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AD810 датащи(PDF) 18 Page - Analog Devices

номер детали AD810
подробное описание детали  Low Power Video Op Amp with Disable
PDF  22 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD810 датащи(HTML) 18 Page - Analog Devices

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AD810
Data Sheet
Rev. B | Page 18 of 22
OPERATION AS A VIDEO LINE DRIVER
The AD810 is designed to offer outstanding performance at
closed-loop gains of 1 or greater. At a gain of 2, the low
differential gain and phase errors and wide −0.1 dB bandwidth
are nearly independent of supply voltage and load (as shown in
Figure 53 through Figure 55) making the AD810 an excellent
video line driver.
715Ω
75Ω
715Ω
75Ω
AD810
2
3
6
7
4
–VS
+VS 0.1µF
0.1µF
VIN
VOUT
75Ω
75Ω
CABLE
75Ω
CABLE
Figure 52. Video Line Driver Operating at Gain = +2
–4
–2
0
–5
–3
–1
1
1M
10M
1G
100M
0
–45
–90
–135
–180
–225
–270
FREQUENCY (Hz)
GAIN = +2
RF = 715Ω
RL = 150Ω
VS = ±15V
VS = ±5V
VS = ±2.5V
VS = ±15V
VS = ±5V
VS = ±2.5V
PHASE
GAIN
Figure 53. Closed-Loop Gain and Phase Shift vs. Frequency,
G = +2, RL = 150 Ω, RF = 715 Ω
0.01
0.03
0.05
0
0.02
0.04
0.06
0.07
0.08
0.09
56789
10
11
12
13
14
15
0.18
0.10
0.20
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
SUPPLY VOLTAGE (±V)
GAIN = +2
RF = 715Ω
RL = 150Ω
f = 3.58MHz
100 IRE
MODULATED RAMP
GAIN
PHASE
Figure 54. Differential Gain and Differential Phase vs. Supply Voltage
0.1
0
–0.1
0.1
0
–0.1
100k
1M
10M
100M
FREQUENCY (Hz)
RL = 150Ω
RL = 1kΩ
±15V
±5V
±2.5V
±15V
±5V
±2.5V
Figure 55. Normalized Gain vs. Frequency for Various Supply Voltages,
Gain = +2, RF = 715 Ω
20
45
60
80
100
110
10
30
50
70
90
0
4
8
12
16
20
2
6
10
14
18
SUPPLY VOLTAGE (±V)
GAIN = +2
RL = 150Ω
VOUT = 250mV p-p
RF = 500Ω
RF = 750Ω
RF = 1kΩ
PEAKING ≤ 1dB
PEAKING ≤ 0.1dB
Figure 56. −3 dB Bandwidth vs. Supply Voltage, G = +2, RL = 150 Ω



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