Current Waveforms
The NI 4070/4071/4072 can acquire current waveforms at frequencies up to 400 kHz. At high frequencies, the apparent burden voltage could increase from that listed in the specifications due to internal inductance.
For the maximum burden voltage per range in AC current, refer to Related Documentation for the specifications documents for the DMMs.
Apparent burden voltage is even higher when using long cable runs, which add more inductance and resistance. Minimize cable length or use a shunt resistor local to the DUT if wide bandwidth current waveform acquisition is desired. The following figure shows the burden voltage effect due to inductance:
For more information about burden voltage, refer to Burden Voltage.