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Digital Signal to +12V or vise versa

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rynxysh

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I doing a project now,how i sending a digital signal(+5v) and convert to +12V without using voltage divider and transistor?any IC?
And 1 more question,can i convert +12v,+5v,+3.3v those voltage convert back to digital signal?

your reply is aapreciated XD
 

It would be much easier if you use transistor. What do you intend to use this for?
Although it is a MOSFET driver, you can use the TC427. With a 5v signal input, the output will be VDD - 0.025V. So, if you supply 12V to VDD, with 5v input, you get 11.975V.

Datasheet: **broken link removed**

Also you can use an operational amplifier set up as a non-inverting amplifier with gain about 2.4.

Hope this helps.
Tahmid.
 
thank you for reply,ur information is good.thanks again.how about 12v,5v,3.3v convert to digital signal?
 

rynxysh said:
thank you for reply,ur information is good.thanks again.how about 12v,5v,3.3v convert to digital signal?
Click to expand...

The easiest approach would be to use a comparator with and open-collector output (large-valued resistor pulled up to +5V). You'd still need a threshold voltage... either use a voltage divider to set it up at ~1/2 Vmax (if 0/12V signal, set threshold to 6V... 3.3V, set threshold to ~1.6V, etc). Or, use a zener diode and a single resistor to set up a reference voltage for your threshold. There are a lot of options, just depends on how crazy or simple you want to get. (p.s. op-amps and comparators are CHEAP)
 

rynxysh said:
thank you for reply,ur information is good.thanks again.how about 12v,5v,3.3v convert to digital signal?
Click to expand...

Using TC427, you can convert any digital signal from minimum 2.4v up to 12v(18v max).

Hope this helps.
Tahmid.
 

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