Datasheet

AD5689/AD5687 Data Sheet
Rev. 0 | Page 12 of 24
Figure 20. TUE vs. Supply Voltage, Gain = 1
Figure 21. TUE vs. Code
Figure 22. I
DD
Histogram
Figure 23. Headroom/Footroom vs. Load Current
Figure 24. Source and Sink Capability at 5 V
Figure 25. Source and Sink Capability at 3 V
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
11255-020
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
11255-021
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
11255-022
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
0 5 10 15 20 25 30
ΔV
OUT
(V)
LOAD CURRENT (mA)
SOURCING 2.7V
SOURCING 5V
SINKING 2.7V
SINKING 5V
11255-023
7
–2
–1
0
1
2
3
4
5
6
–0.06 –0.04 –0.02 0 0.02 0.04 0.06
V
OUT
(V)
LOAD CURRENT (A)
FULL SCALE
ONE-QUARTER SCALE
MIDSCALE
THREE-QUARTER SCALE
ZERO SCALE
V
DD
= 5V
T
A
= 25°C
GAIN = 2
INTERNAL
REFERENCE = 2.5V
11255-024
11255-025
5
–2
–1
0
1
2
3
4
–0.06 –0.04 –0.02 0 0.02 0.04 0.06
V
OUT
(V)
LOAD CURRENT (A)
V
DD
= 3V
T
A
= 25°C
EXTERNAL REFERENCE = 2.5V
GAIN = 1
FULL SCALE
ONE-QUARTER SCALE
MIDSCALE
THREE-QUARTER SCALE
ZERO SCALE