MAX11253 Datasheet, PDF (17/51 Pages) Maxim Integrated Products – Longer Battery Life for Portable Applications

MAX11253
16-Bit, 6-Channel, 64ksps, 6.2nV/√Hz PGA,
Delta-Sigma ADC with SPI Interface
Table 2. Noise vs. PGA Mode and Gain (Single-Cycle Conversion)
DATA
RATE
(sps)
1
LP LN
SINGLE-CYCLE CONVERSION MODE
INPUT-REFERRED NOISE VOLTAGE (µVRMS) vs. PGA GAIN SETTING
2
4
8
16
32
64
LP LN LP LN LP LN LP LN LP LN LP LN
128
LP LN
50 31.73 31.72 15.86 15.86 7.93 7.93 3.97 3.96 1.98 1.98 0.99 0.99 0.50 0.50 0.26 0.25
62.5 31.73 31.72 15.86 15.86 7.93 7.93 3.97 3.97 1.98 1.98 0.99 0.99 0.50 0.50 0.26 0.25
100 31.74 31.73 15.87 15.86 7.93 7.93 3.97 3.97 1.99 1.98 1.00 0.99 0.50 0.50 0.27 0.26
125 31.74 31.73 15.87 15.86 7.93 7.93 3.97 3.97 1.99 1.98 1.00 0.99 0.51 0.50 0.27 0.26
200 31.74 31.73 15.87 15.86 7.94 7.93 3.97 3.97 1.99 1.98 1.00 0.99 0.51 0.50 0.27 0.26
250 31.74 31.73 15.87 15.87 7.94 7.93 3.97 3.97 1.99 1.99 1.00 1.00 0.51 0.50 0.28 0.26
400 31.76 31.74 15.88 15.87 7.94 7.94 3.97 3.97 1.99 1.99 1.00 1.00 0.52 0.51 0.29 0.27
500 31.77 31.74 15.88 15.87 7.94 7.94 3.97 3.97 1.99 1.99 1.01 1.00 0.52 0.51 0.31 0.28
800 31.79 31.75 15.90 15.88 7.95 7.94 3.98 3.97 2.00 1.99 1.02 1.01 0.55 0.52 0.34 0.29
1,000 31.80 31.76 15.91 15.88 7.96 7.94 3.99 3.97 2.01 1.99 1.03 1.01 0.56 0.53 0.36 0.31
1,600 31.88 31.80 15.95 15.90 7.98 7.95 4.00 3.98 2.02 2.00 1.05 1.02 0.61 0.56 0.43 0.35
2,000 31.94 31.83 15.98 15.92 8.00 7.96 4.02 3.99 2.04 2.01 1.08 1.04 0.64 0.57 0.49 0.39
3,200 32.02 31.87 16.02 15.94 8.03 7.98 4.04 4.00 2.07 2.02 1.11 1.05 0.70 0.61 0.55 0.43
4,000 32.14 31.93 16.08 15.97 8.07 8.00 4.07 4.02 2.10 2.04 1.16 1.08 0.76 0.64 0.64 0.49
6,400 32.55 32.14 16.31 16.09 8.20 8.07 4.17 4.07 2.21 2.10 1.31 1.16 0.95 0.76 0.87 0.64
12,800 33.52 32.65 16.81 16.35 8.48 8.22 4.37 4.18 2.41 2.21 1.58 1.33 1.27 0.97 1.19 0.87
LP = Low Power, LN = Low Noise
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