National Instruments Computer-Based Instruments Digital Oscilloscope for PCI NI 5911 Manual de usuario Pagina 43

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Appendix B Digitizer Basics
NI 5911 User Manual B-8 ni.com
Figure B-7. Dynamic Range of an 8-Bit ADC with Three Different Gain Settings
+127 LSB
+38.4 LSB
38.4 LSB
0 LSB
128 LSB
+127 LSB
+7 LSB
8 LSB
0 LSB
128 LSB
+127 LSB
+153 LSB
154 LSB
0 LSB
128 LSB
Acquired Signal
a. Gain = 1, Input Range ±5 V, Number of LSBs = 15
b. Gain = 5, Input Range ±1 V, Number of LSBs = 77
c. Gain = 20, Input Range ±250 mV, Number of LSBs = 307.2
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