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OPA2682

更新时间： 2024-11-29 04:35:47
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BB 缓冲放大器
页数 文件大小 规格书
19页 183K
描述
Dual, Wideband, Fixed Gain BUFFER AMPLIFIER With Disable

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OPA2682 数据手册

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®
OPA2682  
OPA2682  
OPA2682  
For most current data sheet and other  
product information, visit www.burr-brown.com  
TM  
Dual, 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  
● BROADBAND VIDEO LINE DRIVERS  
● VIDEO MULTIPLEXERS  
● MULTIPLE LINE VIDEO DA  
● PORTABLE INSTRUMENTS  
● ADC BUFFERS  
● ACTIVE FILTERS  
The OPA2682’s low 6mA/ch supply current is precisely  
trimmed at 25°C. This trim, along with low drift over tempera-  
ture, guarantees lower maximum supply current than competing  
products that report only a room temperature 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  
OPA2682 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.  
DESCRIPTION  
The OPA2682 provides an easy to use, broadband fixed  
gain, dual buffer amplifier. Depending on the external con-  
nections, the internal resistor network may be used to pro-  
vide 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 OPA2682 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 a minimal headroom and crossover distortion. This  
gives exceptional single supply operation. Using a single  
+5V supply, the OPA2682 can deliver a 1V to 4V output  
swing with over 100mA drive current and 200MHz band-  
width. This combination of features makes the OPA2682 an  
ideal RGB line driver or single-supply ADC input driver.  
OPA2682 RELATED PRODUCTS  
SINGLES  
OPA680  
OPA681  
OPA682  
DUALS  
OPA2680  
OPA2681  
OPA2682  
TRIPLES  
OPA3680  
OPA3681  
OPA3682  
Voltage Feedback  
Current Feedback  
Fixed Gain  
V1  
249Ω  
249Ω  
1/2  
OPA2682  
400Ω  
400Ω  
400Ω  
400Ω  
VOUT = 2 • (V1 – V2)  
OPA680  
High-Speed Instrumentation  
Differential Amplifier  
499Ω  
499Ω  
1/2  
OPA2682  
V2  
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-1477B  
Printed in U.S.A. October, 1999  
1234567...19

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