Picoscope Software -- recommendation

[am018]

As I was buying for the software I went for the cheapest the ADC 10 with
Picoscope --- mine must have been older stock as they now supply Pico Log
instead.
I don't know what chip they are using in the 12 bit convertors but the low
end ones use the TL548. The accuracy on the 12 bit scopes isn't much better
than the low end ones ---  the reapeatability is 12bit +- 4lsb as opposed to
8 bits +-1 lsb. I use the software both with the supplied convertor and a
home built one.   The higher end units have the advantage of a standard 1
M.ohmm impedance.
I use a home brew op amp signal conditoner which gives 1 M ohmm input
impedance so I can use standard 10x probes -- I have also built in
attenuation to amp  giving selectable  2x and 4x scales.  I used and AD622 op

amp because it was designed  for easy of use with a minimum of external
components  --- one external standard value ressistor across 2 pins sets the
gain.  I have connect up the gain pins through a switch to gives gains of 1,2

and a variable of 3 to 20. (if anbody is interested in a real simple starter
project I'll draw up the plans).

I like the software -- I downloaded the demo from the web sight and found it
easy to use - the only fault I find is that for my application it would be
good to be able to re-label the Y axis  as it can only show scale labels for
the standard voltage range for the convertor.
Regards Andy MacFadyen