ADC

Discussion in 'Homework Help' started by gusmas, Oct 15, 2008.

  1. gusmas

    Thread Starter Active Member

    Sep 27, 2008
    239
    0
    hey guys me again :eek:.... ive got this assignment to design an ADC and thats fine .. but the one problem im having is how to calculate the Resistors of the Flash ADC. the ADC receives and 4-bit binary number... so any ideas how i can calculate the resistor values??!
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
  4. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    145
    The resistors should all be equal. What is Vin and Vref at the inputs?

    Dave
     
  5. Ron H

    AAC Fanatic!

    Apr 14, 2005
    7,050
    657
    ADCs do not receive binary data. They receive analog inputs, and output binary data.
    Did you mean DAC?
     
  6. gusmas

    Thread Starter Active Member

    Sep 27, 2008
    239
    0
    thats the thing i need to get Vref for and LM741 op amp and the data sheet i got from the net does not say the Vref.... so where can i get the Vref for that op amp model??
     
  7. Ron H

    AAC Fanatic!

    Apr 14, 2005
    7,050
    657
    You didn't answer my question. You need to post a schematic of what you are trying to design.
     
Loading...