參數(shù)資料
型號(hào): AD5439
廠商: Analog Devices, Inc.
元件分類: 串行DAC
英文描述: Dual 10-Bit High Bandwidth Multiplying DACs with Serial Interface
中文描述: 雙通道、10位、高帶寬、串行接口乘法DAC
文件頁數(shù): 12/32頁
文件大?。?/td> 860K
代理商: AD5439
AD5429/AD5439/AD5449
Rev. 0 | Page 12 of 32
0
2
4
6
8
10
12
14
I
D
10k
1k
10
100
1
100k
1M
10M
100M
FREQUENCY (Hz)
0
T
= 25°C
LOADING ZS TO FS
V
DD
= 5V
V
DD
= 3V
V
DD
= 2.5V
Figure 18. Supply Current vs. Update Rate
–102
–66
–72
–78
–54
–60
–42
–48
–30
–36
–18
–24
–6
6
0
1
100
1k
FREQUENCY (Hz)
10k
100k
1M
10M
100M
G
T
= 25
°
C
LOADING
ZS TO FS
–12
–84
–90
–96
T
A
= 25
°
C
V
DD
= 5V
V
REF
=
±
3.5V
INPUT
C
= 1.8pF
AD8038 AMPLIFIER
ALL ON
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
ALL OFF
0
10
Figure 19. Reference Multiplying Bandwidth vs. Frequency and Code
–0.8
–0.6
–0.4
–0.2
0
0.2
G
10k
1k
10
100
1
100k
1M
10M
100M
FREQUENCY (Hz)
0
T
A
= 25°C
V
DD
= 5V
V
REF
= ±3.5V
C
= 1.8pF
AD8038 AMPLIFIER
Figure 20. Reference Multiplying Bandwidth–All 1s Loaded
–9
–6
–3
0
3
10k
100k
1M
10M
100M
FREQUENCY (Hz)
T
A
= 25°C
V
DD
= 5V
G
0
V
REF
=
±
2V, AD8038 C
C
1.47pF
V
REF
=
±
2V, AD8038 C
1pF
V
REF
=
±
0.15V, AD8038 C
C
1pF
V
REF
=
±
0.15V, AD8038 C
C
1.47pF
V
REF
=
±
3.51V, AD8038 C
C
1.8pF
Figure 21. 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
O
0
20
40
60
80
100
120
140
160
180
200
TIME (ns)
0
T
A
= 25°C
V
= 0V
AD8038 AMPLIFIER
C
COMP
= 1.8pF
7FF TO 800H
800 TO 7FFH
V
DD
= 5V
V
DD
= 3V
V
DD
= 3V
V
DD
= 5V
Figure 22. Midscale Transition, V
REF
= 0 V
O
0
20
40
60
80
100
120
140
160
180
200
TIME (ns)
0
–1.77
–1.76
–1.75
–1.74
–1.73
–1.72
–1.71
–1.70
–1.69
–1.68
7FF TO 800H
800 TO 7FFH
V
DD
= 5V
V
DD
= 3V
V
DD
= 3V
V
DD
= 5V
T
A
= 25°C
V
= 3.5V
AD8038 AMPLIFIER
C
COMP
= 1.8pF
Figure 23. Midscale Transition, V
REF
= 3.5 V
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