AD7294 Analog Devices, AD7294 Datasheet - Page 17

• Manufacturer Part Number: AD7294
• Description: 12-Bit Monitor and Control System with Multichannel ADC, DACs, Temperature Sensor, and Current Sense
• Manufacturer: Analog Devices

Specifications of AD7294

• Resolution (bits): 12bit
• # Chan: 9
• Sample Rate: 200kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (Vref) p-p,2 V p-p,Uni (Vref),Uni (Vref) x 2
• Adc Architecture: SAR
• Pkg Type: CSP

Data Sheet
Figure 26. DAC Sourcing Current at Input Code = x000, (V
Figure 25. DAC Sinking Current at Input Code = x000, (V
Figure 24. Zoomed in Settling for a ¼ to ¾ Output Voltage Step
–0.2
–0.4
–0.6
–0.8
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
–1.0
0.8
0.6
0.4
0.2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
0
0
0
0
AV
OFFSET IN = FLOATING
DAC OUT V = 15V
V
DRIVE
DD
2
= DV
5
5
DAC A
DAC B
DAC C
DAC D
= 5V, INTERNAL REF
DD
4
10
10
= 5V
6
SOURCE CURRENT (mA)
SINK CURRENT (mA)
15
15
8
TIME (µs)
10
20
20
AV
OFFSET IN = FLOATING
DAC OUT V = 15V
V
DRIVE
12
DD
25
25
= DV
= 5V, INTERNAL REF
14
DD
30
30
= 5V
16
35
35
DAC A
DAC B
DAC C
DAC D
OUT
18
OUT
64pF
1nF
10nF
= 0 V)
= 0 V)
20
40
40
Rev. H | Page 17 of 48
Stirred Oil (Both the
Figure 29. Response to Thermal Shock from Room Temperature into 50°C
Figure 28. Response of the
Figure 27. DAC Output Voltage vs. Load Current, Input Code = x800
55
50
45
40
35
30
25
20
–100
100
–20
–40
–60
–80
–5
80
60
40
20
55
50
45
40
35
30
25
0
–50
–5
–40
0
DAC A
DAC B
DAC C
DAC D
0
(2N3906 Placed in a Stirred Oil Bath)
AD7294
5
–30
10
–20
EXTERNAL
15
and the 2N3906 are Placed in a Stirred Oil Bath)
TIME (Seconds)
LOAD CURRENT (mA)
5
AD7294
INTERNAL
–10
20
TIME (Seconds)
AD7294 IN SOCKET ON
200mm × 100mm 2-LAYER FR-4 PCB
25
0
to Thermal Shock Using 2N3906
30
10
AV
OFFSET IN = FLOATING
DAC OUT V = 15V
V
DRIVE
10
DD
35
= DV
= 5V, INTERNAL REF
40
20
DD
15
= 5V
45
30
50
40
AD7294
55
20
50
60