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AD8079ARZ PDF预览

AD8079ARZ

更新时间: 2024-02-09 06:45:42
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
12页 288K
描述
Dual 260 MHz Gain = 2.0 & 2.2 Buffer

AD8079ARZ 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP,针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.02
放大器类型:BUFFER最大平均偏置电流 (IIB):10 µA
标称带宽 (3dB):260 MHz最大输入失调电压:20000 µV
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm湿度敏感等级:1
负供电电压上限:-6.3 V标称负供电电压 (Vsup):-5 V
功能数量:2端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.75 mm标称压摆率:800 V/us
子类别:Buffer Amplifier供电电压上限:6.3 V
标称供电电压 (Vsup):5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:3.9 mmBase Number Matches:1

AD8079ARZ 数据手册

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Dual 260 MHz  
Gain = +2.0 & +2.2 Buffer  
a
AD8079  
FUNCTIONAL BLOCK DIAGRAM  
8-Pin Plastic SOIC  
FEATURES  
Factory Set Gain  
AD8079A: Gain = +2.0 (Also +1.0 & –1.0)  
AD8079B: Gain = +2.2 (Also +1 & –1.2)  
Gain of 2.2 Compensates for System Gain Loss  
Minimizes External Components  
Tight Control of Gain and Gain Matching (0.1%)  
Optimum Dual Pinout  
+IN1  
GND  
GND  
+IN2  
1
2
3
4
8
7
6
5
OUT1  
+V  
S
AD8079  
–V  
S
Simplifies PCB Layout  
OUT2  
Low Crosstalk of –70 dB @ 5 MHz  
Excellent Video Specifications (RL = 150 )  
Gain Flatness 0.1 dB to 50 MHz  
cables and transformers. Its low distortion and fast settling are  
ideal for buffering high speed dual or differential A-to-D con-  
verters.  
0.01% Differential Gain Error  
0.02؇ Differential Phase Error  
Low Power of 50 mW/Amplifier (5 mA)  
High Speed and Fast Settling  
260 MHz, –3 dB Bandwidth  
750 V/s Slew Rate (2 V Step), 800 V/s (4 V Step)  
40 ns Settling Time to 0.1% (2 V Step)  
Low Distortion of –65 dBc THD, fC = 5 MHz  
High Output Drive of Over 70 mA  
Drives Up to 8 Back-Terminated 75 Loads (4 Loads/  
Side) While Maintaining Good Differential Gain/  
Phase Performance (0.01%/0.17؇)  
High ESD Tolerance (5 kV)  
The AD8079 features a unique transimpedance linearization  
circuitry. This allows it to drive video loads with excellent differ-  
ential gain and phase performance of 0.01% and 0.02° on only  
50 mW of power per amplifier. It features gain flatness of 0.1 dB  
to 50 MHz. This makes the AD8079 ideal for professional video  
electronics such as cameras and video switchers.  
The AD8079 offers low power of 5 mA/amplifier (VS = ±5 V)  
and can run on a single +12 V power supply while delivering  
over 70 mA of load current. All of this is offered in a small 8-pin  
SOIC package. These features make this amplifier ideal for por-  
table and battery powered applications where size and power are  
critical.  
Available in Small 8-Pin SOIC  
APPLICATIONS  
Differential A-to-D Driver  
Video Line Driver  
Differential Line Driver  
Professional Cameras  
Video Switchers  
The outstanding bandwidth of 260 MHz along with 800 V/µs of  
slew rate make the AD8079 useful in many general purpose high  
speed applications where dual power supplies of ±3 V to ±6 V  
are required.  
The AD8079 is available in the industrial temperature range of  
–40°C to +85°C.  
Special Effects  
RF Receivers  
1
0
PRODUCT DESCRIPTION  
The AD8079 is a dual, low power, high speed buffer designed  
to operate on ±5 V supplies. The AD8079’s pinout offers excel-  
lent input and output isolation compared to the traditional dual  
amplifier pin configuration. With two ac ground pins separating  
both the inputs and outputs, the AD8079 achieves very low  
crosstalk of less than –70 dB at 5 MHz.  
R
V
= 100Ω  
L
SIDE 2  
–1  
–2  
–3  
= 50mV rms  
SIDE 1  
IN  
0.1  
0
–0.1  
–0.2  
–0.3  
–0.4  
–0.5  
–4  
–5  
Additionally, the AD8079 contains gain setting resistors factory  
set at G = +2.0 (A grade) or Gain = +2.2 (B grade) allowing  
circuit configurations with minimal external components. The  
B grade gain of +2.2 compensates for gain loss through a system  
by providing a single-point trim. Using active laser trimming of  
these resistors, the AD8079 guarantees tight control of gain and  
channel-channel gain matching. With its performance and con-  
figuration, the AD8079 is well suited for driving differential  
–6  
–7  
–8  
–9  
SIDE 2  
50Ω  
SIDE 1  
50Ω  
1M  
10M  
100M  
1G  
FREQUENCY – Hz  
Figure 1. Frequency Response and Flatness  
REV. A  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 617/329-4700  
Fax: 617/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1996  

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