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AD8131ARZ-REEL

更新时间： 2024-09-21 04:30:55
品牌 Logo 应用领域
亚德诺 - ADI 驱动器运算放大器放大器电路光电二极管
页数 文件大小 规格书
20页 392K
描述
Low Cost, High Speed Differential Driver

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AD8131ARZ-REEL 数据手册

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Low Cost, High Speed  
Differential Driver  
AD8131  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
High speed  
400 MHz, −3 dB full power bandwidth  
2000 V/μs slew rate  
Fixed gain of 2 with no external components  
Internal common-mode feedback to improve gain and phase  
balance: −60 dB @ 10 MHz  
–D  
1
2
3
4
8
7
6
5
+D  
IN  
IN  
750Ω  
750Ω  
V
NC  
OCM  
V+  
V–  
1.5kΩ  
1.5kΩ  
+OUT  
–OUT  
AD8131  
Separate input to set the common-mode output voltage  
Low distortion: 68 dB SFDR @ 5 MHz 200 Ω load  
Power supply range +2.7 V to 5 V  
NC = NO CONNECT  
Figure 1.  
APPLICATIONS  
Video line driver  
Digital line driver  
Low power differential ADC driver  
Differential in/out level shifting  
Single-ended input to differential output driver  
GENERAL DESCRIPTION  
–20  
–30  
–40  
–50  
The AD8131 is a differential or single-ended input to  
differential output driver requiring no external components for  
a fixed gain of 2. The AD8131 is a major advancement over op  
amps for driving signals over long lines or for driving  
differential input ADCs. The AD8131 has a unique internal  
feedback feature that provides output gain and phase matching  
that are balanced to −60 dB at 10 MHz, reducing radiated EMI  
and suppressing harmonics. Manufactured on the Analog  
Devices, Inc. next generation XFCB bipolar process, the  
AD8131 has a −3 dB bandwidth of 400 MHz and delivers a  
differential signal with very low harmonic distortion.  
ΔV  
ΔV  
= 2V p-p  
OUT, dm  
OUT, cm  
/ΔV  
OUT, dm  
V
= +5V  
S
–60  
–70  
–80  
V
= ±5V  
S
The AD8131 is a differential driver for the transmission of  
high-speed signals over low-cost twisted pair or coax cables.  
The AD8131 can be used for either analog or digital video  
signals or for other high-speed data transmission. The AD8131  
driver is capable of driving either Cat3 or Cat5 twisted pair or  
coax with minimal line attenuation. The AD8131 has  
considerable cost and performance improvements over discrete  
line driver solutions.  
1
10  
100  
1000  
FREQUENCY (MHz)  
Figure 2. Output Balance Error vs. Frequency  
The AD8131’s differential output also helps balance the input  
for differential ADCs, optimizing the distortion performance of  
the ADCs. The common-mode level of the differential output is  
adjustable by a voltage on the VOCM pin, easily level-shifting the  
input signals for driving single-supply ADCs with dual supply  
signals. Fast overload recovery preserves sampling accuracy.  
The AD8131 can replace transformers in a variety of applications,  
preserving low frequency and dc information. The AD8131 does  
not have the susceptibility to magnetic interference and hysteresis  
of transformers. It is smaller, easier to work with, and has the high  
reliability associated with ICs.  
The AD8131 is available in both SOIC and MSOP packages for  
operation over −40°C to +125°C.  
Rev. B  
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 that may result from its use.  
Specifications subject to change without notice. No license is granted by implication  
or otherwise under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2005 Analog Devices, Inc. All rights reserved.  
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AD8131ARZ-REEL 替代型号

型号 品牌 替代类型 描述 数据表
AD8131ARZ-REEL7 ADI

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 Low Cost, High Speed Differential Driver
AD8131ARZ ADI

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