Ian,
the noise is not random. With no load, I scope a voltage output on channel A. I see something like:
-----------!--!----------------!--!--------------!--!------------
The pk - pk of the big spikes is 150mV. The baseline is approx. 50mV. The period of the big spikes is approx 37.6uS, while the space between the spike couplets is approx 5.7uS. The big spikes consist of maybe ten cycles of approx 20MHz. The "noise" on the baseline looks to be approx 100MHz.
I set the voltage using pixelpulse with the default settings. I just imagine this is USB "noise"? Any suggestions would help
As far as additional features - I work mainly with much lower currents - force & measure - in the uA range. 100uA resolution is much to high for me. I could use higher voltages - up to 10V or so - but that is secondary for me.
My biggest challenge is SW. In this last project, I needed to control two pieces of equipment (cee & another) synchronously. I used the REST api, but was a bit overwhelmed trying to bind in the other equipment or move to another scripting language and find an http client to run cee.
In my humble opinion, the hardware nowadays is secondary to the software support. And for us hardware designers who muddle thru the software issues, numerous examples help tremendously.
Thanks for hearing me out
John Hull
Technical Marketing Mgr
NXP Semiconductors