National Instruments NI 6115/6120 - Manual (Page 89)

Appendix A Specifications
NI 6115/6120 User Manual A-10 ni.com
Figure A-5. NI 6115 THD + N with Filters
10
62
63.2
65.6
66.8
68
70.4
71.6
100 1000
THD+N (–dBc)
Frequency (kHz)
With Filters, Full-Scale Input for Range of ±1 V
69.2
64.4
50 kHz
500 kHz