Datasheet

AD8557
Rev. C | Page 15 of 24
GAIN VALUES
Table 6. First Stage Gain vs. First Stage Gain Code
First Stage
Gain Code First Stage Gain
First Stage
Gain Code First Stage Gain
First Stage
Gain Code First Stage Gain
First Stage
Gain Code First Stage Gain
0 2.800 32 3.273 64 3.825 96 4.471
1 2.814 33 3.289 65 3.844 97 4.493
2 2.827 34 3.305 66 3.863 98 4.515
3 2.841 35 3.321 67 3.881 99 4.537
4 2.855 36 3.337 68 3.900 100 4.559
5 2.869 37 3.353 69 3.919 101 4.581
6 2.883 38 3.370 70 3.939 102 4.603
7 2.897 39 3.386 71 3.958 103 4.626
8 2.911 40 3.403 72 3.977 104 4.649
9 2.926 41 3.419 73 3.997 105 4.671
10 2.940 42 3.436 74 4.016 106 4.694
11 2.954 43 3.453 75 4.036 107 4.717
12 2.969 44 3.470 76 4.055 108 4.740
13 2.983 45 3.487 77 4.075 109 4.763
14 2.998 46 3.504 78 4.095 110 4.786
15 3.012 47 3.521 79 4.115 111 4.810
16 3.027 48 3.538 80 4.135 112 4.833
17 3.042 49 3.555 81 4.156 113 4.857
18 3.057 50 3.573 82 4.176 114 4.881
19 3.072 51 3.590 83 4.196 115 4.905
20 3.087 52 3.608 84 4.217 116 4.929
21 3.102 53 3.625 85 4.237 117 4.953
22 3.117 54 3.643 86 4.258 118 4.977
23 3.132 55 3.661 87 4.279 119 5.001
24 3.147 56 3.679 88 4.300 120 5.026
25 3.163 57 3.697 89 4.321 121 5.050
26 3.178 58 3.715 90 4.342 122 5.075
27 3.194 59 3.733 91 4.363 123 5.100
28 3.209 60 3.751 92 4.384 124 5.125
29 3.225 61 3.770 93 4.406 125 5.150
30 3.241 62 3.788 94 4.427 126 5.175
31 3.257 63 3.806 95 4.449 127 5.200
Table 7. Second Stage Gain and Gain Ranges vs. Second Stage Gain Code
Second Stage Gain Code Second Stage Gain Minimum Combined Gain Maximum Combined Gain
0 10 28.0 52.0
1 16 44.8 83.2
2 25 70.0 130.0
3 40 112.0 208.0
4 63 176.4 327.6
5 100 280.0 520.0
6 160 448.0 832.0
7 250 700.0 1300.0