Datasheet

AD7280A
Rev. 0 | Page 13 of 48
–40 –20 0 20 40 60 80 100
TOTAL UNADJUSTED ERROR (mV)
TEMPERATURE (°C)
09435-216
–4.5
–3.0
–1.5
0
1.5
3.0
4.5
6.0
7.5
V
DD
= 8V
V
DD
= 10V
V
DD
= 16.8V
V
DD
= 22.5V
V
DD
= 29.9V
0
5
4
3
2
1
024681
VOLTAGE (V)
TIME (ms)
0
PD
V
REG
V
REF
09435-117
Figure 16. Total Unadjusted Error for Auxiliary Channels (Absolute Value)
vs. Temperature for Different Supply Voltages
Figure 19. Power-Up Time, 10 μF Capacitor on the V
REF
and V
REG
Pins
0
5
4
3
2
1
024681
VOLTAGE (V)
TIME (ms)
0
PD
V
REG
V
REF
09435-115
0
5
4
3
2
1
024681
VOLTAGE (V)
TIME (ms)
0
PD
V
REG
V
REF
09435-118
Figure 17. Power-Up Time, 1 μF Capacitor on the V
REF
and V
REG
Pins Figure 20. Power-Down Time, 10 μF Capacitor on the V
REF
and V
REG
Pins
3.2
5.2
4.8
4.4
4.0
3.6
08700600500400300200100
CBx OUTPUT VOLTAGE (V)
LOAD CURRENT (nA)
0
5
4
3
2
1
024681
VOLTAGE (V)
TIME (ms)
0
PD
V
REG
V
REF
09435-116
00
09435-119
Figure 18. Power-Down Time, 1 μF Capacitor on the V
REF
and V
REG
Pins Figure 21. CBx Output Voltage vs. Load Current