Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
MrAl, you have got the circuit pretty much sussed from what you say in your posts, but there is just one thing, the circuit of post 18 and this post are fully designed and would function if built, although I didn't bother to specify an actual PMOSFET. When I said that it wasn't fully developed I didn't mean the basic function as you imply. I was thinking of minimising costs, optimising the layout and cooling etc and getting the last knockings of accuracy.
Hi all:
How would I go about producing super precision ref Vs with 0.25% precision?
Max load is 50 Ohms.
Specifically: (0.5V, 0.2V, 0.1V, 50mV, 20mV, 1V and 10V)
My suggested design should produce a reasonably good square wave, but it would be much better to have a separate circuit on the scope calibrator designed especially for this purpose. The same general approach could be used, but simplified with only one low output voltage and using fast components.
There is the spec. There are no exceptions, apart from the 10V output which I clearly stated would not be met. There is no calibration!