I DD – A 1800 1600 0 1k 10k 10M 100k 1M 800 600 400 200 1" />
參數(shù)資料
型號(hào): AD7394ARZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 11/12頁(yè)
文件大小: 0K
描述: IC DAC 12BIT SERIAL 3V 14SOIC
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
產(chǎn)品變化通告: Product Discontinuance 27/Oct/2011
標(biāo)準(zhǔn)包裝: 56
設(shè)置時(shí)間: 60µs
位數(shù): 12
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 2
電壓電源: 單電源
功率耗散(最大): 1mW
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 14-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 14-SOICN
包裝: 管件
輸出數(shù)目和類(lèi)型: 2 電壓,單極;2 電壓,雙極
采樣率(每秒): 17k
AD7394/AD7395
–8–
REV. 0
CLOCK FREQUENCY – Hz
I DD
A
1800
1600
0
1k
10k
10M
100k
1M
800
600
400
200
1400
1200
1000
A: IDD = 2.7V, CODE = 555H
B: IDD = 2.7V, CODE = 3FFH
C: VDD = 5.5V, CODE = 155H
D: VDD = 5.5V, CODE = 3FFH
A
D
C
B
AD7394
Figure 13. Supply Current vs. Clock
Frequency
VOUT – LSB
CURRENT
SOURCING
mA
10
3
0
10
9
0
8
7
6
5
4
3
2
1
9
4
2
1
6
5
8
7
VDD = 5V
VDD = 3V
VREF = 2.5V
CODE = 800H
Figure 16. AD7394 IOUT Source Cur-
rent vs.
V
OUT
HOURS OF OPERATION – 150 C
NOMINAL
CHANGE
IN
V
OUT
mV
1.4
0
100
600
200
300
400
500
1.2
1
0.8
0.4
0.2
0.6
CODE = 000H
CODE = FFFH
AD7394
Figure 19. Long-Term Drift Acceler-
ated by Burn-In
FREQUENCY – Hz
PSRR
dB
80
70
0
1
10
10k
100
1k
40
30
20
10
60
50
VDD = 5.0V, 5%
VDD = 3.0V, 5%
TA = +25 C
Figure 14. AD7394 Power Supply
Rejection vs. Frequency
TIME – 2 s/DIV
V
OUT
Volts
1.262
1.257
1.237
1.252
1.247
1.242
VDD = +5V
VREF = 2.5V
TA = +25 C
CODE = 800H TO 7FFH
5mV/DIV
Figure 17. Midscale Transition
Performance
VOUT – LSB
CURRENT
SINKING
mA
20
6
0
01
10
23
4
5
6
7
8
9
18
8
4
2
12
10
16
14
VDD = 3V
VDD = 5V
VREF = 2.5V
CODE = 800H
Figure 15. AD7394 IOUT Sink Current
vs.
V
OUT
GAIN
dB
0
5
50
100
1k
VDD = 5V
CODE = FFFH
10k
100k
30
35
40
45
10
15
20
25
FREQUENCY – Hz
Figure 18. AD7395 Reference Multi-
plying Bandwidth
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