Hello guys,I want to design voltage-controlled current source for my current project. The currents should be in a range from 0 to 2.5mA. Load resistance should be up to 5Kohm. My idea was to use unity gain amplifier together with the buffer in the configuration like this: Voltage-dependent generated current can be expressed as
I = Vsine/R8;
You could check this article to help you in your design.
AD8276, a unity gain difference amplifier, is a good candidate for your design.
It costs a dollar on A grade, here is the product page on this…
Also, looking at the datasheet of LT6011 and LT1006, LT6011 input is limited to operate to V- + 1V while LT1006 input common mode include ground in single supply operation. Furthermore, please read page…
Based on the circuit on your first post, I think you are doing a low side sensing.
LT6081 has a good application circuit example on doing this on page 13 of its datasheet.
It costs a dollar on A grade, here is the product page on this link.