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Part: LM837MWC
Category:
Description:
Company: National Semiconductor Corporation
Datasheet: Download LM837MWC datasheet File size : 136 kB
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LM837 Low Noise Quad Operational Amplifier
August 2000
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 600 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
n High slew rate 10 V/µs (typ); 8 V/µs (min) n Wide gain bandwidth product 25 MHz (typ); 15 MHz (min) n Power bandwidth 200 kHz (typ) ± 40 mA n High output current > 600 n Excellent output drive performance n Low input noise voltage 4.5 nV/ n Low total harmonic distortion 0.0015% n Low offset voltage 0.3 mV
Schematic and Connection Diagrams
Dual-In-Line Package
DS009047-2
Top View Order Number LM837M, LM837MX or LM837N See NS Package Number M14A or N14A
DS009047-1
© 2000 National Semiconductor Corporation
DS009047
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LM837
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, VCC/VEE Differential Input Voltage, VID (Note 2) Common Mode Input Voltage, VIC (Note 2) Power Dissipation, PD (Note 3) Operating Temperature Range, TOPR
± 18V ± 30V ± 15V 1.2W (N) 830 mW (M) -40°C to +85°C
-60°C to +150°C Storage Temperature Range, TSTG 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
TA = 25°C, VS = ± 15V Symbol VOS IOS IB AV VOM VCM CMRR PSRR IS Parameter Input Offset Voltage Input Offset Current Input Bias Current Large Signal Voltage Gain Output Voltage Swing Common Mode Input Voltage Common Mode Rejection Ratio Power Supply Rejection Ratio Power Supply Current VIN = ± 12V VS = 15 5, -15 -5 RL = , Four Amps RL = 2 k, VOUT = ± 10V RL = 2 k RL = 600 90 Condition RS = 50 Min Typ 0.3 10 500 110 Max 5 200 1000 Units mV nA nA dB V V V dB dB 15 mA
± 12 ± 10 ± 12
80 80
± 13.5 ± 12.5 ± 14.0
100 100 10
AC Electrical Characteristics
TA = 25°C, VS = ± 15V Symbol SR GBW Parameter Slew Rate Gain Bandwidth Product Condition RL = 600 f = 100 kHz, RL = 600 Min 8 15 Typ 10 25 Max Units V/µs MHz
Design Electrical Characteristics
TA = 25°C, VS = ± 15V (Note 4) Symbol PBW en1 en2 Parameter Power Bandwidth Equivalent Input Noise Voltage Equivalent Input Noise Voltage Condition VO = 25 VP-P, RL = 600, THD < 1% JIS A, RS = 100 f = 1 kHz 4.5 in Equivalent Input Noise Current f = 1 kHz 0.7 THD fU m VOS/T Total Harmonic Distortion Zero Cross Frequency Phase Margin Input-Referred Crosstalk Average TC of Input Offset Voltage AV = 1, VOUT = 3 Vrms, f = 20 20 kHz, RL = 600 Open Loop Open Loop f = 20 20 kHz pA/ Min Typ 200 0.5 Max Units kHz µV nV/
0.0015 12 45 -120 2
% MHz deg dB 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 functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee 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.
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LM837
Design Electrical Characteristics
Note 4: The following parameters are not tested or guaranteed.
(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.
Detailed Schematic
DS009047-3
Typical Performance Characteristics
Maximum Power Dissipation vs Ambient Temperature Normalized Input Bias Current vs Supply Voltage Normalized Input Bias Current vs Ambient Temperature
DS009047-10
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