Topic

precision measurement

3 videos. Ranked by independent recommendations, not by views.

1. 

   1 What's All This Femtoampere Stuff, Anyhow?

   andyaronsonnsc 3 people · 4 months · since Sept 2018

   A deep look at measuring femtoampere level op amp bias and leakage currents, which accidentally turned into a cosmic ray detector, cited for ultra low current design.

2. 

   2 EEVblog #24 - Chopper Operational Amplifiers

   EEVblog 3 people · 3 months · since Oct 2013

   Dave Jones explains chopper and auto-zero op-amp techniques and why they suit low offset current measurement, cited as the usual primer on the topic.

3. 

   3 Ultralow Noise Tester: 9V Battery vs. 7805 vs. LTZ1000

   Marco Reps 3 people · 3 months · since Oct 2020

   Cited for a moment showing popcorn noise from a semiconductor and for illustrating how microvolt level readings react to the slightest air movement.