[sdiy] Logic to +/-5V conversion

[mark verbos]

You could just run a CD4050 buffer from +/-5. You'll have to use some resistors to push your signals down a little bit to be centered around the new threshold of 0V, but it would work AND you'll get 6 buffers in one package.

Mark





On Nov 21, 2015, at 3:29 PM, Tim Ressel wrote:

> Thanks for all the great ideas. I have +/- 5V available, and there is no precision requirements. 
> 
> I am going to look into the 4053 idea. 
> 
> 
> --tr
> 
> On 11/21/2015 7:28 AM, Mattias Rickardsson wrote:
>> It depends a bit, we're all waiting to hear what supply voltages are available. :-)
>> 
>> /mr
>> Den 21 nov. 2015 1:02 em skrev "Dave Manley" <dlmanley at sonic.net>:
>> 
>> 
>> On November 21, 2015 3:36:13 AM PST, "René Schmitz" <synth at schmitzbits.de> wrote:
>> >Am 21.11.2015 um 01:51 schrieb Tim Ressel:
>> >> Hi y'all,
>> >>
>> >> I'd like to take several 0-5V digital lines and make them swing
>> >+/-5V. I
>> >> can do it with op amps, but is there a clevererer way?
>> >>
>> >> Thanks!
>> >>
>> >A 4053 can be powered from +-5V (Vcc=5V, Vee=-5V, GND=0V) and does
>> >still
>> >accept 0-5V input. Then tie +5 and -5 to the switch inputs.
>> >Gives you three channels in one package. You can even do inversion by
>> >swapping the connections on the switch.
>> >
>> >Best,
>> >  René
>> 
>> Most clevererer answer so far!
>> 
>> -Dave
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> 
> -- 
> --Tim Ressel
> Circuit Abbey
> timr at circuitabbey.com
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