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LF451CM Datasheet

  • LF451CM

  • LF451 Wide-Bandwidth JFET-Input Operational Amplifier

  • 8頁

  • NSC

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LF451 Wide-Bandwidth JFET-Input Operational Amplifier
December 1995
LF451 Wide-Bandwidth
JFET-Input Operational Amplifier
General Description
The LF451 is a low-cost high-speed JFET-input operational
amplifier with an internally trimmed input offset voltage (BI-
FET II
TM
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
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
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Internally trimmed offset voltage
5 0 mV (max)
Low input bias current
50 pA (typ)
Low input noise current
0 01 pA
0
Hz (typ)
Wide gain bandwidth
4 MHz (typ)
High slew rate
13 V
ms
(typ)
Low supply current
3 4 mA (max)
High input impedance
10
12
X
(typ)
k
0 02% (typ)
Low total harmonic distortion A
V
e
10
R
L
e
10k V
O
e
20 V
p鈥?p
f
e
20 Hz 鈥?20 kHz
Low 1 f noise corner
50 Hz (typ)
Fast settling time to 0 01%
2
ms
(typ)
Connection Diagram
S O Package
Typical Connection
TL H 9660 鈥?2
Top View
Order Number LF451CM
See NS Package Number M08A
TL H 9660 鈥?1
Simplified Schematic
TL H 9660 鈥?3
BI-FET
TM
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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