AD5444 Analog Devices, AD5444 Datasheet - Page 10

• Manufacturer Part Number: AD5444
• Description: 12-Bit High Bandwidth Multiplying DAC with Serial Interface
• Manufacturer: Analog Devices

Specifications of AD5444

• Resolution (bits): 12bit
• Dac Update Rate: 2.7MSPS
• Dac Settling Time: 40ns
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Ser,SPI

AD5444/AD5446
2.5
2.0
1.5
1.0
0.5
0.2
0.1
0.7
0.4
0.6
0.5
0.3
6
5
4
3
2
1
0
0
0
–40
1
0
T
AD5444
LOADING 0101 0101 0101
T
A
Figure 18. Supply Current vs. Logic Input Voltage
A
= 25°C
= 25°C
–20
Figure 19. Supply Current vs. Temperature
Figure 20. Supply Current vs. Update Rate
10
1
0
100
V
DD
TEMPERATURE (°C)
INPUT VOLTAGE (V)
20
FREQUENCY (Hz)
= 3V
2
1k
V
V
DD
DD
40
= 3V
= 5V
V
DD
10k
= 5V
3
60
100k
80
V
ALL 1s
ALL 0s
4
DD
100
1M
= 5V
V
DD
= 3V
120
10M
5
Rev. C | Page 10 of 28
Figure 23. Reference Multiplying Bandwidth vs. Frequency—All 1s Loaded
Figure 22. Reference Multiplying Bandwidth vs. Frequency and Code
–0.2
–0.4
–0.6
–0.8
–1.0
–1.2
–10
–20
–30
–40
–50
–60
–70
–80
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.6
0.4
0.2
10
0
0
0
2.5
10k
10k
T
T
V
V
C
AD8038 AMPLIFIER
A
Figure 21. Threshold Voltage vs. Supply Voltage
ALL ON
A
DD
REF
COMP
= 25°C
= 25°C
DB13
DB12
DB11
DB10
= 5V
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
= ±3.5V
3.0
= 1.8pF
100k
100k
3.5
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
FREQUENCY (Hz)
4.0
1M
1M
V
IH
4.5
V
V
C
AD8038 AMPLIFIER
DD
REF
COMP
10M
10M
= 5V
V
= ±3.5V
IL
= 1.8pF
5.0
T
LOADING
ZS TO FS
A
= 25°C
100M
100M
5.5