Рет қаралды 74,950
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: • EEVblog #577 - Precisi...
Part 1: • EEVblog #567 - Precisi...
REF102: www.ti.com/lit/ds/sbvs022b/sbv...
App Note: www.ti.com/lit/an/sbva001/sbva...
OPA277: www.ti.com/lit/ds/symlink/opa4...
VishayPG VHP100: www.vishaypg.com/docs/63003/vh...
Forum: www.eevblog.com/forum/blog/579...
EEVblog Main Web Site:
www.eevblog.com
EEVblog Amazon Store:
astore.amazon.com/eevblogstore-20
Donations:
www.eevblog.com/donations/
Projects:
www.eevblog.com/projects/
Electronics Info Wiki:
www.eevblog.com/wiki/