National Instruments NI 5911 Computer Accessories User Manual


  Open as PDF
of 61
 
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
 previous next