ADA4940-1AR-EBZ データシートの表示（PDF） - Analog Devices
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ADA4940-1AR-EBZ Datasheet PDF : 32 Pages
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ADA4940-1/ADA4940-2
4
CCOM1 = CCOM2 = 2pF
3
2
1
0
–1
CCOM1 = CCOM2 = 1pF
–2
CCOM1 = CCOM2 = 0.5pF
–3
CCOM1 = CCOM2 = 0pF
–4
–5
–6
–7
–8 CDIFF = 0pF
VOUT = 0.1V p-p
–9
1
10
100
FREQUENCY (MHz)
1000
Figure 19. Small Signal Frequency Response for Various Capacitive Loads
(LFCSP)
0.25
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
G = 2, RL = 200Ω
G = 2, RL = 1kΩ
G = 1, RL = 200Ω
–0.20
VOUT, dm = 0.1V p-p
G = 1, RL = 1kΩ
–0.25
0.1
1
10
100
FREQUENCY (MHz)
1000
Figure 20. 0.1 dB Flatness Small Signal Frequency Response for
Various Gains and Loads (LFCSP)
3
2
1
0
–1
VS = ±2.5V
–2
VS = ±1.5V
–3
–4
–5
–6
–7
–8 VOUT, dm = 0.1V p-p
–9
1
10
100
FREQUENCY (MHz)
1000
Figure 21. VOCM Small Signal Frequency Response for Various Supplies
Data Sheet
4
3
CCOM1 = CCOM2 = 0pF
CCOM1 = CCOM2 = 0.5pF
2
CCOM1 = CCOM2 = 1pF
1
CCOM1 = CCOM2 = 2pF
0
–1
–2
–3
–4
–5
–6
–7
–8 CDIFF = 0pF
VOUT = 2V p-p
–9
1
10
100
FREQUENCY (MHz)
1000
Figure 22. Large Signal Frequency Response for Various Capacitive Loads
0.25
0.20
0.15
0.10
0.05
G = 1, RL = 1kΩ
0
–0.05
–0.10
–0.15
G = 2, RL = 200Ω
G = 1, RL = 200Ω
G = 2, RL = 1kΩ
–0.20
VOUT, dm = 2V p-p
–0.25
0.1
1
10
100
FREQUENCY (MHz)
1000
Figure 23. 0.1 dB Flatness Large Signal Frequency Response for
Various Gains and Loads
3
2
1
0
–1
VS = ±2.5V
–2
–3
VS = ±1.5V
–4
–5
–6
–7
–8 VOUT, dm = 1V p-p
–9
1
10
100
FREQUENCY (MHz)
1000
Figure 24. VOCM Large Signal Frequency Response for Various Supplies
Rev. B | Page 12 of 32
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