From: dk4xp@arcor.de   
      
   Am 17.02.26 um 19:18 schrieb Phil Hobbs:   
   > Gerhard Hoffmann  wrote:   
   >> Am 17.02.26 um 18:34 schrieb Phil Hobbs:   
   >>   
   >>> I'm using a square-root version of this one in a demo for a circuit   
   >>> whose bandwidth wants to be quadratic in the supply voltage.  It's fine   
   >>> inside a feedback loop, and may eventually get put in an ASIC.   
   >>> (Unfortunately they don't make the CA3096 anymore.)   
   >>   
   >> Renesas  HFA3046, HFA3096, HFA3127, HFA3128   
   >>   
   >> I got them even space-proof, but not really cheap..   
   >>   
   >   
   > I know about them, and tried making a laser noise canceller out of an   
   > HFA3046 once. Unfortunately their R_ee’ is horrible, like 2 ohms iirc,   
   > which trashes their log conformity.   
      
   I've made a dual slope pulse width magnifier with them, 20-30ns to   
   20-30 us. I noted that temperature had a horrific influence during   
   the first slope that was _exactly_ corrected for in the second slope.   
      
   One of the precious moments when you note that you were REALLY lucky!   
   (repeatable 5 ps performance over temp)   
      
   > Cheers   
   Gerhard   
      
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