Datasheet

AD7707
Rev. B | Page 19 of 52
Table 16. Register Selection
RS2 RS1 RS0 Register Register Size
0 0 0 Communications register 8 bits
0 0 1 Setup register 8 bits
0 1 0 Clock register 8 bits
0 1 1 Data register 16 bits
1 0 0 Test register 8 bits
1 0 1 No operation
1 1 0 Zero-scale calibration register 24 bits
1 1 1 Full-scale calibration register 24 bits
Table 17. Channel Selection for AD7707
CH1 CH0 AIN Reference Calibration Register Pair
0 0 AIN1 LOCOM Register Pair 0
0 1 AIN2 LOCOM Register Pair 1
1 0 LOCOM LOCOM Register Pair 0
1 1 AIN3 HICOM Register Pair 2