[sdiy] op-37

[Scott Bernardi]

AC specs for the OP-37 and 5534 are similar. OP-27/37 have better DC
specs - higher open loop gain, lower input bias currents, lower offset
voltage, drift, etc.  Low frequency noise is lower too, due to a lower
1/f corner frequency.
As an audio device, the 5534 and OP-37 are pretty similar. The OP-27/37
also have the characteristics of a high precision instrumentation opamp.
When we introduced it (I was co-designer) we billed it as the first
"triple threat" opamp (high precision, high speed, low noise). 
The OP-37 is a decompensated OP-27, stable in gains of 3 or more.

Tony Allgood wrote:
> 
> >Any opinions on the OP-37 as a good preamp ???
> 
> I used one (actually two) for years as a Riaa pre-amp. Nice, but I don't
> know whether it was any better than the 5534. And the little blighter
> isn't unity gain stable so watch out, but nor is the 5534. Basically its
> an uncompensated OP-27.
> 
> Regards,
> 
> Tony Allgood  Penrith, Cumbria, England
> 
> Oakley Modular Synth and TB3030:
> www.techrepairs.freeserve.co.uk/projects.htm
> My music: www.mp3.com/taklamakan

-- 
Scott Bernardi
sbernardi at home.net