Tweakers' Asylum

• Re: Single-to-quad Op-amp Adapters?? - DaveA 10:43:35 06/16/04 (1)
  In Reply to: Single-to-quad Op-amp Adapters?? posted by Sampsa on June 14, 2004 at 14:46:30:

  Try using an OP467. About $20/ unit but an excellent replacement.
  
  

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  • Re: Single-to-quad Op-amp Adapters?? - Sampsa 11:15:01 06/16/04 (0)
    In Reply to: Re: Single-to-quad Op-amp Adapters?? posted by DaveA on June 16, 2004 at 10:43:35:

    Thanks! The specs look very impressive. I have to check it out. Are there any other, possibly better replacements? I'm also going to try OPA4132/4 and OPA4227/8.
    
    

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• Mo' is Better?? - Bare 12:39:23 06/15/04 (1)
  In Reply to: Single-to-quad Op-amp Adapters?? posted by Sampsa on June 14, 2004 at 14:46:30:

  What makes you think that 'Ganging' the OpAmps is gonna be an 'Improvement'?? Multiple Errors, Cascading tolerances..without even thinking about input: signal and PS issues.
  IF you must.. buy/install a 'better' replacement.
  Although I'm of the opinion that the Best Op Amp is NO opamp :-)
  
  

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  • Re: Mo' is Better?? - Sampsa 12:43:53 06/15/04 (0)
    In Reply to: Mo' is Better?? posted by Bare on June 15, 2004 at 12:39:23:

    Simply because OPA627 is a great op-amp, but unfortunately only a single channel one. Many others have used two of them to get dual channels, so I was thinking that maybe four might work together to get quad channels.

    And unfortunately, I don't want to redesign the circuit to get rid of the op-amp entirely.
    
    

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• Re: Single-to-quad Op-amp Adapters?? - Marty 20:46:19 06/14/04 (0)
  In Reply to: Single-to-quad Op-amp Adapters?? posted by Sampsa on June 14, 2004 at 14:46:30:

  Will the supply rails handle the 4 amps? This is likely a DIY
  adaptor project: a DIP header on one side of a small perf board
  and 4 sockets on the other side. Due to extra circuit path lengths,
  there could be HF stability issues unless proper rail decoupling
  is maintained.
  
  

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