Voltlog #67 - Precision Current Reference Using REF200

I don’t have any precision current source in my lab, and these are useful for testing multimeters for example. I was looking on ebay for a current reference but I wasn’t able to find an affordable one so I’ve decided to build one using the REF200 integrated circuit from Texas Instruments.

Scullcom Hobby Electronics #40 - Design & Build a Low Current Reference
https://www.youtube.com/watch?v=VrnVMnwlQXk

Schematic/Wiring Diagram
http://voltlog.com/pub/ref200-schematic.pdf

REF200 Datasheet
http://www.ti.com/lit/ds/symlink/ref200.pdf

Plastic Enclosure
http://voltlog.com/y/jp146

4mm Banana Jack
http://voltlog.com/y/e71g0

Lithium Battery Charging Protection Module
http://voltlog.com/y/oy7b1

3P4T Rotary Selection Switch
http://voltlog.com/y/a3wzk

18650 Lithium Battery Cell on Banggood
http://voltlog.com/y/0rbhv

18650 Lithium Battery Cell With Tabs on Ebay
http://voltlog.com/y/dpa3k

SO-8 Adapter PCB
http://voltlog.com/y/6m4xh

Видео Voltlog #67 - Precision Current Reference Using REF200 канала VoltLog