LM837
Low Noise Quad Operational Amplifier
General Description
The LM837 is a quad operational amplifier designed for low
noise, high speed and wide bandwidth performance. It has a
new type of output stage which can drive a 600Ωload, mak-
ing it ideal for almost all digital audio, graphic equalizer,
preamplifiers, and professional audio applications. Its high
performance characteristics also make it suitable for instru-
mentation applications where low noise is the key consider-
ation.
The LM837 is internally compensated for unity gain opera-
tion. It is pin compatible with most other standard quad op
amps and can therefore be used to upgrade existing sys-
tems with little or no change.
Features
nHigh slew rate 10 V/µs (typ); 8 V/µs (min)
nWide gain bandwidth product 25 MHz (typ); 15 MHz
(min)
nPower bandwidth 200 kHz (typ)
nHigh output current ±40 mA
nExcellent output drive performance >600Ω
nLow input noise voltage 4.5 nV/
nLow total harmonic distortion 0.0015%
nLow offset voltage 0.3 mV
Schematic and Connection Diagrams
DS009047-1
Dual-In-Line Package
DS009047-2
Top View
Order Number LM837M,
LM837MX or LM837N
See NS Package Number
M14A or N14A
August 2000
LM837 Low Noise Quad Operational Amplifier
© 2000 National Semiconductor Corporation DS009047 www.national.com
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage, V
CC
/V
EE
±18V
Differential Input Voltage, V
ID
(Note 2) ±30V
Common Mode Input Voltage, V
IC
(Note 2) ±15V
Power Dissipation, P
D
(Note 3) 1.2W (N)
830 mW (M)
Operating Temperature Range, T
OPR
−40˚C to +85˚C
Storage Temperature Range, T
STG
−60˚C to +150˚C
Soldering Information
Dual-In-Line Package
Soldering (10 seconds) 260˚C
Small Outline Package
Vapor Phase (60 seconds) 215˚C
Infrared (15 seconds) 220˚C
ESD rating to be determined.
See AN-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
DC Electrical Characteristics
T
A
= 25˚C, V
S
=±15V
Symbol Parameter Condition Min Typ Max Units
V
OS
Input Offset Voltage R
S
=50Ω0.3 5 mV
I
OS
Input Offset Current 10 200 nA
I
B
Input Bias Current 500 1000 nA
A
V
Large Signal Voltage Gain R
L
=2kΩ,V
OUT
=±10V 90 110 dB
V
OM
Output Voltage Swing R
L
=2kΩ±
12 ±13.5 V
R
L
= 600Ω±10 ±12.5 V
V
CM
Common Mode Input Voltage ±12 ±14.0 V
CMRR Common Mode Rejection Ratio V
IN
=±12V 80 100 dB
PSRR Power Supply Rejection Ratio V
S
=15∼5, −15 ∼−5 80 100 dB
I
S
Power Supply Current R
L
=∞, Four Amps 10 15 mA
AC Electrical Characteristics
T
A
= 25˚C, V
S
=±15V
Symbol Parameter Condition Min Typ Max Units
SR Slew Rate R
L
= 600Ω8 10 V/µs
GBW Gain Bandwidth Product f = 100 kHz, R
L
= 600Ω15 25 MHz
Design Electrical Characteristics
T
A
= 25˚C, V
S
=±15V (Note 4)
Symbol Parameter Condition Min Typ Max Units
PBW Power Bandwidth V
O
=25V
P-P
,R
L
= 600Ω, THD <1% 200 kHz
e
n1
Equivalent Input Noise Voltage JIS A, R
S
= 100Ω0.5 µV
e
n2
Equivalent Input Noise Voltage f = 1 kHz 4.5 nV/
i
n
Equivalent Input Noise Current f = 1 kHz 0.7 pA/
THD Total Harmonic Distortion A
V
=1,V
OUT
= 3 Vrms,
f=20∼20 kHz, R
L
= 600Ω0.0015 %
f
U
Zero Cross Frequency Open Loop 12 MHz
φ
m
Phase Margin Open Loop 45 deg
Input-Referred Crosstalk f = 20 ∼20 kHz −120 dB
∆V
OS
/∆T Average TC of Input Offset Voltage 2 µV/˚C
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristics state DC andAC electrical specifications under particular test conditions which guar-
antee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is
given, however, the typical value is a good indication of device performance.
Note 2: Unless otherwise specified the absolute maximum input voltage is equal to the power supply voltage.
LM837
www.national.com 2
Design Electrical Characteristics (Continued)
Note 3: For operation at ambient temperatures above 25˚C, the device must be derated based on a 150˚C maximum junction temperature and a thermal resistance,
junction to ambient, as follows: LM837N, 90˚C/W; LM837M, 150˚C/W.
Note 4: The following parameters are not tested or guaranteed.
Detailed Schematic
Typical Performance Characteristics
DS009047-3
Maximum Power Dissipation vs
Ambient Temperature
DS009047-10
Normalized Input Bias Current
vs Supply Voltage
DS009047-11
Normalized Input Bias Current
vs Ambient Temperature
DS009047-12
LM837
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Typical Performance Characteristics (Continued)
Supply Current vs
Supply Voltage
DS009047-13
Supply Current vs
Ambient Temperature
DS009047-14
Positive Current Limit
DS009047-15
Negative Current Limit
DS009047-16
Maximum Output Voltage
vs Supply Voltage
DS009047-17
Maximum Output Voltage
vs Supply Voltage
DS009047-18
Maximum Output Voltage
vs Ambient Temperature
DS009047-19
Maximum Output Voltage
vs Ambient Temperature
DS009047-20
Power Bandwidth
DS009047-21
LM837
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Typical Performance Characteristics (Continued)
Normalized Slew Rate &
Gain Bandwidth vs
Supply Voltage (f = 100 kHz)
DS009047-22
Normalized Slew Rate &
Gain Bandwidth (f = 100 kHz)
vs Ambient Temperature
DS009047-23
Voltage Gain vs
Supply Voltage
DS009047-24
Voltage Gain vs
Ambient Temperature
DS009047-25
Power Supply Rejection
vs Frequency
DS009047-26
CMRR vs Frequency
DS009047-27
Open Loop Gain &
Phase vs Frequency
DS009047-28
Total Harmonic Distortion
vs Frequency
DS009047-29
Equivalent Input Noise
Voltage vs Frequency
DS009047-30
LM837
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Typical Performance Characteristics (Continued)
Equivalent Input Noise
Current vs Frequency
DS009047-31
Small Signal, Non-Inverting
T
A
= 25˚C, A
V
=1,R
L
= 600Ω,V
S
=±
15V
DS009047-6
Current Limit
T
A
= 25˚C, V
S
=±15V, R
L
= 100Ω,A
V
=1
DS009047-7
Large Signal Non-Inverting
T
A
= 25˚C, R
L
= 600Ω,V
S
=±
15V
DS009047-8
Large Signal Inverting
T
A
= 25˚C, R
L
= 600Ω,V
S
=±
15V
DS009047-9
LM837
www.national.com 6
Physical Dimensions inches (millimeters) unless otherwise noted
Molded Package (SO)
Order Number LM837M or LM837MX
NS Package Number M14A
Lit. #107255
Molded Dual-In-Line Package
Order Number LM837N
NS Package Number N14A
LM837
www.national.com7
Notes
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 AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
National Semiconductor
Corporation
Americas
Tel: 1-800-272-9959
Fax: 1-800-737-7018
Email: support@nsc.com
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Response Group
Tel: 65-2544466
Fax: 65-2504466
Email: ap.support@nsc.com
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Japan Ltd.
Tel: 81-3-5639-7560
Email: nsj.crc@jksmtp.nsc.com
Fax: 81-3-5639-7507
www.national.com
LM837 Low Noise Quad Operational Amplifier
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.
National P/N LM837 - Low Noise Quad Operational Amplifier
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Low Noise Quad Operational Amplifier
Generic P/N 837
General
Description Features Datasheet Package
& Models Samples
& Pricing Design
Tools
Parametric Table Parametric Table
Channels (Channels) 4
Input Output Type Not Rail to Rail
Bandwidth, typ (MHz) 25
Slew Rate, typ (Volts/usec) 10
Supply Current per Channel, typ (mA) 2.50
Minimum Supply Voltage (Volt) 10
Maximum Supply Voltage (Volt) 36
Offset Voltage, Max (mV) 5
Input Bias Current, Temp Max (nA) 1050
Output Current, typ (mA) 40
Voltage Noise, typ (nV/Hz) 4.50
Shut down No
Special Features -
Datasheet
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Kbytes Date View Online Download Receive via
Email
LM837 Low Noise Quad Operational Amplifier 400
Kbytes
29-
Aug-
00 View Online Download Receive via
Email
LM837 Low Noise Quad Operational Amplifier
(JAPANESE)289
Kbytes
View Online
Download
Receive via
Email
If you have trouble printing or viewing PDF file(s), see Printing Problems.
Package Availability, Models, Samples & Pricing
Part
Number Package Status Models Samples &
Electronic
Orders
Budgetary
Pricing Std
Pack
Size
Package
Marking
Type Pins MSL SPICE IBIS Qty $US each
LM837M SOIC
NARROW 14 MSL Full
production N/A N/A
Buy Now
1K+ $0.6000 rail
of
55
[logo]¢U¢Z¢2¢T
LM837M
LM837MX SOIC
NARROW 14 MSL Full
production N/A N/A
Buy Now
1K+ $0.6000 reel
of
2500
[logo]¢U¢Z¢2¢T
LM837M
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM837.html (1 of 3) [09-Aug-2002 5:08:00 PM]
National P/N LM837 - Low Noise Quad Operational Amplifier
LM837N MDIP 14 MSL Full
production N/A N/A
24 Hour
Samples
Buy Now
1K+ $0.6000 rail
of
25
[logo]¢U¢Z¢3¢T
LM837N
LM837 MDC Die Full
production N/A N/A
Samples
tray
of
N/A -
LM837 MWC Wafer Full
production N/A N/A
wafer
jar
of
N/A
-
General Description
The LM837 is a quad operational amplifier designed for low noise, high speed and wide bandwidth
performance. It has a new type of output stage which can drive a 600Ohm load, making it ideal for almost all
digital audio, graphic equalizer, preamplifiers, and professional audio applications. Its high performance
characteristics also make it suitable for instrumentation applications where low noise is the key
consideration.
The LM837 is internally compensated for unity gain operation. It is pin compatible with most other standard
quad op amps and can therefore be used to upgrade existing systems with little or no change.
Features
High slew rate 10 V/µs (typ); 8 V/µs (min)
Wide gain bandwidth product 25 MHz (typ); 15 MHz (min)
Power bandwidth 200 kHz (typ)
High output current ±40 mA
Excellent output drive performance >600Ohm
Low input noise voltage 4.5 nV/
Low total harmonic distortion 0.0015%
Low offset voltage 0.3 mV
Design Tools
Title Size in Kbytes Date View Online Download Receive via Email
Amplifiers Selection Guide
software for Windows 7 Kbytes 12-Jun-2002 View
If you have trouble printing or viewing PDF file(s), see Printing Problems.
[Information as of 5-Aug-2002]
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