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ADA4940-1ACPZ-R7 数据表(PDF) 15 Page - Analog Devices

部件名 ADA4940-1ACPZ-R7
功能描述  Ultralow Power, Low Distortion, Fully Differential ADC Drivers
PDF  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADA4940-1ACPZ-R7 数据表(HTML) 15 Page - Analog Devices

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Data Sheet
ADA4940-1/ADA4940-2
Rev. E | Page 15 of 30
–20
–130
0.01
0.1
1
10
FREQUENCY (MHz)
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
VOUT, dm = 2V p-p
LFCSP: RL = 1kΩ
LFCSP: RL = 200Ω
SOIC: RL = 1kΩ
SOIC: RL = 200Ω
Figure 31. Spurious-Free Dynamic Range vs. Frequency at
RL = 200 Ω and RL = 1 kΩ
–20
–150
–2.5
2.5
VOCM (V)
–140
–130
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
VOUT, dm = 2V p-p
HD2 AT 1MHz
HD2 AT 100kHz
HD3 AT 1MHz
HD3 AT 100kHz
Figure 32. Harmonic Distortion vs. VOCM for 100 kHz and 1 MHz,
±2.5 V Supplies (LFCSP)
–20
–130
0.01
0.1
1
10
FREQUENCY (MHz)
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
HD3 AT VOUT, dm = 8V p-p
HD2 AT VOUT, dm = 8V p-p
HD2 AT VOUT, dm = 4V p-p
HD2 AT VOUT, dm = 2V p-p
HD3 AT VOUT, dm = 2V p-p
HD3 AT VOUT, dm = 4V p-p
Figure 33. Harmonic Distortion vs. Frequency for Various VOUT, dm (LFCSP)
–140
–130
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
0
1
2
3
4
5
6
7
8
9
10
VOUT, dm (V p-p)
VS = ±1.5V HD3
VS = +3V, 0V HD3
VS = +3V, 0V HD2
VS = ±3.5V HD3
VS = ±2.5V HD3
VS = ±3.5V HD2
VS = ±1.5V HD2
f = 1MHz
VS = ±2.5V HD2
Figure 34. Harmonic Distortion vs. VOUT, dm for Various Supplies, f = 1 MHz
(LFCSP)
–20
–140
0
3.0
2.5
VOCM (V)
–130
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
0.5
1.0
1.5
2.0
+VS = +3V, –VS = 0V
VOUT, dm = 2V p-p
HD2 AT 1MHz
HD3 AT 1MHz
HD3 AT 100kHz
HD2 AT 100kHz
Figure 35. Harmonic Distortion vs. VOCM for 100 kHz and 1 MHz, 3 V Supply
(LFCSP)
–20
–140
0.01
0.1
1
10
FREQUENCY (MHz)
–120
–130
–110
–100
–90
–80
–70
–60
–50
–40
–30
VOUT, dm = 2V p-p
HD3, RF = RG = 499Ω
HD2, RF = RG = 499Ω
HD3, RF = RG = 1kΩ
HD2, RF = RG = 1kΩ
Figure 36. Harmonic Distortion vs. Frequency for Various RF and RG (LFCSP)



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