johnkaz77
Junior Member level 1
Hi everyone,I want to make a programmable current source (or current sink,depending on a digital signal) to provide me 0 to 10uA,10 bits resolution,but i am a beginner and i don't have a clue...Can anyone help???
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HI. I would have tried to solve this using a current source with two outouts. Then one output should be connected to an inverted current mirror (two pnp instead of two npn bjt's) wich in turn will provide output from current source.Could you explain that a little bit more?I guess my output will be from the unconnected wire,but how can i select if it will be sourcing or sinking?I want an external digital signal to control that.And the transistor,why is it used for?(as i told you i am beginner...)