参数资料
型号: AD7195BCPZ-RL7
厂商: Analog Devices Inc
文件页数: 7/45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 14 of 44
SINC3 CHOP DISABLED
Table 9. 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
4.7
639.4
290
125
53
24
10.5
9
640
7.5
400
470
135
56
29
13
11.5
480
10
300
610
145
58
32
16
12.5
96
50
60
1100
160
86
50
35
29
80
60
50
1200
170
95
55
40
32
150
20
1500
230
130
80
58
50
16
300
10
1950
308
175
110
83
73
5
960
3.13
4000
590
330
200
150
133
2
2400
1.25
56,600
7000
3500
1800
900
490
1
4800
0.625
442,000
55,000
28,000
14,000
7000
3450
Table 10. 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
4.7
639.4
1700
750
260
140
65
56
640
7.5
400
2400
800
340
150
84
60
480
10
300
3000
900
360
200
100
70
96
50
60
6600
1000
480
290
200
180
80
60
50
6800
1100
600
300
240
200
32
150
20
8900
1400
710
470
360
310
16
300
10
13,000
2000
1000
670
470
500
5
960
3.13
25,000
3400
2200
1200
850
800
2
2400
1.25
310,000
41,000
22,000
12,000
5600
3100
1
4800
0.625
2,600,000
300,000
170,000
79,000
41,000
24,000
Table 11. 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
4.7
639.4
24 (22.5)
23.5 (21)
23 (20.4)
640
7.5
400
24 (22)
23.3 (20.8)
22.7 (20.3)
480
10
300
24 (22)
23.2 (20.5)
22.6 (20.1)
96
50
60
23.1 (20.5)
22.9 (20.3)
22.8 (20.3)
22.6 (20)
22.1 (19.6)
21.4 (18.7)
80
60
50
23 (20.5)
22.8 (20.1)
22.6 (20)
22.4 (20)
21.9 (19.3)
21.2 (18.6)
32
150
20
22.7 (20)
22.4 (19.8)
22.2 (19.7)
21.9 (19.3)
21.4 (18.7)
20.6 (17.9)
16
300
10
22.3 (19.5)
22 (19.3)
21.8 (19.3)
21.4 (18.8)
20.8 (18.3)
20 (17.3)
5
960
3.13
21.3 (18.5)
21 (18.5)
20.9 (18.1)
20.6 (18)
20 (17.5)
19.2 (16.6)
2
2400
1.25
17.4 (14.9)
17.4 (14.8)
17.4 (14.7)
17.3 (14.6)
1
4800
0.625
14.5 (11.9)
14.4 (11.8)
14.4 (11.7)
1 The output peak-to-peak (p-p) resolution is listed in parentheses.
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