Datasheet
Data Sheet AD7294
Rev. H | Page 17 of 48
0.8
–0.8
–0.6
–0.4
–0.2
0.2
0.6
0
0.4
0 2018161412108642
(%)
TIME (µs)
64pF
1nF
10nF
05747-085
Figure 24. Zoomed in Settling for a ¼ to ¾ Output Voltage Step
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0 403530252015105
V
OUT
(V)
SINK CURRENT (mA)
DAC A
DAC B
DAC C
DAC D
05747-090
AV
DD
= DV
DD
= 5V
OFFSET IN = FLOATING
DAC OUT V = 15V
V
DRIVE
= 5V, INTERNAL REF
Figure 25. DAC Sinking Current at Input Code = x000, (V
OUT
= 0 V)
0
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
–1.0
0 403530252015105
V
OUT
– (V+)
SOURCE CURRENT (mA)
DAC A
DAC B
DAC C
DAC D
05747-091
AV
DD
= DV
DD
= 5V
OFFSET IN = FLOATING
DAC OUT V = 15V
V
DRIVE
= 5V, INTERNAL REF
Figure 26. DAC Sourcing Current at Input Code = x000, (V
OUT
= 0 V)
100
80
60
40
20
0
–20
–40
–60
–80
–100
–50 5020 4030100–10–20–30–40
CHANGE IN OUTPUT VOLTAGE (mV)
LOAD CURRENT (mA)
DAC A
DAC B
DAC C
DAC D
05747-092
AV
DD
= DV
DD
= 5V
OFFSET IN = FLOATING
DAC OUT V = 15V
V
DRIVE
= 5V, INTERNAL REF
Figure 27. DAC Output Voltage vs. Load Current, Input Code = x800
55
50
45
40
35
30
25
20
–5 0 5 10 15 20
TEMPERATURE READING (°C)
TIME (Seconds)
05747-064
Figure 28. Response of the AD7294 to Thermal Shock Using 2N3906
(2N3906 Placed in a Stirred Oil Bath)
55
50
45
40
35
30
25
–5 0 60555045403530252015105
TEMPERATURE (°C)
TIME (Seconds)
EXTERNAL
INTERNAL
AD7294 IN SOCKET ON
200mm × 100mm 2-LAYER FR-4 PCB
05747-066
Figure 29. Response to Thermal Shock from Room Temperature into 50°C
Stirred Oil (Both the AD7294 and the 2N3906 are Placed in a Stirred Oil Bath)