AD5426 Analog Devices, AD5426 Datasheet - Page 12

• Manufacturer Part Number: AD5426
• Description: High Bandwidth CMOS 8-Bit Serial Interface Multiplying D/A Converter
• Manufacturer: Analog Devices

Specifications of AD5426

• Resolution (bits): 8bit
• Dac Update Rate: 2.47MSPS
• Dac Settling Time: 50ns
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Ser,SPI

AD5426/AD5432/AD5443
–100
–120
–20
–40
–60
–80
–60
–65
–70
–75
–80
–85
–90
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
20
0
0
2.5
1
1
T
T
V
AMPLIFIER = AD8038
T
V
V
A
A
A
DD
DD
REF
= 25°C
= 25°C
= 25°C
Figure 32. Threshold Voltages vs. Supply Voltage
Figure 30. Power Supply Rejection vs. Frequency
= 3V
= 3V
= 3.5V p-p
10
Figure 31. THD and Noise vs. Frequency
3.0
10
100
FULL SCALE
100
3.5
FREQUENCY (Hz)
FREQUENCY (Hz)
V
VOLTAGE (V)
1k
IH
ZERO SCALE
4.0
1k
10k
V
IL
10k
4.5
100k
100k
5.0
1M
10M
1M
5.5
Rev. C | Page 12 of 28
100
–100
80
60
40
20
80
60
40
20
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
0
0
0
Figure 35. Wideband SFDR f
0
T
V
AD8038 AMP
AD5426
T
V
AD8038 AMP
AD5443
Figure 33. Wideband SFDR vs. f
Figure 34. Wideband SFDR vs. f
A
REF
A
REF
= 25°C
= 25°C
= 3.5V
50
= 3.5V
10
10
100
150
MCLK = 500kHz
20
20
FREQUENCY (Hz)
200
f
f
OUT
OUT
OUT
(kHz)
(kHz)
250
= 50 kHz, Update = 1 MHz
MCLK = 200kHz
MCLK = 200kHz
OUT
OUT
30
30
MCLK = 500kHz
300
Frequency (AD5443)
Frequency (AD5426)
350
T
V
AD8038 AMPLIFIER
AD5443
A
REF
= 25°C
40
40
= 3.5V
400
450
50
50
500