V
參數(shù)資料
型號(hào): AD7195BCPZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 5/45頁(yè)
文件大?。?/td> 0K
描述: IC AFE 24BIT 4.8K 32LFSP
設(shè)計(jì)資源: Precision Weigh Scale Design Using AD7195 with Internal PGA and AC Excitation (CN0155)
標(biāo)準(zhǔn)包裝: 1
位數(shù): 24
通道數(shù): 4
電壓 - 電源,模擬: 4.75 V ~ 5.25 V
電壓 - 電源,數(shù)字: 2.7 V ~ 5.25 V
封裝/外殼: 32-WFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-WQ(5x5)
包裝: 托盤
AD7195
Rev. 0 | Page 12 of 44
3.0
2.0
1.0
0
–1.0
–2.0
–3.0
–2.5
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
2.5
IN
L
(p
pm
o
fF
S
R
)
VIN (V)
08
77
1-
01
2
Figure 12. INL (Gain = 1)
6
4
2
0
–2
–4
–6
–0.020 –0.015 –0.010 –0.005
0
0.005
0.010
0.015
0.020
IN
L
(p
pm
o
fF
S
R
)
VIN (V)
08
77
1-
01
3
Figure 13. INL (Gain = 128)
66
64
62
60
58
56
54
–60
–40
–20
0
20
40
60
80
100
120
140
O
UT
P
UT
V
O
L
T
AG
E
(
V
)
TEMPERATURE (°C)
08
77
1-
0
14
Figure 14. Offset Error (Gain = 1, Chop Disabled)
0
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
–0.7
–60
–40
–20
0
20
40
60
80
100
120
O
F
S
ET
(
V)
TEMERATURE (°C)
08
77
1-
0
15
Figure 15. Offset Error (Gain = 128, Chop Disabled)
1.000008
1.000007
1.000006
1.000005
1.000004
1.000003
1.000002
1.000001
1.000000
–60
–40
–20
0
20
40
60
80
100
120
GA
IN
TEMPERATURE (°C)
08
77
1-
0
16
Figure 16. Gain Error (Gain = 1, Chop Disabled)
128.003
128.002
128.001
128.000
127.999
127.998
127.997
127.996
–60
–40
–20
0
20
40
60
80
100
120
GA
IN
TEMPERATURE (°C)
08
77
1-
0
17
Figure 17. Gain Error (Gain = 128, Chop Disabled)
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