Results 1 to 3 of 3

Thread: adder circuit

  1. #1
    Junior Member User
    Join Date
    Dec 2006

    Default adder circuit


    we all know the simple opamp adder circuit.. this works fine for dc sources. this even works for ac of freq range 0 to some 1MHz..

    but i need a high speed adder to instantly add two signals of freq range 250 to 300 MHz .. can you suggest me one such circuit ?

  2. #2
    Senior Member Android
    Join Date
    Apr 2008

    Default hi

    below are some suggestion.... i have never tried any........ they just came in my mind....... hope they work.....
    why don't you check out high frequency opamps like HA2839/40
    they say to work upto 600MHz............
    other solution can be to first convert the signal to low frequency, add, then again upconvert ..........
    or you can make a adder circuit using high frequency transistors....... just replace all the transistors in a opamp circuit by them.....

    you can also try them for your other querry.....

  3. #3


    doing it with transistors instead of opamps will help

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts