Evaluation of 100 ampere, 100 kHz transconductance amplifiers
D.T. Hess, K.K. Clarke · 2002
This paper presents experimental evaluation of the performance of more than ten production units of a 100 A, 100 kHz transconductance amplifier. In addition to the stability, uncertainty, distortion and frequency response, these results indicate that the output impedance may be closely modeled by a parallel combination of a resistor and a capacitor. This model then proves to be very useful for correcting the errors introduced into the high-frequency high current measurements by the parasitic load inductance.