Without causing to much error because of the sense resistor (=
 burden
voltage ), use a four wire power supply with the resistor in=
 series
in the source line and measure the voltage on the resistor.
You can find lots of good info about that on the Keithley=
 website.

Peter Schultz

On Wed, 25 Jun 2003 11:41:12 -0700, Quah wrote:
>What is the best tools required to measure current less than 1=
 mA ?
>
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