参数资料
型号: AD7195BCPZ-RL
厂商: Analog Devices Inc
文件页数: 9/45页
文件大小: 0K
描述: IC AFE 24BIT 4.8K 32LFSP
设计资源: Precision Weigh Scale Design Using AD7195 with Internal PGA and AC Excitation (CN0155)
标准包装: 5,000
位数: 24
通道数: 4
电压 - 电源,模拟: 4.75 V ~ 5.25 V
电压 - 电源,数字: 2.7 V ~ 5.25 V
封装/外壳: 32-WFQFN 裸露焊盘,CSP
供应商设备封装: 32-LFCSP-WQ(5x5)
包装: 带卷 (TR)
AD7195
Rev. 0 | Page 16 of 44
SINC3 CHOP ENABLED
Table 15. RMS Noise (nV) vs. Gain and Output Data Rate
Filter Word
(Decimal)
Output Data
Rate (Hz)
Settling
Time (ms)
Gain of 1
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
1023
1.56
1282
205
88
37
17
7.5
6.5
640
2.5
800
332
95
40
21
9
8
480
3.33
600
431
103
41
23
11.5
9
96
16.6
120
778
113
61
35
25
21
80
20
100
849
120
67
39
28
23
32
50
40
1061
163
92
57
41
35
16
100
20
1379
218
124
78
59
52
5
320
6.25
2828
417
233
141
106
94
2
800
2.5
40,022
4950
2475
1273
636
346
1
1600
1.25
312,540
38,890
19,800
9900
4950
2440
Table 16. Peak-to-Peak Noise (nV) vs. Gain and Output Data Rate
Filter Word
(Decimal)
Output Data
Rate (Hz)
Settling
Time (ms)
Gain of 1
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
1023
1.56
1282
1202
530
184
92
46
40
640
2.5
800
1697
566
240
120
59
42
480
3.33
600
2121
636
255
141
71
49
96
16.6
120
4667
686
318
198
141
127
80
20
100
4808
707
424
205
170
141
32
50
40
6293
990
474
382
255
219
16
100
20
9192
1414
707
474
332
354
5
320
6.25
17,680
2404
1556
849
601
566
2
800
2.5
219,200
29,000
15,560
8485
3960
2192
1
1600
1.25
1,838,500
212,200
120,200
55,870
29,000
16,970
Table 17. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate
Filter Word
(Decimal)
Output Data
Rate (Hz)
Settling
Time (ms)
Gain of 11
Gain of 81
Gain of 161
Gain of 321
Gain of 641
Gain of 1281
1023
1.56
1282
24 (23)
24 (21.5)
23.5 (20.9)
640
2.5
800
24 (22.5)
23.8 (21.3)
23.2 (20.8)
480
3.33
600
24 (22.5)
23.7 (21)
23.1 (20.6)
96
16.6
120
23.6 (21)
23.4 (20.8)
23.3 (20.8)
23.1 (20.5)
22.6 (20.1)
21.9 (19.2)
80
20
100
23.5 (21)
23.3 (20.6)
23.1 (20.5)
22.9 (20.5)
22.4 (19.8)
21.7 (19.1)
32
320
40
23.2 (20.5)
22.9 (20.3)
22.7 (20.2)
22.4 (19.8)
21.9 (19.2)
21.1 (18.4)
16
100
20
22.8 (20)
22.5 (19.8)
22.3 (19.8)
21.9 (19.3)
21.3 (18.8)
20.5 (17.8)
5
320
6.25
21.8 (19)
21.5 (19)
21.4 (18.6)
21.1 (18.5)
20.5 (18)
19.7 (17.1)
2
800
2.5
17.9 (15.4)
17.9 (15.3)
17.9 (15.2)
17.8 (15.1)
1
1600
1.25
15 (12.4)
14.9 (12.3)
14.9 (12.2)
1 The output peak-to-peak (p-p) resolution is listed in parentheses.
When ac excitation is enabled, the rms noise and resolution is the same as for chop enabled mode.
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