MAX1415 Datasheet, PDF (10/36 Pages) Maxim Integrated Products – 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs

16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADCs
Table 1. MAX1415—Output RMS Noise vs. Gain and Output Data Rate (3V)
FILTER FIRST NOTCH
AND OUTPUT DATA
RATE (Hz)
-3dB FREQUENCY
(Hz)
1
TYPICAL OUTPUT RMS NOISE (µV)
GAIN
2
4
8
16
32
64
128
BUFFERED (f_CLKIN = 1MHz)
20
5.24
2.85
1.63
2.16
0.70
0.67
0.63
0.64
0.62
25
6.55
3.46
1.92
1.13
6.05
0.75
0.73
0.70
0.70
100
26.2
48.94 26.98 11.99 0.85
3.44
2.27
1.66
1.72
200
52.4
270.91 161.33 66.19 32.64 16.89 8.34
4.98
4.86
UNBUFFERED (f_CLKIN = 1MHz)
20
5.24
3.09
1.70
1.05
0.72
0.66
0.64
0.60
0.60
25
6.55
3.58
1.94
1.23
0.80
0.77
0.73
0.70
0.70
100
26.2
51.92 24.54 11.47 6.14
3.26
2.16
1.67
1.64
200
52.4
263.86 136.78 65.40 34.51 16.64 8.97
4.96
4.80
BUFFERED (f_CLKIN = 2.4576MHz)
50
13.1
3.03
1.97
1.34
1.01
0.95
0.93
0.96
0.95
60
15.72
3.62
2.14
1.52
1.05
0.98
1.03
1.04
1.00
250
65.5
51.02 25.44 12.95 6.19
3.84
2.70
2.35
2.23
500
131
280.58 138.29 70.21 34.60 18.44 9.45
5.40
5.34
UNBUFFERED (f_CLKIN = 2.4576MHz)
50
13.1
3.76
1.63
0.96
0.69
0.66
0.64
0.59
0.61
60
15.72
3.11
1.86
1.12
0.78
0.75
0.71
0.71
0.69
250
65.5
48.28 25.13 12.75 6.18
3.32
2.12
1.59
1.62
500
131
280.67 143.15 75.84 34.70 17.88 9.19
4.90
4.98
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