Analog Electronics with LabVIEW®

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P10.3. Evaluation of the Mirror-Current Circuit

Procedure

Install the additional circuit components, which form the current source. Set your resistor values in the Digital Controls. Use Initial Chan0_out from RefCurrent.vi. Run MirrorCurrent.vi to assess the mirror current (current-source current). Chan0_out is swept from the Initial value to ≈ –10 V. Chan1_out is varied downward to maintain V_SD2 = V_SD3. Any difference between the currents indicates a difference in transistor parameters of M₂ and M₃.

Components

R_D2 ≈ R_Ref

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