Datasheet

AD5666
Rev. D | Page 14 of 28
CURRENT (mA)
ERROR VOLTAGE (V)
0.50
0.40
–0.50
–0.40
–0.30
–0.20
–0.10
0
0.10
0.20
0.30
–10 –8 –6 –4 –2 0 2 4 861
05298-019
0
V
DD
=3V
V
REFOUT
= 1.25V
V
DD
=5V
V
REFOUT
=2.5V
DACLOADEDWITH
ZERO-SCALE
SINKING CURRENT
DAC LOADED WITH
FULL-SCALE
SOURCING CURRENT
Figure 18. Headroom at Rails vs. Source and Sink
CURRENT (mA)
V
OUT
(V)
6.00
5.00
4.00
3.00
2.00
1.00
–1.00
0
–30 –20 –10 0 10 20 30
05298-012
V
DD
=5V
V
REFOUT
=2.5V
T
A
=25 ° C
ZERO SCALE
FULL SCALE
MIDSCALE
1/4 SCALE
3/4 SCALE
Figure 19. Source and Sink Current Capability with V
DD
= 5 V
CURRENT (mA)
V
OUT
(V)
4.00
–1.00
0
1.00
2.00
3.00
–30 –20 –10 0 10 20 30
05298-013
V
DD
=3V
V
REFOUT
= 1.25V
T
A
=25 ° C
ZERO SCALE
FULL SCALE
MIDSCALE
1/4 SCALE
3/4 SCALE
Figure 20. Source and Sink Current Capability with V
DD
= 3 V
CODE
I
DD
(mA)
1.0
0
05298-014
512 10512 20512 30512 40512 50512 60512
T
A
=25°C
V
DD
=V
REF
=3V
V
DD
=V
REF
=5V
0.1
0.5
0.6
0.8
0.9
0.7
0.2
0.3
0.4
Figure 21. Supply Current vs. Code
TEMPERATURE (°C)
I
DD
(mA)
1.0
0
0.1
0.5
0.6
0.8
0.9
0.7
0.2
0.3
0.4
–40 –20 0 20 40 60 80 100
05298-015
V
DD
=V
REFIN
=3.6V
V
DD
=V
REFIN
=5.5V
Figure 22. Supply Current vs. Temperature
V
DD
(V)
I
DD
(
m
A)
1.0
0
2.7
05298-016
3.2 4.23.7 5.24.7
T
A
=25°C
0.1
0.5
0.6
0.8
0.9
0.7
0.2
0.3
0.4
Figure 23. Supply Current vs. Supply Voltage