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OPA3682E

更新时间： 2024-11-22 22:50:51
品牌 Logo 应用领域
BB 缓冲放大器
页数 文件大小 规格书
19页 236K
描述
Triple, Wideband, Fixed Gain BUFFER AMPLIFIER With Disable

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OPA3682E 数据手册

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®
OPA3682  
OPA3682  
O
P
A
3
6
8
2
For most current data sheet and other product  
information, visit www.burr-brown.com  
TM  
Triple, Wideband, Fixed Gain  
BUFFER AMPLIFIER With Disable  
FEATURES  
APPLICATIONS  
● INTERNALLY FIXED GAIN: +2 or ±1  
● HIGH BANDWIDTH (G = +2): 240MHz  
● LOW SUPPLY CURRENT: 6mA/ch  
● LOW DISABLED CURRENT: 320µA/ch  
● HIGH OUTPUT CURRENT: 150mA  
● OUTPUT VOLTAGE SWING: ±4.0V  
● ±5V OR SINGLE +5V OPERATION  
● IMPROVED HIGH FREQUENCY PINOUT  
● RGB VIDEO LINE DRIVER  
● VIDEO MULTIPLEXERS  
● MULTIPLE LINE VIDEO D/As  
● PORTABLE INSTRUMENTS  
● ADC BUFFERS  
● ACTIVE FILTERS  
● WIDEBAND DIFFERENTIAL RECEIVERS  
OPA3682 RELATED PRODUCTS  
DESCRIPTION  
SINGLES  
OPA680  
OPA681  
OPA682  
DUALS  
OPA2680  
OPA2681  
OPA2682  
TRIPLES  
OPA3680  
OPA3681  
OPA3682  
The OPA3682 provides an easy-to-use, broadband fixed  
gain, triple buffer amplifier. Depending on the external  
connections, the internal resistor network may be used to  
provide either a fixed gain of +2 video buffer, or a gain  
of +1 or –1 voltage buffer. Operating on a very low  
6mA/ch supply current, the OPA3682 offers a slew rate  
and output power normally associated with a much  
higher supply current. A new output stage architecture  
delivers high output current with minimal headroom and  
crossover distortion. This gives exceptional single-sup-  
ply operation. Using a single +5V supply, the OPA3682  
can deliver a 1V to 4V output swing with over 100mA  
drive current and 200MHz bandwidth. This combination  
of features makes the OPA3682 an ideal RGB line driver  
or single-supply, triple ADC input driver.  
Voltage Feedback  
Current Feedback  
Fixed Gain  
VR  
75.0Ω  
75.0Ω 75Ω Cable  
1/3  
OPA3682  
RG-59  
400Ω  
400Ω  
400Ω  
400Ω  
VG  
75.0Ω  
75.0Ω 75Ω Cable  
1/3  
OPA3682  
The OPA3682’s low 6mA/ch supply current is precisely  
trimmed at 25°C. This trim, along with low drift over  
temperature, guarantees lower maximum supply current  
than competing products that report only a room tempera-  
ture nominal supply current. System power may be further  
reduced by using the optional disable control pin. Leaving  
this disable pin open, or holding it high, gives normal  
operation. If pulled low, the OPA3682 supply current drops  
to less than 320µA/ch while the output goes into a high  
impedance state. This feature may be used for either power  
savings or for video MUX applications.  
RG-59  
400Ω  
VB  
75.0Ω  
75.0Ω 75Ω Cable  
1/3  
OPA3682  
RG-59  
400Ω  
Video RGB Amplifier  
International Airport Industrial Park  
•
Mailing Address: PO Box 11400, Tucson, AZ 85734  
•
Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706  
• Tel: (520) 746-1111  
Twx: 910-952-1111 Internet: http://www.burr-brown.com/  
•
•
Cable: BBRCORP Telex: 066-6491  
•
•
FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132  
•
©1998 Burr-Brown Corporation  
PDS-1496B  
Printed in U.S.A. June, 1999  
1234567...19

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