User`s manual

X5-GSPS XMC Module
Figure 19. X5-GSPS A/D Channel 0 Front End
Figure 20. X5-GSPS A/D Channel 1 Front End
Input bandwidth measurement is shown in the data section of this chapter.
Input Range and Conversion Codes
Each A/D input has a +1V to -1V single-ended input with 50 ohm input impedance. Other input ranges may be custom
ordered.
Data output codes from the A/D system is 2's complement. The following table gives the transfer function.
Input voltage (V+-V-) Conversion Code (hex)
+1 0x7F
+0.5 0x3F
0V 0x0
-0.5 0xC0
-1 0x80
Table 14. A/D Conversion Coding
X5-GSPS User's Manual 79