參數(shù)資料
型號: ADA4941-1YRZ
廠商: Analog Devices Inc
文件頁數(shù): 2/25頁
文件大小: 0K
描述: IC DIFF ADC DVR 18BIT 8-SOIC
設(shè)計(jì)資源: Converting a Single-Ended Signal with AD7982 Differential PulSAR ADC (CN0032)
Converting a Single-Ended Signal with AD7984 Differential PulSAR ADC (CN0033)
標(biāo)準(zhǔn)包裝: 98
類型: ADC 驅(qū)動器
應(yīng)用: 數(shù)據(jù)采集
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SO
包裝: 管件
產(chǎn)品目錄頁面: 768 (CN2011-ZH PDF)
ADA4941-1
Rev. C | Page 9 of 24
2
–16
–15
–14
–13
–12
1
100
FREQUENCY (MHz)
N
OR
M
A
LIZE
D
C
LOS
E
D
-LOOP
GA
IN
(
dB
)
1
0
–1
–2
–3
–11
–4
–5
–6
–7
–8
–9
–10
10
G = +4
G = +10
G = +2
G = –2
VO, dm = 0.1V p-p
05704-
010
Figure 11. Small Signal Frequency Response for Various Gains
2
–16
–15
–14
–13
–12
1
100
10
1000
FREQUENCY (MHz)
N
OR
M
A
LIZE
D
C
LOS
E
D
-LOOP
GA
IN
(
dB
)
1
0
–1
–2
–3
–11
–4
–5
–6
–7
–8
–9
–10
CL = 0pF
CL = 20pF
VO, dm = 0.1V p-p
05704-
011
Figure 12. Small Signal Frequency Response for Various Capacitive Loads
2
–16
–15
–14
–13
–12
1
10
1000
FREQUENCY (MHz)
N
OR
M
A
LIZE
D
C
LOS
E
D
-LOOP
GA
IN
(
dB
)
1
0
–1
–2
–3
–11
–4
–5
–6
–7
–8
–9
–10
VREF = 0.05V p-p
VS = +5V
VS = ±5V
VS = +3V
05704-
012
Figure 13. REF Input Small Signal Frequency Response for Various Supplies
2
–16
–15
–14
–13
–12
1
10
1000
FREQUENCY (MHz)
N
OR
M
A
LIZE
D
C
LOS
E
D
-LOOP
GA
IN
(
dB
)
1
0
–1
–2
–3
–11
–4
–5
–6
–7
–8
–9
–10
100
G = +4
G = +10
G = +2
G = –2
VO, dm = 2V p-p
05704-
013
Figure 14. Large Signal Frequency Response for Various Gains
2
–16
–15
–14
–13
–12
0.1
10
1
1000
FREQUENCY (MHz)
NO
RM
AL
IZ
E
D
G
AI
N
(
d
B)
1
0
–1
–2
–3
–11
–4
–5
–6
–7
–8
–9
–10
100
VO, dm = 2V p-p
VO, dm = 6V p-p
VO, dm = 0.1V p-p
05704-
014
Figure 15. Frequency Response for Various Output Amplitudes
–70
–140
0.1
10
1
1000
FREQUENCY (kHz)
D
IS
TOR
TION
(
dB
c
)
100
05704-
015
HD3
HD2
RL = 2k
RL = 1k
RL = 500
VO, dm = 2V p-p
VREF = MIDSUPPLY
–80
–90
–100
–110
–120
–130
Figure 16. Distortion vs. Frequency for Various Loads
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