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AD5424 Datasheet(PDF) 12 Page - Analog Devices

Part # AD5424
Description  8-/10-/12-Bit, High Bandwidth Multiplying DACs with Parallel Interface
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5424 Datasheet(HTML) 12 Page - Analog Devices

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AD5424/AD5433/AD5445
Rev. B | Page 12 of 32
0
2
4
6
8
10
12
14
10k
1k
10
100
1
100k
1M
10M
100M
FREQUENCY (Hz)
VDD = 5V
VDD = 2.5V
VDD = 3V
TA = 25°C
LOADING ZS TO FS
Figure 27. Supply Current vs. Update Rate
10k
1k
10
100
1
100k
1M
10M
100M
FREQUENCY (Hz)
–102
–96
–90
–84
–78
–72
–66
–60
–54
–48
–42
–36
–30
–24
–18
–12
–6
0
6
TA = 25°C
LOADING
ZS TO FS
ALL ON
ALL OFF
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
TA = 25°C
VDD = 5V
VREF = ±3.5V
INPUT
CCOMP = 1.8pF
AD8038 AMPLIFIER
AD5445 DAC
Figure 28. Reference Multiplying Bandwidth vs. Frequency and Code
–0.8
–0.6
–0.4
–0.2
0
0.2
10k
1k
10
100
1
100k
1M
10M
100M
FREQUENCY (Hz)
TA = 25°C
VDD = 5V
VREF = ±3.5V
CCOMP = 1.8pF
AD8038 AMPLIFIER
AD5445 DAC
Figure 29. Reference Multiplying Bandwidth—All 1s Loaded
–9
–6
–3
0
3
FREQUENCY (Hz)
100k
10k
1M
10M
100M
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
Figure 30. Reference Multiplying Bandwidth vs. Frequency and
Compensation Capacitor
–0.010
–0.005
0.005
0.025
0.035
0.045
0.015
0
0.020
0.030
0.040
0.010
0
20
40
60
80
100
120
140
160
180
200
TIME (ns)
TA = 25°C
VREF = 0V
AD8038 AMPLIFIER
CCOMP = 1.8pF
0x7FF TO 0x800
0x800 TO 0x7FF
VDD = 5V
VDD = 3V
VDD = 3V
VDD = 5V
Figure 31. Midscale Transition, VREF = 0 V
0
20
40
60
80
100
120
140
160
180
200
TIME (ns)
–1.77
–1.76
–1.75
–1.74
–1.73
–1.72
–1.71
–1.70
–1.69
–1.68
0x7FF TO 0x800
0x800 TO 0x7FF
VDD = 5V
VDD = 3V
VDD = 3V
VDD = 5V
TA = 25°C
VREF = 3.5V
AD8038 AMPLIFIER
CCOMP = 1.8pF
Figure 32. Midscale Transition, VREF = 3.5 V



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