parallel input Digital potentiometer

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eng_boody

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I need convert a parallel digital 8 -bit input to control the on duration of n5e55 monostable,

i thought of digital potentiometer but i found all serial communication,
is there any parallel ones ?

if not, i think of dac but how to convert analoge voltage to duration of ne555, is there any solution

thanks
 

Hi,
A voltage to current converter circuit can be used. For your purpose a R2R DAC for converting the 8 BIT input into a control voltage, should be the cheapest/easiest implementation.
 

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