参数资料
型号: AD7195BCPZ-RL7
厂商: Analog Devices Inc
文件页数: 8/45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: 1,500
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 15 of 44
SINC4 CHOP ENABLED
Table 12. 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
1.175
1702
198
85
41
18
7
6
640
1.875
1067
276
92
45
22
8.5
7
480
2.5
800
332
99
46
23
10
8
96
12.5
160
707
127
61
34
23
18
80
15
133
778
141
62
35
24
21
32
37.5
53.3
990
156
85
51
38
33
16
75
26.7
1344
191
106
67
51
45
5
240
8.33
2192
325
184
120
92
78
2
600
3.33
3606
523
297
191
148
134
1
1200
1.67
9900
1345
680
368
248
200
Table 13. 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
1.175
1702
1131
474
212
92
46
40
640
1.875
1067
1556
495
248
106
57
46
480
2.5
800
2121
530
255
134
71
50
96
12.5
160
4243
707
368
198
127
120
80
15
133
5091
849
424
212
156
134
32
37.5
53.3
5870
1061
530
290
240
219
16
75
26.7
7780
1202
707
424
311
304
5
240
8.33
14,142
2121
1273
778
573
502
2
600
3.33
22,627
3606
1980
1202
990
850
1
1200
1.67
60,800
9192
4950
2475
1697
1345
Table 14. 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
1.175
1702
24 (23.1)
24 (21.8)
24 (21.7)
23.6 (20.9)
640
1.875
1067
24 (22.6)
23.9 (21.4)
23.3 (20.7)
480
2.5
800
24 (22.2)
23.8 (21.3)
23.8 (21.1)
23.2 (20.6)
96
12.5
160
23.8 (21.2)
23.5 (20.9)
23.4 (20.9)
23.2 (20.6)
22.7 (20.2)
21.9 (19.3)
80
15
133
23.6 (20.9)
23.3 (20.6)
23.3 (20.5)
23 (20.5)
22.6 (19.9)
21.8 (19.1)
32
37.5
53.3
23.2 (20.7)
22.9 (20.2)
22.8 (20.2)
22.5 (20)
22 (19.3)
21.1 (18.4)
16
75
26.7
22.8 (20.3)
22.6 (20)
22.3 (19.8)
22.1 (19.5)
21.5 (18.9)
20.6 (18)
5
240
8.33
22.2 (19.4)
21.8 (19.2)
21.6 (18.9)
21.3 (18.6)
20.7 (18.1)
19.8 (17.2)
2
600
3.33
21.4 (18.8)
21.1 (18.4)
20.9 (18.2)
20.6 (18)
20 (17.3)
19.1 (16.5)
1
1200
1.67
19.9 (17.3)
19.8 (17.1)
19.8 (16.9)
19.6 (16.9)
19.3 (16.5)
18.5 (15.8)
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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