參數(shù)資料
型號(hào): ADS1256
英文描述: Very Low Noise, 24-Bit Analog-to-Digital Converter
中文描述: 極低噪聲,24位模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù): 13/39頁(yè)
文件大?。?/td> 427K
代理商: ADS1256
SBAS288D JUNE 2003 REVISED AUGUST 2004
www.ti.com
13
Table 4. Input Referred Noise (
μ
V, rms)
with Buffer Off
DATA
RATE
(SPS)
PGA
1
2
4
8
16
32
64
2.5
5
10
15
25
30
50
60
100
500
1000
2000
3750
7500
15,000
30,000
0.247
0.275
0.338
0.401
0.485
0.559
0.644
0.688
0.815
1.957
2.803
4.025
5.413
7.017
8.862
10.341
0.149
0.176
0.201
0.221
0.279
0.315
0.390
0.417
0.530
1.148
1.797
2.444
3.250
4.143
5.432
6.137
0.097
0.109
0.129
0.150
0.177
0.202
0.238
0.281
0.360
0.772
1.191
1.615
2.061
2.722
3.378
3.873
0.058
0.070
0.084
0.109
0.136
0.142
0.187
0.204
0.233
0.531
0.940
1.310
1.578
1.998
2.411
2.775
0.036
0.046
0.063
0.070
0.093
0.107
0.129
0.134
0.169
0.375
0.518
0.700
0.914
1.241
1.569
1.805
0.031
0.039
0.048
0.063
0.076
0.093
0.108
0.109
0.123
0.276
0.392
0.526
0.693
0.914
1.149
1.313
0.027
0.038
0.047
0.057
0.076
0.082
0.103
0.111
0.122
0.259
0.365
0.461
0.625
0.857
1.051
1.211
Table 5. Effective Number of Bits (ENOB, rms)
with Buffer Off
DATA
RATE
(SPS)
PGA
1
2
4
8
16
32
64
2.5
5
10
15
25
30
50
60
100
500
1000
2000
3750
7500
15,000
30,000
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
Table 6. Noise-Free Resolution (bits)
with Buffer Off
DATA
RATE
(SPS)
PGA
1
2
4
8
16
32
64
2.5
5
10
15
25
30
50
60
100
500
1000
2000
3750
7500
15,000
30,000
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
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