The following table documents the bandwidth for the above-mentioned factors.
Power Module
Dynamic Current Correction
On Off
Voltage measurements
N6751A/52A, N6761A/62A 10 kHzBW(– 3dB) 10 kHzBW(– 3dB)
N6753A–56A, N6763A–66A N/A 10 kHzBW(– 3dB)
N673xB, N674xB, N677xA 10 kHzBW(– 3dB) 25 kHz*
Current Measurements
N6751A, N6752A 2 kHz BW (– 3dB) 10 kHz BW(– 3dB)
N6753A–N6756A N/A 10 kHzBW(– 3dB)
N6761A–N6762A 2 kHz BW (– 3dB) 2 kHzBW(– 3dB)
N6763A–N6766A N/A 2 kHz BW(– 3dB)
N673xB, N674xB, N677xA 2 kHz BW (– 3dB) 25 kHz *
* Note Nyquist-limited to 25 kHz due to 50 kHz digitization rate.
Note that when dynamic current correction is turned off, you will see additional current in the output
current measurement as the output capacitor charges and discharges when changing from one
voltage value to another voltage value.
The values in italics in the table will change based on the resistance of the output load. The values
specified in the table only apply when the output load resistance is at or close to zero ohms. At larger
resistance values, errors are introduced into the measurement due to the interaction of the output
load and the power module’s output capacitor. Use the following formula to calculate the largest
frequency that can be measured without errors.
f = maximum measurablefrequency without measurement errors
Co = the outputcapacitor value(from thefollowing table)
RL = the load resistance
Power Module Co Value Power Module Co Value
N6751A, N6752A, N6761A, N6762A 25.4 μF N6731B, N6741B
30 μF
N6753A, N6755A, N6763A, N6765A 4.7 μF N6732B, N6742B
23.5 μF
N6754A, N6756A, N6764A, N6766A 2.2 μF N6733B, N6743B
13.4 μF
N6773A 13.2 μF N6734B, N6744B
9.8 μF
N6774A 11.2 μF N6735B, N6745B
12.8 μF
N6775A 4.02 μF N6736B, N6746B
3.52 μF
N6776A, N6777A 3.54 μF
Keysight N6705C Operating and Service Guide 207
6 Advanced Source, Measurement, and Control
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