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LF451

更新时间: 2024-11-04 22:47:11
品牌 Logo 应用领域
美国国家半导体 - NSC 运算放大器
页数 文件大小 规格书
8页 209K
描述
LF451 Wide-Bandwidth JFET-Input Operational Amplifier

LF451 数据手册

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December 1995  
LF451 Wide-Bandwidth  
JFET-Input Operational Amplifier  
General Description  
Features  
Y
Y
Y
Y
Y
Y
Y
Y
Internally trimmed offset voltage  
Low input bias current  
Low input noise current  
Wide gain bandwidth  
High slew rate  
5.0 mV (max)  
50 pA (typ)  
The LF451 is a low-cost high-speed JFET-input operational  
amplifier with an internally trimmed input offset voltage (BI-  
FET IITM technology). The device requires a low supply cur-  
rent and yet maintains a large gain bandwidth product and a  
fast slew rate. In addition, well matched high voltage JFET  
input devices provide very low input bias and offset cur-  
rents. The LF451 is pin compatible with the standard  
LM741, allowing designers to upgrade the overall perform-  
ance of existing designs.  
0.01 pA/ Hz (typ)  
0
4 MHz (typ)  
13 V/ms (typ)  
3.4 mA (max)  
Low supply current  
12  
10 X (typ)  
High input impedance  
k
e
Low total harmonic distortion A  
10,  
0.02% (typ)  
V
e
e
e
, f  
p–p  
R
10k, V  
20 V  
20 Hz20 kHz  
50 Hz (typ)  
L
O
The LF451 may be used in such applications as high-speed  
integrators, fast D/A converters, sample-and-hold circuits  
and many other circuits requiring low input bias current, high  
input impedance, high slew rate and wide bandwidth.  
Y
Y
Low 1/f noise corner  
Fast settling time to 0.01%  
2 ms (typ)  
Connection Diagram  
Typical Connection  
S.O. Package  
TL/H/9660–2  
Top View  
Order Number LF451CM  
See NS Package Number M08A  
TL/H/9660–1  
Simplified Schematic  
TL/H/9660–3  
BI-FETTM is a trademark of National Semiconductor Corporation.  
C
1995 National Semiconductor Corporation  
TL/H/9660  
RRD-B30M125/Printed in U. S. A.  

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