AD5421BREZ-REEL 查看數據表（PDF） - Analog Devices
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AD5421BREZ-REEL Datasheet PDF : 36 Pages
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Data Sheet
0.5
0.4
0.3
MAX DNL
0.2
0.1
VLOOP = 24V
4mA TO 20mA RANGE
0
RLOAD = 250Ω
–0.1
–0.2
MIN DNL
–0.3
–0.4
–0.5
–40
–15
10
35
60
85
TEMPERATURE (°C)
Figure 13. Differential Nonlinearity Error vs. Temperature
0.04
0.03
0.02
0.01
0
–0.01
–0.02
–0.03
VLOOP = 24V
4mA TO 20mA RANGE
RLOAD = 250Ω
EXT NMOS
–0.04
EXT VREF, INT RSET
EXT VREF, EXT RSET
–0.05
INT VREF, INT RSET
INT VREF, EXT RSET
–0.06
–40
–15
10
35
60
85
TEMPERATURE (°C)
Figure 14. Total Unadjusted Error vs. Temperature
0.04
0.03
0.02
0.01
0
–0.01
–0.02
–0.03
VLOOP = 24V
4mA TO 20mA RANGE
RLOAD = 250Ω
EXT NMOS
–0.04
EXT VREF, INT RSET
EXT VREF, EXT RSET
–0.05
INT VREF, INT RSET
INT VREF, EXT RSET
–0.06
–40
–15
10
35
60
85
TEMPERATURE (°C)
Figure 15. Full-Scale Error vs. Temperature
AD5421
0.0006
0.0004
MAX INL
0.0002
0
–0.0002
MIN INL
RLOAD = 250Ω
–0.0004
TA = 25°C
3.8mA TO 21mA RANGE
EXT VREF
EXT RSET
–0.0006
0
10
20
30
40
50
60
LOOP SUPPLY VOLTAGE (V)
Figure 16. Integral Nonlinearity Error vs. Loop Supply Voltage
0.0029
0.0027
0.0025
0.0023
0.0021
0.0019
RLOAD = 250Ω
TA = 25°C
0.0017 3.8mA TO 21mA RANGE
EXT VREF
EXT RSET
0.0015
0
10
20
30
40
50
60
LOOP SUPPLY VOLTAGE (V)
Figure 17. Total Unadjusted Error vs. Loop Supply Voltage
0.0024
0.0022
0.0020
RLOAD = 250Ω
TA = 25°C
3.8mA TO 21mA RANGE
EXT VREF
EXT RSET
0.0018
0.0016
0.0014
0.0012
0.0010
0
10
20
30
40
50
60
LOOP SUPPLY VOLTAGE (V)
Figure 18. Offset Error vs. Loop Supply Voltage
Rev. H | Page 15 of 36
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