1. Sep 26, 2012 #1

   uhdam

   

   Hello Everyone,
   
   In Digital to Analog conversion circuit we use the weighted resistors(i.e R,2R,3R,4R) and one feedback resistor(i.e Rf). Here my question is that how to calculate the those resistor values??? If you know any formulas please provide me.....

    

   uhdam, Sep 26, 2012
2. 
   Phys.org - latest science and technology news stories on Phys.org

   • • Next-generation transport
   • • Microsoft researchers test AI-controlled soaring machine
   • • Using a camera to spot and track drones
3. Sep 26, 2012 #2

   berkeman

   

   Staff: Mentor

   You don't want to use too large of a base resistance value, or you will limit your maximum output frequency too much (because of the stray capacitance in your DAC output layout).
   
   You don't want to use too small of a base resistance, because that will take too much drive power.
   
   The base resistance value that you choose should be just a bit smaller than what it takes to start limiting your output bandwidth lower than you want.

    

   berkeman, Sep 26, 2012

• Log in with Facebook
• Log in with Twitter

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in