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參數資料
| 型號： | AD8009-EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 1 GHz, 5,500 V/us Low Distortion Amplifier |
| 中文描述： | 1千兆赫，5,500 V的/我們的低失真放大器 |
| 文件頁數： | 10/12頁 |
| 文件大小： | 229K |
| 代理商： | AD8009-EB |
AD8009
–10–
REV. B
10 F
+
0.1 F
AD8009
75
301
5V
301
2
7
3
6
+10 F
0.1 F
4
–
5V
AD8009
75
301
301
2
3
6
AD8009
75
301
301
2
3
6
75
75
75
75 COAX
PRIMARY MONITOR
ADDITIONAL MONITOR
75 COAX
75
75
75
75
75
75
RED
GREEN
BLUE
RED
GREEN
BLUE
I
OUT
R
ADV7160
ADV7162
I
OUT
G
I
OUT
B
Figure 38. Driving an Additional High Resolution Monitor Using Three AD8009s
RGB Monitor Driver
High resolution computer monitors require very high full power
bandwidth signals to maximize their display resolution. The
RGB signals that drive these monitors are generally provided by
a current-out RAMDAC that can directly drive a 75
doubly
terminated line.
There are times when the same output wants to be delivered to
additional monitors. The termination provided internally by
each monitor prohibits the ability to simply connect a second
monitor in parallel with the first. Additional buffering must be
provided.
Figure 38 shows a connection diagram for two high resolution
monitors being driven by an ADV7160 or ADV7162, a 220 MHz
(Mega-pixel per second) triple RAMDAC. This pixel rate
requires a driver whose full power bandwidth is at least half the
pixel rate or 110 MHz. This is to provide good resolution for a
worst case signal that swings between zero scale and full scale
on adjacent pixels.
The primary monitor is connected in the conventional fashion
with a 75
termination to ground at each end of the 75
cable. Sometimes this configuration is called “doubly termi-
nated” and is used when the driver is a high output impedance
current source.
For the additional monitor, each of the RGB signals close to the
RAMDAC output is applied to a high input impedance, noninvert-
ing input of an AD8009 that is configured for a gain of +2. The
outputs each drive a series 75
resistor, cable and termination
resistor in the monitor that divides the output signal by two, thus
providing an overall unity gain. This scheme is referred to as
“back termination” and is used when the driver is a low output
impedance voltage source. Back termination requires that the
voltage of the signal be double the value that the monitor sees.
Double termination requires that the output current be double the
value that flows in the monitor termination.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8009JRT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1 GHz 5-500 V/micros Low Distortion Amplifier(234.18 k) |
| AD8009JRT-EBZ | 功能描述:BOARD EVAL FOR AD8009 RoHS:是 類別:編程器，開發系統 >> 評估板 - 運算放大器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| AD8009JRT-R2 | 制造商:Analog Devices 功能描述:OP Amp Single Current Fdbk |
| AD8009JRT-REEL | 制造商:Analog Devices 功能描述:OP Amp Single Current Fdbk ±6V/12V 5-Pin SOT-23 T/R |
| AD8009JRT-REEL7 | 功能描述:IC OPAMP CF LDIST 175MA SOT23-5 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數:1 輸出類型:滿擺幅 轉換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SO 包裝:帶卷 (TR) |
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