AD5421_11 AD [Analog Devices], AD5421_11 Datasheet - Page 13

• Manufacturer Part Number: AD5421_11
• Description: 16-Bit, Serial Input, Loop-Powered, 4 mA to 20 mA DAC
• Manufacturer: AD [Analog Devices]

–0.01
–0.02
–0.03
–0.04
–0.05
–0.06
–0.01
–0.02
–0.03
–0.04
–0.05
–0.06
–0.1
–0.2
–0.3
–0.4
–0.5
0.04
0.03
0.02
0.01
0.04
0.03
0.02
0.01
0.5
0.4
0.3
0.2
0.1
Figure 11. Differential Nonlinearity Error vs. Temperature
0
–40
0
0
–40
–40
Figure 12. Total Unadjusted Error vs. Temperature
V
4mA TO 20mA RANGE
R
EXT NMOS
V
4mA TO 20mA RANGE
R
EXT NMOS
LOOP
LOAD
LOOP
LOAD
Figure 13. Full-Scale Error vs. Temperature
EXT V
EXT V
INT V
INT V
EXT V
EXT V
INT V
INT V
= 24V
= 24V
= 250Ω
= 250Ω
–15
–15
–15
REF
REF
REF
REF
REF
REF
REF
REF
, INT R
, EXT R
, INT R
, EXT R
, INT R
, EXT R
, INT R
, EXT R
10
10
10
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
MAX DNL
MIN DNL
SET
SET
SET
SET
SET
SET
SET
SET
35
35
35
V
4mA TO 20mA RANGE
R
LOOP
LOAD
60
60
60
= 24V
= 250Ω
85
85
85
Rev. 0 | Page 13 of 32
–0.0002
–0.0004
–0.0006
0.0006
0.0004
0.0002
0.0029
0.0027
0.0025
0.0023
0.0021
0.0019
0.0017
0.0015
0.0024
0.0022
0.0020
0.0018
0.0016
0.0014
0.0012
0.0010
Figure 14. Integral Nonlinearity Error vs. Loop Supply Voltage
Figure 15. Total Unadjusted Error vs. Loop Supply Voltage
0
0
0
0
R
T
3.8mA TO 21mA RANGE
EXT V
EXT R
R
T
3.8mA TO 21mA RANGE
EXT V
EXT R
R
T
3.8mA TO 21mA RANGE
EXT V
EXT R
A
A
A
LOAD
LOAD
LOAD
Figure 16. Offset Error vs. Loop Supply Voltage
= 25°C
= 25°C
= 25°C
REF
REF
REF
SET
SET
SET
= 250Ω
= 250Ω
= 250Ω
10
10
10
LOOP SUPPLY VOLTAGE (V)
LOOP SUPPLY VOLTAGE (V)
LOOP SUPPLY VOLTAGE (V)
20
20
20
MAX INL
MIN INL
30
30
30
40
40
40
50
50
50
AD5421
6
6
6
0
0
0