help: V-I converter

[ss2007]

Hi every one , I have a project to design V-I converter with high output impedance and the output current should be in mico-ampear.

so, I need some information about different V-I circuits and diagrams using op-amp . Pls help me as soon as possiable

 

[Hero999]

You haven't said what voltage range you're after.

Is this college work?

A resistor will do that.

A 1hm: resistor will convert voltages between 0-1V to currents between 0-1:mu:A. The output impedance will also be very high - 1Mhm:.

A 10Mhm: resistor will convert voltages from 0 to 10V to 0 to 1:mu:A.

Just use Ohm's law.