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| LM837 Low Noise Quad Operational Amplifier May 1999 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/s (typ); 8 V/s (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 or LM837N See NS Package Number M14A or N14A DS009047-1 (c) 1999 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, 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) -40C to +85C Storage Temperature Range, TSTG -60C to +150C Soldering Information Dual-In-Line Package Soldering (10 seconds) 260C Small Outline Package Vapor Phase (60 seconds) 215C Infrared (15 seconds) 220C 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 = 25C, 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 z 5, -15 z -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 = 25C, 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/s MHz Design Electrical Characteristics TA = 25C, 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 z 20 kHz, RL = 600 Open Loop Open Loop f = 20 z 20 kHz pA/ Min Typ 200 0.5 Max Units kHz V nV/ 0.0015 12 45 -120 2 % MHz deg dB V/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. www.national.com 2 Design Electrical Characteristics Note 4: The following parameters are not tested or guaranteed. (Continued) Note 3: For operation at ambient temperatures above 25C, the device must be derated based on a 150C maximum junction temperature and a thermal resistance, junction to ambient, as follows: LM837N, 90C/W; LM837M, 150C/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 DS009047-11 DS009047-12 3 www.national.com Typical Performance Characteristics Supply Current vs Supply Voltage (Continued) Supply Current vs Ambient Temperature Positive Current Limit DS009047-15 DS009047-13 DS009047-14 Negative Current Limit Maximum Output Voltage vs Supply Voltage Maximum Output Voltage vs Supply Voltage DS009047-16 DS009047-17 DS009047-18 Maximum Output Voltage vs Ambient Temperature Maximum Output Voltage vs Ambient Temperature Power Bandwidth DS009047-21 DS009047-19 DS009047-20 www.national.com 4 Typical Performance Characteristics Normalized Slew Rate & Gain Bandwidth vs Supply Voltage (f = 100 kHz) (Continued) Normalized Slew Rate & Gain Bandwidth (f = 100 kHz) vs Ambient Temperature Voltage Gain vs Supply Voltage DS009047-24 DS009047-22 DS009047-23 Voltage Gain vs Ambient Temperature Power Supply Rejection vs Frequency CMRR vs Frequency DS009047-27 DS009047-25 DS009047-26 Open Loop Gain & Phase vs Frequency Total Harmonic Distortion vs Frequency Equivalent Input Noise Voltage vs Frequency DS009047-28 DS009047-29 DS009047-30 5 www.national.com Typical Performance Characteristics Equivalent Input Noise Current vs Frequency (Continued) DS009047-31 Small Signal, Non-Inverting TA = 25C, AV = 1, RL = 600, VS = 15V Current Limit TA = 25C, VS = 15V, RL = 100, AV = 1 DS009047-6 DS009047-7 Large Signal Non-Inverting TA = 25C, RL = 600, VS = 15V Large Signal Inverting TA = 25C, RL = 600, VS = 15V DS009047-8 DS009047-9 www.national.com 6 Physical Dimensions inches (millimeters) unless otherwise noted Molded Package (SO) Order Number LM837M NS Package Number M14A Lit. #107255 Molded Dual-In-Line Package Order Number LM837N NS Package Number N14A 7 www.national.com LM837 Low Noise Quad Operational Amplifier 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. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Francais Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 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 Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 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. |
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