Datasheet

AD5689R/AD5687R Data Sheet
Rev. 0 | Page 14 of 28
Figure 26. Zero-Code Error and Offset Error vs. Supply Voltage
Figure 27. Total Unadjusted Error (TUE) vs. Temperature
Figure 28. TUE vs. Supply, Gain = 1
Figure 29. TUE vs. Code
Figure 30. I
DD
Histogram with External Reference, V
DD
= 5 V
Figure 31. I
DD
Histogram with Internal Reference, V
REF
= 2.5 V, Gain = 2
1.5
–1.5
–1.0
–0.5
0
0.5
1.0
2.7 5.24.74.23.73.2
ERROR (mV)
SUPPLY VOLTAGE (V)
ZERO-CODE ERROR
OFFSET ERROR
V
DD
= 5V
T
A
= 25°C
INTERNAL REFERENCE = 2.5V
11256-027
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
–40 –20 0 20 40 60 80 100 120
TOTAL UNADJUSTED ERROR (% of FSR)
TEMPERATURE (°C)
V
DD
= 5V
T
A
= 25°C
INTERNAL REFERENCE = 2.5V
11256-028
0.10
0.08
0.06
0.04
0.02
0
–0.02
–0.04
–0.06
–0.08
–0.10
2.7 5.24.74.23.73.2
TOTAL UNADJUSTED ERROR (% of FSR)
SUPPLY VOLTAGE (V)
V
DD
= 5V
T
A
= 25°C
INTERNAL REFERENCE = 2.5V
11256-029
0
–0.01
–0.02
–0.03
–0.04
–0.05
–0.06
–0.07
–0.08
–0.09
–0.10
0 10000 20000 30000 40000 50000 60000 65535
TOTAL UNADJUSTED ERROR (% of FSR)
CODE
V
DD
= 5V
T
A
= 25°C
INTERNAL REFERENCE = 2.5V
11256-030
25
20
15
10
5
0
540 560 580 600 620 640
HITS
I
DD
FULL SCALE
(V)
V
DD
= 5V
T
A
= 25°C
EXTERNAL
REFERENCE = 2.5V
11256-031
30
25
20
15
10
5
0
1000 1020 1040 1060 1080 1100 1120 1140
HITS
V
DD
= 5V
T
A
= 25°C
INTERNAL
REFERENCE = 2.5V
11256-032
I
DD
FULL SCALE (V)