Data Translation DT9820 Series, User Manual

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Appendix A
74
Table 7 lists the specifications for the A/D subsystem.
Table 7: A/D Subsystem Specifications
Feature
DT9821/DT9822
Specifications
Number of analog inputs 4 Differential
Number of gains 7 (1, 2, 4, 8, 16, 32, 64)
Resolution 24 bits
Data encoding Binary/Offset Binary
System accuracy
(full-scale)
Gain = 1:
Gain = 2:
Gain = 4:
Gain = 8:
Gain = 16:
Gain = 32:
Gain = 64:
0.003%
0.004%
0.005%
0.006%
0.007%
0.008%
0.010%
Nonlinearity (integral) ±1.0 LSBs
Differential linearity ±0.5 LSBs (no missing codes)