MAX11270 Datasheet, PDF (19/46 Pages) Maxim Integrated Products – Integrated PGA

MAX11270
24-Bit, 10mW, 130dB SNR, 64ksps Delta-Sigma
ADC with Integrated PGA
Table 2. Continuous Mode Input-Referred Noise (µV_RMS) vs. Data Rate and PGA Gain
with Sinc Filter^*
DATA
RATE
(sps)
1
LN
LP
2
LN
LP
PGA ENABLED: GAIN SETTING
4
8
16
LN
LP LN LP LN LP
32
LN LP
64
LN LP
128
LN LP
1.9
0.825 0.805 0.837 0.838 0.451 0.475 0.220 0.217 0.109 0.110 0.058 0.057 0.029 0.031 0.017 0.019 0.011 0.020
3.9
0.824 0.833 0.857 0.865 0.446 0.455 0.215 0.222 0.111 0.113 0.060 0.060 0.030 0.034 0.018 0.021 0.013 0.016
7.8
0.866 0.844 0.875 0.878 0.452 0.471 0.221 0.223 0.116 0.117 0.060 0.061 0.034 0.038 0.021 0.024 0.016 0.021
15.6
0.868 0.865 0.893 0.878 0.476 0.476 0.224 0.225 0.120 0.123 0.065 0.072 0.037 0.044 0.026 0.031 0.022 0.030
31.2
1.350 1.368 1.391 1.412 0.741 0.750 0.352 0.357 0.190 0.189 0.101 0.103 0.058 0.062 0.039 0.044 0.032 0.039
62.5
1.717 1.717 1.766 1.800 0.938 0.957 0.455 0.453 0.239 0.238 0.129 0.131 0.076 0.080 0.052 0.060 0.043 0.054
125
2.580 2.611 2.658 2.682 1.418 1.427 0.684 0.686 0.355 0.355 0.191 0.194 0.111 0.119 0.075 0.087 0.061 0.077
250
3.238 3.283 3.346 3.370 1.786 1.790 0.860 0.865 0.447 0.449 0.243 0.249 0.144 0.156 0.101 0.120 0.085 0.108
500
5.031 5.084 5.177 5.211 2.758 2.764 1.333 1.332 0.686 0.690 0.370 0.378 0.214 0.232 0.145 0.172 0.120 0.153
1000
6.385 6.439 6.586 6.600 3.500 3.501 1.692 1.693 0.878 0.886 0.476 0.490 0.281 0.309 0.197 0.236 0.166 0.212
2000
9.980 10.059 10.352 10.315 5.454 5.484 2.633 2.637 1.360 1.370 0.728 0.747 0.420 0.456 0.282 0.335 0.232 0.295
4000 12.674 12.749 13.146 13.073 6.956 6.932 3.339 3.353 1.723 1.743 0.931 0.963 0.545 0.594 0.372 0.445 0.311 0.395
8000 19.739 19.953 20.455 20.371 10.814 10.830 5.198 5.204 2.674 2.695 1.421 1.456 0.799 0.857 0.512 0.599 0.403 0.510
16000 24.895 25.179 25.751 25.728 13.670 13.602 6.556 6.568 3.364 3.373 1.773 1.808 0.980 1.036 0.607 0.698 0.465 0.576
32000 39.335 39.649 40.563 40.547 21.501 21.502 10.328 10.287 5.260 5.292 2.758 2.807 1.510 1.579 0.905 1.017 0.659 0.811
64000 49.899 50.430 51.554 51.724 27.340 27.206 13.142 13.149 6.729 6.740 3.519 3.590 1.920 2.023 1.165 1.313 0.855 1.040
*V_IN = 0V. V_AVDD = 3.6V, V_AVSS = 0V, V_REF = 3.6V, T_A = +25°C, external clock. This table is not tested and is based on character-
ization data.
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