I'm thinking about building a low power SMU.
We're playing with OpAmps and discrete semiconductors regularly over here, and there's a Keithley 2450 SMU with I-V Tracer Software road test going on.
Learnings from those activities can be applied here.
image: over simplified concept
This would be a low power instrument, µA up to maybe a few mA. Low voltage. A utility that can be used with analog low power devices.
Source and sink voltage and current. positive and negative.
Constant current, constant voltage.
(undefined) precision and speed
It should be possible to make this modular:
I'm going to read up on the subject now. Ideas and support are welcome.