LM349N National Semiconductor, LM349N Datasheet

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LM349N

Manufacturer Part Number
LM349N
Description
IC OP AMP QUAD 741 HS 14DIP
Manufacturer
National Semiconductor
Datasheet

Specifications of LM349N

Amplifier Type
General Purpose
Number Of Circuits
4
Slew Rate
2 V/µs
Gain Bandwidth Product
4MHz
Current - Input Bias
30nA
Voltage - Input Offset
1000µV
Current - Supply
2.4mA
Current - Output / Channel
25mA
Voltage - Supply, Single/dual (±)
10 V ~ 36 V, ±5 V ~ 18 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
14-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
-3db Bandwidth
-
Other names
*LM349N
LM349

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C 1995 National Semiconductor Corporation
LM148 LM149 Series Quad 741 Op Amp
LM148 LM248 LM348 Quad 741 Op Amps
LM149 LM349 Wide Band Decompensated (A
General Description
The LM148 series is a true quad 741 It consists of four
independent high gain internally compensated low power
operational amplifiers which have been designed to provide
functional characteristics identical to those of the familiar
741 operational amplifier In addition the total supply current
for all four amplifiers is comparable to the supply current of
a single 741 type op amp Other features include input off-
set currents and input bias current which are much less than
those of a standard 741 Also excellent isolation between
amplifiers has been achieved by independently biasing each
amplifier and using layout techniques which minimize ther-
mal coupling The LM149 series has the same features as
the LM148 plus a gain bandwidth product of 4 MHz at a gain
of 5 or greater
The LM148 can be used anywhere multiple 741 or 1558
type amplifiers are being used and in applications where
amplifier matching or high packing density is required
Schematic Diagram
1 pF in the LM149
TL H 7786
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
LM148 (unity gain)
LM149 (A
741 op amp operating characteristics
Low supply current drain
Class AB output stage no crossover distortion
Pin compatible with the LM124
Low input offset voltage
Low input offset current
Low input bias current
Gain bandwidth product
High degree of isolation between amplifiers
Overload protection for inputs and outputs
V t
V (MIN)
5)
e
5)
RRD-B30M115 Printed in U S A
0 6 mA Amplifier
TL H 7786– 1
February 1995
1 0 MHz
120 dB
4 MHz
30 nA
1 mV
4 nA

LM349N Summary of contents

Page 1

... LM148 plus a gain bandwidth product of 4 MHz at a gain greater The LM148 can be used anywhere multiple 741 or 1558 type amplifiers are being used and in applications where amplifier matching or high packing density is required Schematic Diagram the LM149 C 1995 National Semiconductor Corporation TL H 7786 (MIN) Features 741 op amp operating characteristics ...

Page 2

... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications (Note 4) Supply Voltage Differential Input Voltage Output Short Circuit Duration (Note 1) Power Dissipation ( and d Thermal Resistance ( ) (Note 2) jA Molded DIP (N) P ...

Page 3

Electrical Characteristics Parameter Conditions Large Signal Voltage Gain V 15V OUT Output Voltage Swing V 15V Input Voltage Range V 15V ...

Page 4

Typical Performance Characteristics Supply Current Positive Current Limit Common-Mode Rejection Ratio Bode Plot LM149 Input Bias Current Voltage Swing Negative Current Limit Output Impedance Open Loop Frequency Response Bode Plot LM148 Large Signal Pulse Large Signal Pulse Response (LM148) Response ...

Page 5

Typical Performance Characteristics Small Signal Pulse Response (LM148) Gain Bandwidth Inverting Large Signal Pulse Response (LM148) (Continued) Small Signal Pulse Undistorted Output Response (LM149) Voltage Swing Inverting Large Signal Pulse Slew Rate Response (LM149) Input Noise Voltage and Positive Common-Mode ...

Page 6

Typical Applications LM148 One Decade Low Distortion Sinewave Generator 1 R4R5 R1C1 kHz THD 0 03 MAX R1 100k pot C1 0 0047 ...

Page 7

Typical Applications LM148 Low Drift Peak Detector with Bias Current Compensation Adjust R for minimum drift D3 low leakage diode D1 added to improve speed V S Tune Q through R0 4 For predictable results ...

Page 8

Typical Applications LM148 Use general equations and tune each section separately Q 0 541 Q 1 306 e e 1stSECTION 2ndSECTION The response should have 0 dB peaking R8 R1C1 ...

Page 9

Typical Applications LM148 A 4th Order 1 kHz Elliptic Filter (4 Poles 4 Zeros kHz f 2 kHz f 0 543 841 ...

Page 10

Typical Applications LM149 Minimum Gain to Insure LM149 Stability OUT CL( OL( Power BW ...

Page 11

Typical Applications LM149 Active Tone Control with Full Output Swing (No Slew Limiting at 20 kHz) V 15V OUT(MAX) RMS f 20 kHz THD MAX Duplicate the above circuit ...

Page 12

Typical Simulation 12 ...

Page 13

... Connection Diagram Order Number LM148J LM148J 883 LM149J LM149J 883 LM248J LM348J LM348M LM348N or LM349N See NS Package Number J14A M14A or N14A LM148J is available per JM38510 11001 Physical Dimensions inches (millimeters) Order Number LM148J LM148J 883 LM149J LM149J 883 LM248J or LM348J Dual-In-Line Package ...

Page 14

... Physical Dimensions inches (millimeters) (Continued) Order Number LM348N or LM349N LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or ...

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