EEVblog #579 - Precision Low Current Source

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: Part 1: REF102: App Note: OPA277: VishayPG VHP100: Forum: EEVblog Main Web Site: EEVblog Amazon Store: Donations: Projects: Electronics Info Wiki: Теги: precision current source,current source,diy,ltc6655,breadboard,voltage reference,pass transistor,series pass,transistor,darlington,testing,troubleshooting,oscilloscope,circuit,schematic,ref102,10v,error analysis,error margin,drift,measurement,ppm,temperature,vishay,vhp100