參數(shù)資料
型號(hào): AD7911AUJ-R2
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: 2-Channel, 2.35 V to 5.25 V 250 kSPS, 10-/12-Bit ADCs
中文描述: 2-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8
封裝: MO-193BA, TSOT-23
文件頁數(shù): 14/28頁
文件大小: 312K
代理商: AD7911AUJ-R2
AD7911/AD7921
Rev. 0 | Page 14 of 28
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
0
4096
3584
3072
2560
2048
CODE
1536
1024
512
0
I
V
DD
= 2.7V
F
= 250kSPS
TEMPERATURE = 25
°
C
Figure 14. AD7921 INL Performance
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
0
4096
3584
3072
2560
2048
CODE
1536
1024
512
0
D
V
DD
= 2.7V
F
= 250kSPS
TEMPERATURE = 25
°
C
Figure 15. AD7921 DNL Performance
–95
–85
–75
–65
–55
–35
–25
–45
10
100
1k
0
FREQUENCY (kHz)
T
R
IN
= 1k
R
IN
= 500
R
IN
= 100
R
IN
= 50
R
IN
= 10
R
IN
= 0
V
DD
= 3.6V
Figure 16. THD vs. Analog Input Frequency for Various Source Impedances
–74
–76
–78
–80
–82
–84
–86
–88
10
100
1k
0
FREQUENCY (kHz)
T
V
DD
= 2.35V
V
DD
= 3.6V
V
DD
= 5.25V
V
DD
= 4.75V
V
DD
= 2.7V
Figure 17. THD vs. Analog Input Frequency for Various Supply Voltages
180
160
0
2.0
20
40
60
80
100
120
140
5.5
5.0
4.5
4.0
3.5
3.0
2.5
0
SUPPLY VOLTAGE (V)
S
TEMPERATURE = +25
°
C
TEMPERATURE = +85
°
C
TEMPERATURE = –40
°
C
Figure 18. Shutdown Current vs. Supply Voltage
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