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Farshid Jafari Harandi
02/15/06 04:54
  02/15/06 04:56

Read: 582 times

#110026 - Corrections
Responding to: Kai Klaas's previous message
Sorry, I was Wrong when I said :
"Farshid" said:
I remember that C6 has been suggested by you.

I should have had confused when you have said :
"Kai" said:
So, just connect the output of a LM741 (or similar) to superimpose the offset. But, again, don't forget the caps to ground.

I just got that when i was rereading what you said in the original thread. There you meant to connect the Caps at the output of 741 and at Inverting Input of AD844, But I thought you meant to add a 100n Cap at Inverting input of the 741 !
So to conclude, based on your last reply ,
- I have to desolder the C6(The 100n Cap at 741's Inverting Input)
- Cut the Direct feedback trace on the PCB (which needs desoldering the SMT 741 :( )
- Place a 10K resistor and a 100n Cap like the Figure 6 of the OP113's Datasheet ?
- And lowering the R8 to 100 Ohm

Thanks Again for your priceless helps ,

List of 21 messages in thread
DSO's Op-Amp adder probelm :(      Farshid Jafari Harandi      02/14/06 11:41      
   Looks ok but i am missing something      Jez Smith      02/14/06 15:14      
   By the way...      Jez Smith      02/14/06 15:26      
      Answers      Farshid Jafari Harandi      02/15/06 03:41      
   I just had a thought      Jez Smith      02/14/06 15:37      
   Include R8 in the feedback loop      Kai Klaas      02/14/06 19:21      
      C6 ?      Farshid Jafari Harandi      02/14/06 20:59      
         Good idea      Kai Klaas      02/15/06 05:59      
            Pictures      Farshid Jafari Harandi      02/15/06 07:07      
               Congrets!!      Kai Klaas      02/15/06 07:54      
                  RE : Congrets!!      Farshid Jafari Harandi      02/15/06 08:26      
                     Prototyping      Kai Klaas      02/15/06 08:50      
      Corrections      Farshid Jafari Harandi      02/15/06 04:54      
         Developing      Kai Klaas      02/15/06 05:58      
            Time matters !      Farshid Jafari Harandi      02/15/06 06:56      
               some "friend"      Erik Malund      02/15/06 07:02      
                  Imagine !      Farshid Jafari Harandi      02/15/06 07:18      
               AC setting?      Kai Klaas      02/15/06 07:50      
               Obey??      Kai Klaas      02/15/06 07:52      
               Tricky      Kai Klaas      02/15/06 07:57      
   What if...      Kai Klaas      02/15/06 08:57      

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