AD5428 Analog Devices, AD5428 Datasheet - Page 13

• Manufacturer Part Number: AD5428
• Description: Dual 8-Bit, High Bandwidth Multiplying DACs with Parallel Interface
• Manufacturer: Analog Devices

Specifications of AD5428

• Resolution (bits): 8bit
• Dac Update Rate: 21.3MSPS
• Dac Settling Time: 30ns
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Par

Data Sheet
–60
–65
–70
–75
–80
–85
–90
100
–100
–120
80
60
40
20
–20
–40
–60
–80
0
20
1
0
0
1
T
V
V
MCLK = 1MHz
Figure 25. Power Supply Rejection Ratio vs. Frequency
MCLK = 200kHz
A
DD
REF
T
V
AMP = AD8038
= 25°C
A
DD
20
= 3V
= 25°C
= 3.5V p-p
Figure 27. Wideband SFDR vs. f
= 3V
10
10
40
Figure 26. THD + Noise vs. Frequency
60
100
100
FREQUENCY (Hz)
80
FREQUENCY (Hz)
f
MCLK = 0.5MHz
OUT
FULL SCALE
1k
100
1k
(kHz)
120
10k
ZERO SCALE
10k
OUT
140
Frequency
100k
T
V
AMP = AD8038
A
160
REF
100k
= 25°C
= 3.5V
1M
180
200
1M
10M
Rev. C | Page 13 of 32
–100
90
80
70
60
50
40
30
20
10
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
0
0
Figure 29. Wideband SFDR, f
Figure 30. Wideband SFDR, f
0
0
MCLK = 25MHz
100
0.5
Figure 28. Wideband SFDR vs. f
MCLK = 5MHz
200
2
1.0
300
1.5
MCLK = 10MHz
4
400
FREQUENCY (MHz)
FREQUENCY (MHz)
AD5428/AD5440/AD5447
2.0
f
OUT
500
OUT
OUT
(kHz)
2.5
6
= 100 kHz, Clock = 25 MHz
= 500 kHz, Clock = 10 MHz
600
3.0
OUT
700
8
3.5
Frequency
T
V
AMP = AD8038
800
A
T
V
AMP = AD8038
65k CODES
T
V
AMP = AD8038
65k CODES
REF
A
A
DD
DD
4.0
= 25°C

= 25°C
= 25°C
= 3.5V
10
= 5V
= 5V
900 1000
4.5
5.0
12