi pot IC's but they
>>all have an increment/ decrement thing going on. Please Help TY
>
> ---
> Since you say you're concerned with the resistance change I assume
> you're going to be using this thing like a rheostat, no?
>
> Do you need it to be able to handle bipolar signals?
>
> What's the application?
>

Yes. A rheostat seems to be the thing I am looking for. But I need one
that is controllable with 8 signals. Low signal is 0v and high is 5v
.

Relevant Pages

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  • Re: About the outage
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  • Re: Scooter problems
    ... Sounds to me like it could be a problem with the rheostat that forms ... If you mean "potentiometer", I dare say that the OP gave the throttle ... when someone says "variable resistor" you know that they mean ... the dot wanderer at tesco dot net ...
    (uk.people.disability)
  • Re: Scooter problems
    ... Sounds to me like it could be a problem with the rheostat that forms ... I may have my terminology mixed up... ... I mean a variable resistor type thingy...Is that a rheostat or a potentiometer? ... when someone says "variable resistor" you know that they mean "potentiometer".. ...
    (uk.people.disability)
  • Re: About the outage
    ... appeared in talk.origins, posted by "Greg G." ... and a potentiometer (the resistive sort, ... A rheostat can be used to directly control higher currents? ... A rheostat is a 2-terminal variable resistor. ...
    (talk.origins)