LF351N National Semiconductor, LF351N Datasheet

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LF351N

Manufacturer Part Number
LF351N
Description
IC OP AMP JFET SINGLE 8-DIP
Manufacturer
National Semiconductor
Series
BI-FET II™r
Datasheet

Specifications of LF351N

Amplifier Type
J-FET
Number Of Circuits
1
Slew Rate
13 V/µs
Gain Bandwidth Product
4MHz
Current - Input Bias
50pA
Voltage - Input Offset
5000µV
Current - Supply
1.8mA
Voltage - Supply, Single/dual (±)
±5 V ~ 15 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Current - Output / Channel
-
-3db Bandwidth
-
Other names
*LF351N
LF351

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C 1995 National Semiconductor Corporation
LF351 Wide Bandwidth JFET Input Operational Amplifier
General Description
The LF351 is a low cost high speed JFET input operational
amplifier with an internally trimmed input offset voltage
(BI-FET II
current 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
currents The LF351 is pin compatible with the standard
LM741 and uses the same offset voltage adjustment circuit-
ry This feature allows designers to immediately upgrade the
overall performance of existing LM741 designs
The LF351 may be used in applications such as high speed
integrators fast D A converters sample-and-hold circuits
and many other circuits requiring low input offset voltage
low input bias current high input impedance high slew rate
and wide bandwidth The device has low noise and offset
voltage drift but for applications where these requirements
are critical the LF356 is recommended If maximum supply
Typical Connection
Connection Diagrams
TM
technology) The device requires a low supply
TL H 5648
See NS Package Number M08A or N08E
Order Number LF351M or LF351N
TL H 5648 – 11
Dual-In-Line Package
current is important however the LF351 is the better
choice
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Simplified Schematic
Internally trimmed offset voltage
Low input bias current
Low input noise voltage
Low input noise current
Wide gain bandwidth
High slew rate
Low supply current
High input impedance
Low total harmonic distortion A
R
Low 1 f noise corner
Fast settling time to 0 01%
L
e
10k V
O
e
20 Vp-p BW
TL H 5648 – 13
e
20 Hz– 20 kHz
V
e
10
RRD-B30M125 Printed in U S A
December 1995
0 01 pA Hz
TL H 5648– 12
25 nV Hz
k
13 V
1 8 mA
10 mV
4 MHz
10
0 02%
50 pA
50 Hz
2 s
12
s

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LF351N Summary of contents

Page 1

... Low supply current Y High input impedance Y Low total harmonic distortion 10k Low 1 f noise corner Y Fast settling time to 0 01% Y Simplified Schematic TL H 5648 – 11 Dual-In-Line Package TL H 5648 – 13 Order Number LF351M or LF351N December 1995 MHz 02 Hz– 20 kHz 5648– ...

Page 2

... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Power Dissipation (Notes 1 and 6) Operating Temperature Range T j(MAX) Differential Input Voltage Input Voltage Range (Note 2) Output Short Circuit Duration ...

Page 3

AC Electrical Characteristics Symbol Parameter SR Slew Rate GBW Gain Bandwidth Product e Equivalent Input Noise Voltage n i Equivalent Input Noise Current n Note 1 For operating at elevated temperature the device must be derated based on the thermal ...

Page 4

Typical Performance Characteristics Input Bias Current Positive Common-Mode Input Voltage Limit Negative Current Limit Gain Bandwidth Input Bias Current Supply Current Negative Common-Mode Input Voltage Limit Positive Current Limit Voltage Swing Output Voltage Swing Bode Plot Slew Rate 4 TL ...

Page 5

Typical Performance Characteristics Distortion vs Frequency Common-Mode Rejection Ratio Open Loop Voltage Gain (V V) (Continued) Undistorted Output Open Loop Frequency Voltage Swing Response Power Supply Equivalent Input Rejection Ratio Noise Voltage Output Impedance Inverter Settling Time ...

Page 6

Pulse Response Small Signal Inverting Large Signal Inverting Application Hints The LF351 amp with an internally trimmed input offset voltage and JFET input devices (BI-FET II JFETs have large reverse breakdown voltages from gate to source and ...

Page 7

Application Hints (Continued) common-mode range again puts the input stage and thus the amplifier in a normal operating mode Exceeding the positive common-mode limit on a single input will not change the phase of the output however if both inputs ...

Page 8

Typical Applications Supply Current Indicator Limiter V switches high when OUT S Ultra-Low (or High) Duty Cycle Pulse Generator R1C n OUTPUT HIGH ...

Page 9

Physical Dimensions inches (millimeters) SO Package (M) Order Number LF351M NS Package Number M08A 9 ...

Page 10

... National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Molded Dual-In-Line Package (N) Order Number LF351N NS Package Number N08E 2 A critical component is any component of a life ...

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