FAQ: How do I determine the minimum pulse width that I can program for my N6700 series power modules?

The minimum programmable pulse width depends on a number of factors, the most important being the up-programming (risetime) and down-programming (falltime) capability of the power module. This is directly dependent on the type of load that is being used. The up-programming and down-programming times documented in the specifications guide apply to resistive loads only.

http://literature.cdn.keysight.com/litweb/pdf/N6700-90001.pdf

So for example, when an N6756A power module is programmed to generate a 0-10V step, the up-programming time is about 0.2 ms and the down programming time is about 0.3 ms. As shown in the following figure, programming a 5 millisecond pulse would generate a shape (the solid line) that is quite a bit different from the expected shape (the dotted line). The total width of the pulse from beginning to end is actually 8 ms. This is because of the power module’s risetime and fall time characteristic. In fact, you cannot program a pulse width less that 0.2 milliseconds if you expect the output pulse to even reach 10 V.

For N6776 and N6777A power modules for example, the minimum pulse width required to transition from 10% to 90% of their full-scale voltage is 20 ms.

Applies to: N6700A, N6700B, N6701A, N6702A, N6705A, N6705B, N6710B, N6711A, N6712A, N6715A, N6715B, N6731B, N6732B, N6733B, N6734B, N6735B, N6736B, N6741B, N6742B, N6743B, N6744B, N6745B, N6746B, N6773A, N6774A, N6775A, N6776A, N6777A, N6751A, N6752A, N6753A, N6754A, N6755A, N6756A, N6761A, N6762A, N6763A, N6764A, N6765A, N6766A, N6781A, N6782A, N6783A, N6784A, N6785A, N6786A

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