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AD5424 Datasheet(PDF) 11 Page - Analog Devices

No. de pieza AD5424
Descripción Electrónicos  8-/10-/12-Bit, High Bandwidth, Multiplying DACs with Parallel Interface
PDF  24 Pages
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD5424 Datasheet(HTML) 11 Page - Analog Devices

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REV. 0
AD5424/AD5433/AD5445
–11–
0
2
4
6
8
10
12
14
110
100
1k
10k 100k 1M
10M 100M
FREQUENCY (Hz)
TA = 25 C
LOADING ZS TO FS
VDD = 5V
VDD = 3V
VDD = 2.5V
TPC 19. Supply Current vs.
Update Rate
–9
–6
–3
0
3
10k
100k
1M
10M
100M
FREQUENCY (Hz)
TA = 25 C
VDD = 5V
AD5445
VREF = 2V, AD8038 CC 1.47pF
VREF = 2V, AD8038 CC 1pF
VREF = 0.15V, AD8038 CC 1pF
VREF = 0.15V, AD8038 CC 1.47pF
VREF = 3.51V, AD8038 CC 1.8pF
TPC 22. Reference Multiplying
Bandwidth vs. Frequency and
Compensation Capacitor
–120
–100
–80
–60
0
20
110
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
–40
–20
TA = 25 C
VDD = 3V
AMP = AD8038
FULL SCALE
ZERO SCALE
TPC 25. Power Supply
Rejection vs. Frequency
–102
–66
–54
–42
–30
–18
–6
6
110
100
1k
10k 100k 1M
10M 100M
FREQUENCY (Hz)
TA = 25 C
LOADING
ZS TO FS
0
–60
–48
–36
–24
–12
–84
–72
–78
–90
–96
TA = 25 C
VDD = 5V
VREF =
3.5V
INPUT
CCOMP = 1.8pF
AD8038 AMPLIFIER
AD5445 DAC
ALL ON
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
ALL OFF
TPC 20. Reference Multiplying
Bandwidth vs. Frequency and
Code
–0.010
–0.005
0
0.005
0.010
0.015
0.020
0.025
0.030
0.035
0.040
0.045
7FF TO 800H
VDD = 5V
VDD = 3V
VDD = 3V
800 TO 7FFH
0
200
TIME (ns)
TA = 25 C
VREF = 0V
AD8038 AMPLIFIER
CCOMP = 1.8pF
20
40
60
80 100 120 140 160 180
VDD = 5V
TPC 23. Midscale Transition,
VREF = 0 V
–90
–85
–80
–65
–60
110
100
1k
10k
100k
1M
FREQUENCY (Hz)
–75
–70
TA = 25 C
VDD = 3V
VREF = 3.5 V p-p
TPC 26. THD and Noise vs.
Frequency
–0.8
–0.6
–0.4
–0.2
0
0.2
110
100
1k
10k 100k 1M
100M
FREQUENCY (Hz)
TA = 25 C
VDD = 5V
VREF =
3.5V
CCOMP = 1.8pF
AD8038 AMPLIFIER
AD5445 DAC
10M
TPC 21. Reference Multiplying
Bandwidth—All Ones Loaded
–1.77
–1.76
–1.75
–1.74
–1.73
–1.72
–1.71
–1.70
–1.69
–1.68
7FF TO 800H
VDD = 5V
VDD = 3V
VDD = 3V
800 TO 7FFH
0
200
TIME (ns)
TA = 25 C
VREF = 3.5V
AD8038 AMPLIFIER
CCOMP = 1.8pF
20
40
60
80 100 120 140 160 180
VDD = 5V
TPC 24. Midscale Transition,
VREF = 3.5 V
0
20
40
60
80
100
0
200
fOUT (kHz)
TA = 25 C
VREF = 3.5V
AD8038 AMPLIFIER
AD5445
20
40
60
80 100 120 140 160 180
MCLK = 1MHz
MCLK = 0.5MHz
MCLK = 200kHz
TPC 27. Wideband SFDR vs.
fOUT Frequency



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