ꢐ ꢕꢙ ꢚꢋ ꢛꢛ
ꢐ ꢕꢙ ꢚꢋ ꢛꢜ
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SBAS288D − JUNE 2003 − REVISED AUGUST 2004
Table 4. Input Referred Noise (µV, rms)
Table 6. Noise-Free Resolution (bits)
with Buffer Off
with Buffer Off
DATA
RATE
(SPS)
DATA
RATE
(SPS)
PGA
8
PGA
1
2
4
16
32
64
1
2
4
8
16
32
64
2.5
5
0.247 0.149 0.097 0.058 0.036 0.031 0.027
0.275 0.176 0.109 0.070 0.046 0.039 0.038
0.338 0.201 0.129 0.084 0.063 0.048 0.047
0.401 0.221 0.150 0.109 0.070 0.063 0.057
0.485 0.279 0.177 0.136 0.093 0.076 0.076
0.559 0.315 0.202 0.142 0.107 0.093 0.082
0.644 0.390 0.238 0.187 0.129 0.108 0.103
0.688 0.417 0.281 0.204 0.134 0.109 0.111
0.815 0.530 0.360 0.233 0.169 0.123 0.122
1.957 1.148 0.772 0.531 0.375 0.276 0.259
2.803 1.797 1.191 0.940 0.518 0.392 0.365
4.025 2.444 1.615 1.310 0.700 0.526 0.461
5.413 3.250 2.061 1.578 0.914 0.693 0.625
7.017 4.143 2.722 1.998 1.241 0.914 0.857
2.5
5
23.0
22.4
22.3
22.0
21.8
21.6
21.3
21.2
21.1
20.0
19.0
18.5
18.1
17.7
17.4
17.1
22.4
22.1
22.1
21.8
21.7
21.4
21.3
21.0
20.5
19.7
18.7
18.3
17.8
17.6
17.1
17.0
22.0
21.9
21.7
21.4
21.1
21.1
20.7
20.6
20.3
19.3
18.4
17.9
17.5
17.0
16.8
16.6
21.9
21.5
21.5
20.8
20.7
20.4
20.1
20.1
19.9
18.9
17.7
17.4
17.0
16.6
16.3
16.0
21.3
21.2
20.8
20.6
20.3
20.0
19.8
19.8
19.5
18.3
17.5
17.0
16.7
16.2
15.9
15.6
21.1
20.4
20.3
19.9
19.5
16.4
19.1
19.1
19.0
17.8
16.9
16.4
16.1
15.7
15.3
15.0
20.0
19.4
19.2
19.0
18.6
18.5
18.2
18.1
17.9
16.9
15.9
15.6
15.2
14.8
14.4
14.4
10
10
15
15
25
25
30
30
50
50
60
60
100
500
1000
2000
3750
7500
100
500
1000
2000
3750
7500
15,000
30,000
15,000 8.862 5.432 3.378 2.411 1.569 1.149 1.051
30,000 10.341 6.137 3.873 2.775 1.805 1.313 1.211
Table 5. Effective Number of Bits (ENOB, rms)
with Buffer Off
DATA
RATE
(SPS)
PGA
8
1
2
4
16
32
64
2.5
5
25.3
25.1
24.8
24.6
24.3
24.1
23.9
23.8
23.5
22.3
21.8
21.2
20.8
20.4
20.1
19.9
25.0
24.8
24.6
24.4
24.1
23.9
23.6
23.5
23.2
22.1
21.4
21.0
20.6
20.2
19.8
19.6
24.6
24.5
24.2
24.0
23.8
23.6
23.3
23.1
22.7
21.6
21.0
20.6
20.2
19.8
19.5
19.3
24.4
24.1
23.8
23.4
23.1
23.1
22.7
22.5
22.4
21.2
20.3
19.9
19.6
19.3
19.0
18.8
24.0
23.7
23.2
23.1
22.7
22.5
22.2
22.1
21.8
20.7
20.2
19.8
19.4
18.9
18.6
18.4
23.2
22.9
22.6
22.2
22.0
21.7
21.5
21.5
21.3
20.1
19.6
19.2
18.8
18.4
18.1
17.9
22.5
22.0
21.7
21.4
21.0
20.9
20.5
20.4
20.3
19.2
18.7
18.4
17.9
17.5
17.2
17.0
10
15
25
30
50
60
100
500
1000
2000
3750
7500
15,000
30,000
13
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