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AD5757 Data Sheet
Rev. D | Page 14 of 44
TYPICAL PERFORMANCE CHARACTERISTICS
CURRENT OUTPUTS
–0.0025
–0.0020
–0.0010
0.0005
0
0.0015
–0.0015
–0.0005
0.0010
0.0020
0.0025
0 10000
20000
30000
40000
50000 60000
INL ERROR (%FSR)
CODE
A
V
DD
= 15V
T
A
= 25°C
09225-149
4m
A T
O 20mA, EXTERNA
L R
SET
4m
A T
O 20mA, EXTERNA
L R
SET
, WITH DC-
T
O-DC CONVERTER
4mA
T
O 20mA, INTERNAL
R
SET
4m
A
TO 20mA, INTERNA
L R
SET
, WITH DC-TO-DC CONVERTER
4m
A T
O 20mA, EXTERNAL
R
SET
, EXTERNAL PMOS MODE
Figure 8. Integral Nonlinearity vs. Code
0 10000
20000
30000
40000
50000 60000
DNL ERROR (LSB)
CODE
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
09225-150
AV
DD
= 15V
T
A
= 25°C
4mA T
O 20mA, EXTERNAL R
SET
4mA TO 20mA, EXTERNAL R
SET
, WITH DC-TO-DC CONVERTER
4mA TO 20mA, INTERNAL R
SET
4mA TO 20mA, INTERNAL R
SET
, WITH DC-TO-DC CONVERTER
4mA
TO 20mA, EXTERNAL R
SET
, EXTERNAL PMOS MODE
Figure 9. Differential Nonlinearity vs. Code
0 10000
20000
30000
40000
50000
60000
TOTAL UNADJUSTED ERROR (%FSR)
CODE
–0.015
–0.010
–0.005
0
0.005
0.010
0.015
0.020
0.025
0.030
0.035
09225-151
AV
DD
= 15V
T
A
= 25°C
ALL
CHANNELS ENABLED
4m
A TO 20mA, EXTERNA
L R
SET
4m
A T
O 20mA, EXTERNAL R
SET
, WITH DC-
TO-DC CONVERTER
4mA T
O 20mA, INTERNAL R
SET
4m
A T
O 20mA, INTERNAL
R
SET
, WITH DC-
TO-DC CONVERTER
4m
A TO 20mA, EXTERNA
L R
SET
, EXTERNAL
PMOS MODE
Figure 10. Total Unadjusted Error vs. Code
–0.0010
–0.0008
–0.0006
–0.0004
–0.0002
0
0.0002
0.0004
0.0006
0.0008
0.0010
INL ERROR (%FSR)
4mA TO 20mA RANGE MAX INL
0mA TO 20mA RANGE MAX INL
0mA TO 24mA RANGE MAX INL
4mA TO 20mA RANGE MAX INL
0mA TO 24mA RANGE MIN INL
0mA TO 20mA RANGE MIN INL
AV
DD
= 15V
–40
–20
0
20
40
60
80
100
TEMPERATURE (°C)
09225-152
Figure 11. Integral Nonlinearity vs. Temperature, Internal R
SET
–0.0020
–0.0015
–0.0010
–0.0005
0
0.0005
0.0010
0.0015
0.0020
INL ERROR (%FSR)
4mA TO 20mA RANGE MAX INL
0mA TO 20mA RANGE MAX INL
0mA TO 24mA RANGE MAX INL
4mA TO 20mA RANGE MIN INL
0mA TO 24mA RANGE MIN INL
0mA TO 20mA RANGE MIN INL
–40 –20 0 20 40 60 80 100
TEMPERATURE (°C)
AV
DD
= 15V
09225-153
Figure 12. Integral Nonlinearity vs. Temperature, External R
SET
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
–40 –20 0 20 40 60 80 100
DNL ERROR (LSB)
TEMPERATURE (°C)
AV
DD
= 15V
ALL RANGES
INTERNAL AND EXTERNAL R
SET
DNL ERROR MAX
DNL ERROR MIN
09225-154
Figure 13. Differential Nonlinearity vs. Temperature