參數(shù)資料
型號: ADA4940-2ACPZ-RL
廠商: Analog Devices Inc
文件頁數(shù): 6/33頁
文件大小: 0K
描述: IC DIFF ADC DVR 18BIT LN 24LFCSP
標(biāo)準(zhǔn)包裝: 5,000
放大器類型: 差分
電路數(shù): 2
輸出類型: 差分
轉(zhuǎn)換速率: 95 V/µs
-3db帶寬: 260MHz
電流 - 輸入偏壓: 1.1µA
電壓 - 輸入偏移: 60µV
電流 - 電源: 1.25mA
電流 - 輸出 / 通道: 46mA
電壓 - 電源,單路/雙路(±): 3 V ~ 7 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 24-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 24-LFCSP-VQ(4x4)
包裝: 帶卷 (TR)
Data Sheet
ADA4940-1/ADA4940-2
Rev. C | Page 13 of 32
4
–9
1
10
100
1000
G
AI
N
(
d
B)
FREQUENCY (MHz)
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
CDIFF = 0pF
VOUT = 0.1V p-p
CCOM1 = CCOM2 = 2pF
CCOM1 = CCOM2 = 0.5pF
CCOM1 = CCOM2 = 1pF
CCOM1 = CCOM2 = 0pF
08452-
014
Figure 19. Small Signal Frequency Response for Various Capacitive Loads
(LFCSP)
0.25
–0.25
0.1
1000
1
10
100
NO
RM
AL
IZ
E
D
G
AI
N
(
d
B)
FREQUENCY (MHz)
–0.20
–0.15
–0.10
–0.05
0
0.05
0.10
0.15
0.20
VOUT, dm = 0.1V p-p
G = 2, RL = 200Ω
G = 2, RL = 1kΩ
G = 1, RL = 200Ω
G = 1, RL = 1kΩ
08452-
018
Figure 20. 0.1 dB Flatness Small Signal Frequency Response for
Various Gains and Loads (LFCSP)
3
–9
1
10
100
1000
G
AI
N
(
d
B)
FREQUENCY (MHz)
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
VS = ±1.5V
VS = ±2.5V
08452-
019
VOUT, dm = 0.1V p-p
Figure 21. VOCM Small Signal Frequency Response for Various Supplies
4
–9
1
10
100
1000
G
AI
N
(
d
B)
FREQUENCY (MHz)
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
CCOM1 = CCOM2 = 0pF
CCOM1 = CCOM2 = 0.5pF
CCOM1 = CCOM2 = 1pF
CCOM1 = CCOM2 = 2pF
CDIFF = 0pF
VOUT = 2V p-p
08452-
017
Figure 22. Large Signal Frequency Response for Various Capacitive Loads
0.25
–0.25
0.1
1000
1
10
100
NO
RM
AL
IZ
E
D
G
AI
N
(
d
B)
FREQUENCY (MHz)
–0.20
–0.15
–0.10
–0.05
0
0.05
0.10
0.15
0.20
VOUT, dm = 2V p-p
G = 1, RL = 1kΩ
G = 1, RL = 200Ω
G = 2, RL = 1kΩ
G = 2, RL = 200Ω
08452-
021
Figure 23. 0.1 dB Flatness Large Signal Frequency Response for
Various Gains and Loads
3
–9
1
10
100
1000
G
AI
N
(
d
B)
FREQUENCY (MHz)
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
VS = ±1.5V
VS = ±2.5V
08452-
022
VOUT, dm = 1V p-p
Figure 24. VOCM Large Signal Frequency Response for Various Supplies
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