參數(shù)資料
型號(hào)： AD811JRZ-REEL7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 7/21頁(yè)
文件大小： 0K
描述： IC OPAMP VIDEO HP 8SOIC
標(biāo)準(zhǔn)包裝： 1,000
應(yīng)用： 電流反饋
電路數(shù)： 1
-3db帶寬： 140MHz
轉(zhuǎn)換速率： 2500 V/µs
電流 - 電源： 16.5mA
電流 - 輸出 / 通道： 100mA
電壓 - 電源，單路/雙路(±)： ±4.5 V ~ 18 V
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： 帶卷 (TR)
AD811
Data Sheet
Rev. F | Page 14 of 20
OPERATION AS A VIDEO LINE DRIVER
The AD811 has been designed to offer outstanding performance
at closed-loop gains of +1 or greater, while driving multiple
reverse-terminated video loads. The lowest differential gain and
phase errors are obtained when using ±15 V power supplies.
With ±12 V supplies, there is an insignificant increase in these
errors and a slight improvement in gain flatness. Due to power
dissipation considerations, ±12 V supplies are recommended
for optimum video performance. Excellent performance can be
achieved at much lower supplies as well.
The closed-loop gain versus the frequency at different supply
voltages is shown in Figure 42. Figure 43 is an oscilloscope
photograph of an AD811 line driver’s pulse response with
±15 V supplies. The differential gain and phase error versus the
supply are plotted in Figure 44 and Figure 45, respectively.
Another important consideration when driving multiple cables
is the high frequency isolation between the outputs of the
cables. Due to its low output impedance, the AD811 achieves
better than 40 dB of output-to-output isolation at 5 MHz
driving back-terminated 75 cables.
Figure 41. A Video Line Driver Operating at a Gain of +2
Figure 42. Closed-Loop Gain vs. Frequency, Gain = +2
Figure 43. Small Signal Pulse Response, Gain = +2, VS = ±15 V
Figure 44. Differential Gain Error vs. Supply Voltage for
the Video Line Driver of Figure 41
Figure 45. Differential Phase Error vs. Supply Voltage for
the Video Line Driver of Figure 41
VIN
–VS
+VS
0.1
F
0.1
F
AD811
VOUT No. 2
VOUT No. 1
75
CABLE
75
CABLE
75
CABLE
75
75
649
649
75
75
75
+
–
7
6
4
3
2
00866-E-042
–6
–3
0
3
6
9
12
GAIN
(dB)
FREQUENCY (MHz)
1
10
100
00866-E-043
VS = ±15V
RFB = 649
VS = ±5V
RFB = 562
G = +2
RL = 150
RG = RFB
00866-E-044
10
90
100
0%
1V
10ns
VIN
VOUT
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
DIFFERENTIAL
GAIN
(%)
5
6
7
8
9
10
11
12
13
14
15
SUPPLY VOLTAGE (V)
00866-E-045
RF = 649
FC = 3.58MHz
100 IRE
MODULATED RAMP
a. DRIVING A SINGLE, BACK-
TERMINATED, 75
COAX CABLE
b. DRIVING TWO PARALLEL, BACK-
TERMINATED, COAX CABLES
a
b
0
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
DIFFERENTIAL
PHASE
(DEGREES)
5
6
7
8
9
10
11
12
13
14
15
SUPPLY VOLTAGE (V)
00866-E-046
RF = 649
FC = 3.58MHz
100 IRE
MODULATED RAMP
a. DRIVING A SINGLE, BACK-
TERMINATED, 75
COAX CABLE
b. DRIVING TWO PARALLEL, BACK-
TERMINATED, COAX CABLES
a
b
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD811SCHIPS 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance Video Op Amp
AD811SE 制造商:Rochester Electronics LLC 功能描述:- Bulk
AD811SE/883B 功能描述:視頻放大器 OP-AMP HI-SPEED VIDEO RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel 安裝風(fēng)格:
AD811SQ/883B 功能描述:視頻放大器 OP-AMP HIGH SPEED VIDEO RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel 安裝風(fēng)格:
AD812 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual, Current Feedback Low Power Op Amp
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