- 您現在的位置：買賣IC網 > PDF目錄373937 > AD8130ARM-REEL3 (Analog Devices, Inc.) Low-Cost 270 MHz Differential Receiver Amplifiers PDF資料下載
參數資料
| 型號： | AD8130ARM-REEL3 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low-Cost 270 MHz Differential Receiver Amplifiers |
| 中文描述： | 低成本270 MHz的差分接收器放大器 |
| 文件頁數： | 23/28頁 |
| 文件大小： | 510K |
| 代理商： | AD8130ARM-REEL3 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁當前第23頁第24頁第25頁第26頁第27頁第28頁
REV. 0
AD8129/AD8130
–23–
V
OUT
=
V
IN
(1+ R
F
/R
G
) +V
OFFSET
0.1 F
10 F
–
V
+V
0.1 F
10 F
V
IN
V
OFFSET
–
V
S
PD
+V
S
+
+
R
F
R
G
AD8129/
AD8130
Figure 12. In this circuit, V
OFFSET
appears at the output
with unity gain. This circuit works well if the V
OFFSET
Source Impedance is low.
A way around this is to apply the offset voltage to a voltage
divider whose attenuation factor matches the gain of the ampli-
fier, and then apply this voltage to the high-impedance REF
input. This circuit will first divide the desired offset voltage by
the gain, and the amplifier will multiply it back up to unity. (See
Figure 13.)
V
OUT
=
V
IN
(1+R
F
/R
G
) + V
OFFSET
0.1 F
10 F
–
V
+V
0.1 F
10 F
V
IN
–
V
S
PD
+V
S
+
+
R
F
R
G
R
G
V
OFFSET
R
F
AD8129/
AD8130
Figure 13. Adding an attenuator at the offset input causes
it to appear at the output with unity gain.
Resistorless Gain-of-Two
The voltage applied to the REF input (Pin 4) can also be a high
bandwidth signal. If a unity-gain AD8130 has both +IN and
REF driven with the same signal, there will be unity gain from
V
IN
and unity gain from V
REF
. Thus, the circuit will have a gain
of two, and requires no resistors. (See Figure 14.)
V
OUT
0.1 F
10 F
–
V
+V
0.1 F
10 F
V
IN
–
V
S
PD
+V
S
+
+
AD8130
Figure 14. Gain-of-Two Connections with No Resistors
Summer
A general summing circuit can be made by the above technique.
A unity-gain configured AD8130 has one signal applied to +IN,
while the other signal is applied to REF. The output will be the
sum of the two input signals. (See Figure 15.)
V
OUT
= V1 + V2
V1
V2
0.1 F
10 F
–
V
+V
0.1 F
10 F
–
V
S
PD
+V
S
+
+
AD8130
Figure 15. A Summing Circuit that is Noninverting with
High Input Impedance
This circuit offers several advantages over a conventional op
amp inverting summing circuit. First, the inputs are both high-
impedance and the circuit is noninverting. It would require
significant additional circuitry to make an op amp summing
circuit that has high input impedance and is noninverting.
Another advantage is that the AD8130 circuit still preserves the
full bandwidth of the part. In a conventional summing circuit,
the noise gain is increased for every additional input, so the
bandwidth response decreases accordingly. By this technique,
four signals can be summed by applying them to two AD8130s,
and then summing the two outputs by a third AD8130.
Cable-Tap Amplifier
It is often desirable to have a video signal drive several different
pieces of equipment. However, the cable should only be termi-
nated once at its end point, so it is not appropriate to have a
termination at each device. A “loop-through” connection allows
a device to tap the video signal while not disturbing it by any
excessive loading.
Such a connection, also referred to as a cable-tap amplifier, can
be simply made with an AD8130. (See Figure 16.) The circuit is
configured with unity gain, and if no output offset is desired,
the REF pin is grounded. The negative differential input is
connected directly to the shield of the cable (or an associated
connector) at the point at which it wants to be “tapped.”
75
75
VIDEO
IN
V
OUT
0.1 F
10 F
–
V
+V
0.1 F
10 F
–
V
S
PD
+V
S
+
+
AD8130
Figure 16. The AD8130 can tap the video signal at any
point along the cable without loading the signal.
相關PDF資料 |
PDF描述 |
|---|---|
| AD8130ARM-REEL72 | Low-Cost 270 MHz Differential Receiver Amplifiers |
| AD8129 | Low-Cost 270 MHz Differential Receiver Amplifiers |
| AD8129-EVAL | Low-Cost 270 MHz Differential Receiver Amplifiers |
| AD8129AR-REEL1 | Low-Cost 270 MHz Differential Receiver Amplifiers |
| AD8129AR-REEL72 | Low-Cost 270 MHz Differential Receiver Amplifiers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8130ARM-REEL7 | 制造商:Analog Devices 功能描述:SP Amp DIFF Receiver Amp Single 制造商:Analog Devices 功能描述:SP Amp DIFF Receiver Amp Single ±12.6V/25.2V 8-Pin MSOP T/R |
| AD8130ARM-REEL72 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low-Cost 270 MHz Differential Receiver Amplifiers |
| AD8130ARMZ | 功能描述:IC AMP DIFF LN LDIST 40MA 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產品培訓模塊:Differential Circuit Design Techniques for Communication Applications 標準包裝:1 系列:- 放大器類型:RF/IF 差分 電路數:1 輸出類型:差分 轉換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應商設備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT |
| AD8130ARMZ | 制造商:Analog Devices 功能描述:Operational Amplifier (Op-Amp) IC |
| AD8130ARMZ-REEL | 功能描述:IC AMP DIFF LN LDIST 40MA 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數:2 輸出類型:滿擺幅 轉換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
發布緊急采購，3分鐘左右您將得到回復。