A/D converter

[mjz]

hi,i want the simplest circuit for analog to digital converter............

 

[Someone Electro]

Those 8 pin DAC chips do a good job.What interface do you neead? I2C,SPI,Parallel..

 

[Roff]

Those 8 pin DAC chips do a good job.What interface do you neead? I2C,SPI,Parallel..

That's ADC, not DAC.

 

[danielsmusic]

this is 2-bit, i think you could add more though.

 

[Roff]

this is 2-bit, i think you could add more though.

You can, but for an n-bit converter, it takes 2^n-1 comparators, e.g., for 8 bits, you need 255 comparators.
The advantage is, it can be very fast if you use fast comparators.

 

[Someone Electro]

I typed it wrong.Sory
I know its an ADC (Analog Digital conveter) and not DAC (Digital Analog Converter)

You beter find an IC that dose this.Making one togeter yourself will be a huge circuit.

How many bits do you need?

 

[Russlk]

One bit is the simplist.

 

[Someone Electro]

Yea one comparitor chip will do as 1 bit ADC