https://stream.echo6.co/videos/watch/06127ad2-e6e1-46c8-9378-dc9bd152a036 Part 3 in the Precision Current Source series. Dave breadboards a classic precision low current source circuit using the 10V REF102 voltage reference to generate accurate 1mA and 1uA currents. Also some talk about the errors in a typical precision circuit like this. Part 2: http://www.youtube.com/watch?v=O2ohz8DyJoQ Part 1: http://www.youtube.com/watch?v=pXMhpEi_wPU REF102: http://www.ti.com/lit/ds/sbvs022b/sbvs022b.pdf App Note: http://www.ti.com/lit/an/sbva001/sbva001.pdf OPA277: http://www.ti.com/lit/ds/symlink/opa4277.pdf VishayPG VHP100: http://www.vishaypg.com/docs/63003/vhp100.pdf Forum: http://www.eevblog.com/forum/blog/579-precision-current-source/ EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/ Wed, 10 Jun 2026 03:09:40 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/06127ad2-e6e1-46c8-9378-dc9bd152a036 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.