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CLC5644

更新时间: 2024-11-06 22:50:31
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美国国家半导体 - NSC 运算放大器
页数 文件大小 规格书
4页 92K
描述
Low-Power, Low-Cost, Quad Operational Amplifier

CLC5644 数据手册

 浏览型号CLC5644的Datasheet PDF文件第2页浏览型号CLC5644的Datasheet PDF文件第3页浏览型号CLC5644的Datasheet PDF文件第4页 
June 1999  
N
CLC5644  
Low-Power, Low-Cost, Quad Operational Amplifier  
General Description  
Features  
The CLC5644 is a quad, current feedback operational amplifier  
that is perfect for many cost-sensitive applications that require  
high performance, especially when power dissipation is critical.  
Not only does the CLC5644 offer excellent economy in board  
space, but has an excellent performance vs power tradeoff which  
yields a 170MHz Small Signal Bandwidth while dissipating only  
25mW. Applications requiring significant density of high speed  
devices such as video routers, matrix switches and high-order  
active filters will benefit from the configuration of the CLC5644 and  
the low channel-to-channel crosstalk of 76dB at 1MHz.  
170MHz small signal bandwidth  
1000 V/µs slew rate  
2.5mA / channel supply current  
-72/-79dBc HD2/HD3 (5MHz)  
0.04%, 0.07° differential gain, phase  
70mA output current  
16ns settling to 0.1%  
Applications  
Portable equipment  
Video switchers & routers  
The CLC5644 provides excellent performance for video  
applications. Differential gain and phase of 0.04% and 0.07°  
makes this device well suited for many professional composite  
video systems, but consumer applications will also be able to take  
advantage of these features due to the device’s low cost. The  
CLC5644 offers superior dynamic performance with a small  
signal bandwidth of 170MHz and slew rate of 1000V/µs. These  
attributes are well suited for many component video applications  
such as driving RGB signals down significant lengths of cable.  
These and many other applications can also take advantage of  
the 0.1dB flatness to 25MHz.  
Video line driver  
Active filters  
IF amplifier  
Twisted pair driver/receiver  
Non-Inverting Frequency Response  
Av = +2  
Rf = 1.65k  
Vo = 0.25Vpp  
Combining wide bandwidth with low cost makes the the CLC5644  
an attractive option for active filters. SAW filters are often used  
in IF filters in the 10’s of MHz range, but higher order filters  
designed around a quad operational amplifier may offer an  
economical alternative to the typical SAW approach and offer  
greater freedom in the selection of filter parameters. National  
Semiconductor’s Comlinear Products Group has published a  
wide array of liturature on active filters and a list of these  
publications can be found on the last page of this datasheet.  
Av = +1  
Rf = 6.98kΩ  
Av = +5  
Rf = 499Ω  
Av = +10  
Rf = 249Ω  
1M  
10M  
100M  
Frequency (Hz)  
Typical Configurations  
Non-Inverting Gain  
Inverting Gain  
Pinout  
VCC  
VCC  
DIP & SOIC  
6.8µF  
6.8µF  
+
+
0.1µF  
0.1µF  
Rb  
Rg  
Vin  
+
+
1/4  
1/4  
Vo  
Vo  
CLC5644  
CLC5644  
Rt  
-
-
Rf  
Rf  
Vin  
Rt  
Note: Rb provides DC bias  
for the non-inverting input.  
Select Rt to yield desired  
Rin = Rt || Rg.  
0.1µF  
0.1µF  
Rg  
+
+
R
R
R
V
o
V
f
o
f
6.8µF  
6.8µF  
= A = −  
= A = 1+  
v
v
V
V
R
g
g
in  
in  
VEE  
VEE  
© 1999 National Semiconductor Corporation  
Printed in the U.S.A.  
http://www.national.com  

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