- #1
likephysics
- 640
- 4
I need a constant current source ckt which can source current in the range of 0.1 to 1mA, with +/-1% tolerance, with Vcc 3.3v
Any ideas?
I found this - http://www.ecircuitcenter.com/Circuits_Audio_Amp/BJT Current_Source/BJT_Current_Source.htm
But no info on tolerance.
What happens to Io with change in beta?
Any ideas?
I found this - http://www.ecircuitcenter.com/Circuits_Audio_Amp/BJT Current_Source/BJT_Current_Source.htm
But no info on tolerance.
What happens to Io with change in beta?