Low Power Quad Operational Amplifiers General Description Advantages The LM124/124A consists of four independent, high gain, internally frequency compensated operational amplifiers which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. Application areas include transducer amplifiers, DC gain blocks and all the conventional op amp circuits which now can be more easily implemented in single power supply systems. For example, the LM124/124A can be directly operated off of the standard +5Vdc power supply voltage which is used in digital systems and will easily provide the required interface electronics without requiring the additional +15Vdc power supplies. Eliminates need for dual supplies Four internally compensated op amps in a single package Allows directly sensing near GND and VOUT also goes to Unique Characteristics In the linear mode the input common-mode voltage range includes ground and the output voltage can also swing to ground, even though operated from only a single power supply voltage The unity gain cross frequency is temperature compensated The input bias current is also temperature compensated GND Compatible with all forms of logic Power drain suitable for battery operation Features Available with Radiation Guarantee 100 krad(Si) -- High Dose Rate 100 krad(Si) -- ELDRS Free Internally frequency compensated for unity gain Large DC voltage gain 100 dB Wide bandwidth (unity gain) 1 MHz (temperature compensated) Wide power supply range: Single supply 3V to 32V or dual supplies 1.5V to 16V Very low supply current drain (700 A)--essentially independent of supply voltage Low input biasing current 45 nA (temperature compensated) Low input offset voltage 2 mV and offset current: 5 nA Input common-mode voltage range includes ground Differential input voltage range equal to the power supply voltage Large output voltage swing 0V to V+ - 1.5V Ordering Information SMD Part Number NS Package Number LM124J/883 7704301CA J14A 14LD CERDIP LM124AE/883 77043022A E20A 20LD LEADLESS CHIP CARRIER LM124AJ/883 7704302CA J14A 14LD CERDIP W14B 14LD CERPACK NS Part Number LM124AW/883 LM124AWG/883 Package Description 7704302XA WG14A LM124AJRQMLV (Note 11) 5962R9950401VCA, 100 krad(Si) J14A 14LD CERDIP LM124AJRLQMLV (Note 12) 5962R9950402VCA, 100 krad(Si) J14A 14LD CERDIP LM124AWGRQMLV (Note 11) 5962R9950401VZA, 100 krad(Si) WG14A 14LD CERAMIC SOIC LM124AWGRLQMLV (Note 12) 5962R9950402VZA, 100 krad(Si) WG14A 14LD CERAMIC SOIC LM124AWRQMLV (Note 11) 5962R9950401VDA, 100 krad(Si) W14B 14LD CERPACK LM124AWRLQMLV (Note 12) 5962R9950402VDA, 100 krad(Si) W14B 14LD CERPACK LM124 MDE (Note 12) 5962R9950402V9A, 100 krad(Si) (Note 1) Bare Die LM124 MDR (Note 11) 5962R9950401V9A, 100 krad(Si) (Note 1) Bare Die (c) 2011 National Semiconductor Corporation 201080 14LD CERAMIC SOIC www.national.com LM124AQML/LM124QML Low Power Quad Operational Amplifiers October 12, 2010 LM124AQML LM124QML LM124AQML/LM124QML Note 1: FOR ADDITIONAL DIE INFORMATION, PLEASE VISIT THE HI REL WEB SITE AT: www.national.com/analog/space/level_die Connection Diagrams Leadless Chip Carrier 20108055 See NS Package Number E20A Dual-In-Line Package 20108001 Top View See NS Package Number J14A 20108033 See NS Package Number W14B or WG14A www.national.com 2 LM124AQML/LM124QML Schematic Diagram (Each Amplifier) 20108002 3 www.national.com LM124AQML/LM124QML Absolute Maximum Ratings (Note 2) Supply Voltage, V+ Differential Input Voltage Input Voltage Input Current (VIN < -0.3Vdc) (Note 5) Power Dissipation (Note 3) CERDIP CERPACK LCC CERAMIC SOIC Output Short-Circuit to GND (One Amplifier) (Note 4) 32Vdc or 16Vdc 32Vdc -0.3Vdc to +32Vdc 50 mA 1260mW 700mW 1350mW 700mW V+ 15Vdc and TA = 25C Continuous -55C TA +125C 150C Operating Temperature Range Maximum Junction Temperature Storage Temperature Range -65C TA +150C 260C Lead Temperature (Soldering, 10 seconds) Thermal Resistance ThetaJA 103C/W CERDIP (Still Air) (500LF/Min Air flow) 51C/W 176C/W CERPACK (Still Air) (500LF/Min Air flow) 116C/W 91C/W LCC (Still Air) (500LF/Min Air flow) 66C/W 176C/W CERAMIC SOIC (Still Air) (500LF/Min Air flow) ThetaJC CERDIP CERPACK LCC CERAMIC SOIC Package Weight (Typical) CERDIP CERPACK LCC CERAMIC SOIC ESD Tolerance (Note 6) www.national.com 116C/W 19C/W 18C/W 24C/W 18C/W 2200mg 460mg 470mg 410mg 250V 4 LM124AQML/LM124QML Quality Conformance Inspection MIL-STD-883, Method 5005 - Group A Subgroup Description 1 Static tests at Temp ( C) +25 2 Static tests at +125 3 Static tests at -55 4 Dynamic tests at +25 5 Dynamic tests at +125 6 Dynamic tests at -55 7 Functional tests at +25 8A Functional tests at +125 8B Functional tests at -55 9 Switching tests at +25 10 Switching tests at +125 11 Switching tests at -55 5 www.national.com LM124AQML/LM124QML LM124/883 Electrical Characteristics SMD: 77043 DC Parameters (The following conditions apply to all the following parameters, unless otherwise specified.) All voltages referenced to device ground. Symbol Parameter Conditions Notes Min V+ = 5V ICC Power Supply Current V+ = 30V SubGroups 1.2 mA 1, 2, 3 3.0 mA 1 4.0 mA 2, 3 12 uA 1 V+ = 15V, VOUT = 2V, +VIN = 0mV, -VIN = +65mV 10 mA 1 mA 2, 3 Output Sink Current ISOURCE V+ = 15V, VOUT = 2V, Output Source Current +VIN = 0mV, -VIN = -65mV IOS Short Circuit Current 5 V+ = 5V, VOUT = 0V V+ = 30V, VCM = 28V V+ = 5V, VCM = 0V V+ = 30V, VCM = 28.5V CMRR Common Mode Rejection Ratio V+ = 30V, VIN = 0V to 28.5V (Note 14) +IIB Input Bias Current V+ = 5V, VCM = 0V (Note 13) IIO Input Offset Current V+ = 5V, VCM = 0V PSRR Power Supply Rejection Ratio V+ = 5V to 30V, VCM = 0V -20 mA 1 -10 mA 2, 3 mA 1 -60 V+ = 30V, VCM = 0V Input Offset Voltage Unit V+ = 15V, VOUT = 200mV, +VIN = 0mV, -VIN = +65mV ISINK VIO Max -5 5 mV 1 -7 7 mV 2, 3 -5 5 mV 1 -7 7 mV 2, 3 -5 5 mV 1 -7 7 mV 2, 3 -5 5 mV 1 dB 1 70 -150 10 nA 1 -300 10 nA 2, 3 -30 30 nA 1 -100 100 nA 2, 3 dB 1 65 (Note 7) (Note 14) 28.5 V 1 28 V 2, 3 VCM Common Mode Voltage Range V+ = 30V AVS Large Signal Gain V+ = 15V, RL = 2K , VO = 1V to 11V 50 V/mV 4 25 V/mV 5, 6 VOH V+ = 30V, RL = 2K 26 V 4, 5, 6 Output Voltage High V+ = 30V, RL = 10K 27 V 4, 5, 6 40 mV 4, 5, 6 V+ = 30V, RL = 10K VOL Output Voltage Low V+ = 30V, ISINK = 1uA V+ = 5V, RL= 10K Channel Separation 1KHz, 20KHz (Amp to Amp Coupling) www.national.com (Note 9) (Note 15) 6 80 40 mV 4 100 mV 5, 6 20 mV 4, 5, 6 dB 4 SMD: 77043 DC Parameters (The following conditions apply to all the following parameters, unless otherwise specified.) All voltages referenced to device ground. Symbol Parameter Conditions Notes Max Unit SubGroups 1.2 mA 1, 2, 3 3.0 mA 1 4.0 mA 2, 3 12 uA 1 10 mA 1 mA 2, 3 Min V+ = 5V ICC Power Supply Current V+ = 30V V+ = 15V, VOUT = 200mV, +VIN = 0mV, -VIN = +65mV ISINK Output Sink Current ISOURCE V+ = 15V, VOUT = 2V, Output Source Current +VIN = 0mV, -VIN = -65mV IOS Short Circuit Current V+ = 15V, VOUT = 2V, +VIN = 0mV, -VIN = +65mV 5 V+ = 5V, VOUT = 0V Input Offset Voltage mA 1 mV 1 4 mV 2, 3 V+ = 30V, VCM = 28.5V -2 2 mV 1 V+ = 30V, VCM = 28V -4 4 mV 2, 3 -2 2 mV 1 -4 4 mV 2, 3 dB 1 V+ = 30V, VIN = 0V to 28.5V (Note 14) IIB Input Bias Current V+ = 5V, VCM = 0V (Note 13) IIO Input Offset Current V+ = 5V, VCM = 0V PSRR Power Supply Rejection Ratio V+ = 5V to 30V, VCM = 0V VCM Common Mode Voltage Range V+ = 30V (Note 7) (Note 14) AVS Large Signal Gain V+ = 15V, RL = 2K , VO = 1V to 11V (Note 8) 70 -50 10 nA 1 -100 10 nA 2, 3 -10 10 nA 1 -30 30 nA 2, 3 dB 1 65 28.5 V 1 28 V 2, 3 50 V/mV 4 25 V/mV 5, 6 V+ = 30V, RL = 2K 26 V 4, 5, 6 V+ = 30V, RL = 10K 27 V 4, 5, 6 40 mV 4, 5, 6 40 mV 4 100 mV 5, 6 20 mV 4, 5, 6 dB 4 V+ = 30V, RL = 10K Output Voltage Low 2, 3 2 Common Mode Rejection Ratio VOL mA -4 CMRR Output Voltage High 1 -10 -2 V+ = 5V, VCM = 0V VOH mA -60 V+ = 30V, VCM = 0V VIO -20 V+ = 30V, ISINK = 1uA V+ = 5V, RL = 10K Channel Separation 1KHz, 20KHz Amp to Amp Coupling (Note 9) (Note 15) 7 80 www.national.com LM124AQML/LM124QML LM124A/883 Electrical Characteristics LM124AQML/LM124QML LM124A RAD HARD Electrical Characteristics SMD: 5962R99504 (Note 11, Note 12) DC Parameters (The following conditions apply to all the following parameters, unless otherwise specified.) All voltages referenced to device ground. Symbol VIO IIO Parameter Input Offset Voltage Input Offset Current Conditions Notes Max UniT VCC+ = 30V, VCC- = Gnd, VCM = +15V -2 2 mV 1 -4 4 mV 2, 3 VCC+ = 2V, VCC- = -28V, VCM = -13V -2 2 mV 1 -4 4 mV 2, 3 VCC+ = 5V, VCC- = Gnd, VCM = +1.4V -2 2 mV 1 -4 4 mV 2, 3 VCC+ = 2.5V, VCC- = -2.5, VCM = -1.1V -2 2 mV 1 -4 4 mV 2, 3 VCC+ = 30V, VCC- = Gnd, VCM = +15V -10 10 nA 1, 2 -30 30 nA 3 VCC+ = 2V, VCC- = -28V, VCM = -13V -10 10 nA 1, 2 -30 30 nA 3 VCC+ = 5V, VCC- = Gnd, VCM = +1.4V -10 10 nA 1, 2 -30 30 nA 3 VCC+ = 2.5V, VCC- = -2.5, VCM = -1.1V -10 10 nA 1, 2 -30 30 nA 3 1, 2 VCC+ = 30V, VCC- = Gnd, VCM = +15V IIB Input Bias Current VCC+ = 2V, VCC- = -28V, VCM = -13V (Note 13) VCC+ = 5V, VCC- = Gnd, VCM = +1.4V VCC+ = 2.5V, VCC- = -2.5, VCM = -1.1V VCC- = Gnd, VCM = +1.4V, +PSRR Power Supply Rejection Ratio CMRR Common Mode Rejection Ratio IOS+ Output Short Circiut Current ICC Power Supply Current VCC+ = 30V, VCC- = Gnd VIO/ T Input Offset Voltage Temperature Sensitivity IO/ T Input Offset Current Temperature Sensitivity www.national.com SubGroups Min 5V VCC 30V (Note 14) VCC+ = 30V, VCC- = Gnd, VO = 25V +25C TA +125C, +VCC = 5V, -VCC = 0V, VCM = +1.4V -50 +0.1 nA -100 +0.1 nA 3 -50 +0.1 nA 1, 2 -100 +0.1 nA 3 -50 +0.1 nA 1, 2 -100 +0.1 nA 3 -50 +0.1 nA 1, 2 -100 +0.1 nA 3 -100 100 uV/V 1, 2, 3 76 dB 1, 2, 3 -70 mA 1, 2,3 3 mA 1, 2 4 mA 3 -30 30 uV/ C 2 -30 30 uV/ C 3 -400 400 pA/ C 2 -700 700 pA/ C 3 (Note 10) -55C TA +25C, +VCC = 5V, -VCC = 0V, VCM = +1.4V +25C TA +125C, +VCC = 5V, -VCC = 0V, VCM = +1.4V (Note 10) -55C TA +25C, +VCC = 5V, -VCC = 0V, VCM = +1.4V 8 SMD: 5962R99504 (Note 11, Note 12) AC/DC Parameters (The following conditions apply to all the following parameters, unless otherwise specified.) All voltages referenced to device ground. Symbol Parameter Max UniT SubG roups 35 mV 4, 5, 6 VCC+ = 30V, VCC- = Gnd, IOI = 5mA 1.5 V 4, 5, 6 VCC+ = 4.5V, VCC- = Gnd, IOI = 2uA 0.4 V 4, 5, 6 Conditions Notes Min VCC+ = 30V, VCC- = Gnd, RL = 10K VOL VOH AVS+ Logical "0" Output Voltage Logical "1" Output Voltage Voltage Gain VCC+ = 30V, VCC- = Gnd, IOH = -10mA 27 V 4, 5, 6 VCC+ = 4.5V, VCC- = Gnd, IOH = -10mA 2.4 V 4, 5, 6 VCC+ = 30V, VCC- = Gnd, 50 V/mV 4 1V VO 26V, RL = 10K 25 V/mV 5, 6 VCC+ = 30V, VCC- = Gnd, 50 V/mV 4 25 V/mV 5, 6 10 V/mV 4, 5, 6 10 V/mV 4, 5, 6 27 V 4, 5, 6 26 V 4, 5, 6 5V VO 20V, RL = 2K VCC+ = 5V, VCC- = Gnd, AVS Voltage Gain 1V VO 2.5V, RL = 10K VCC+ = 5V, VCC- = Gnd, 1V VO 2.5V, RL = 2K VCC+ = 30V, VCC- = Gnd, +VOP Maximum Output Voltage Swing VO = +30V, RL = 10K VCC+ = 30V, VCC- = Gnd, VO = +30V, RL = 2K TR(TR) Transient Response: Rise Time VCC+ = 30V, VCC- = Gnd 1 uS 7, 8A, 8B TR(OS) Transient Response: Overshoot VCC+ = 30V, VCC- = Gnd 50 % 7, 8A, 8B Slew Rate: Rise VCC+ = 30V, VCC- = Gnd 0.1 V/uS 7, 8A, 8B Slew Rate: Fall VCC+ = 30V, VCC- = Gnd 0.1 V/uS 7, 8A, 8B SR 9 www.national.com LM124AQML/LM124QML LM124A RAD HARD LM124AQML/LM124QML LM124A RAD HARD SMD: 5962R99504 (Note 11, Note 12) AC Parameters (The following conditions apply to all the following parameters, unless otherwise specified.) AC: +VCC = 30V, -VCC = 0V Symbol Max Unit SubGroups 15 uVrm s 7 50 uVpK 7 80 dB 7 RL = 2K , VIN = 1V and 16V, A to B 80 dB 7 RL = 2K , VIN = 1V and 16V, A to C 80 dB 7 RL = 2K , VIN = 1V and 16V, A to D 80 dB 7 RL = 2K , VIN = 1V and 16V, B to A 80 dB 7 RL = 2K , VIN = 1V and 16V, B to C 80 dB 7 80 dB 7 RL = 2K , VIN = 1V and 16V, C to A 80 dB 7 RL = 2K , VIN = 1V and 16V, C to B 80 dB 7 RL = 2K , Vin = 1V and 16V, C to D 80 dB 7 RL = 2K , VIN = 1V and 16V, D to A 80 dB 7 RL = 2K Ohms, VIN = 1V and 16V, D to B 80 dB 7 RL = 2K , Vin = 1V and 16V, D to C 80 dB 7 Parameter NIBB Noise Broadband NIPC Noise Popcorn Conditions Notes Min +VCC = 15V, -VCC = -15V, BW = 10Hz to 5KHz +VCC = 15V, -VCC = -15V, RS = 20K , BW = 10Hz to 5KHz +VCC = 30V, -VCC = Gnd, RL = 2K CS Channel Separation www.national.com RL = 2K , VIN = 1V and 16V, B to D (Note 15) 10 SMD: 5962R99504 (Note 11, Note 12) (The following conditions apply to all the following parameters, unless otherwise specified.) DC: "Delta calculations performed on QMLV devices at group B, subgroup 5 only" Symbol Parameter Conditions Notes Min Max Unit SubGroups VIO Input Offset Voltage VCC+ = 30V, VCC- = Gnd, VCM = +15V -0.5 0.5 mV 1 IIB Input Bias Current VCC+ = 30V, VCC- = Gnd, VCM = +15V -10 10 nA 1 LM124A - POST RADIATION LIMITS +25C SMD: 5962R99504 (Note 11, Note 12) (The following conditions apply to all the following parameters, unless otherwise specified.) All voltages referenced to device ground. Symbol Parameter Min Max Unit SubGroups -2.5 2.5 mV 1 -2.5 2.5 mV 1 -2.5 2.5 mV 1 VCC+ = 2.5V, VCC- = -2.5, VCM = -1.1V -2.5 2.5 mV 1 VCC+ = 30V, VCC- = Gnd, VCM = +15V -15 15 nA 1 -15 15 nA 1 -15 15 nA 1 VCC+ = 2.5V, VCC- = -2.5V, VCM = -1.1V -15 15 nA 1 VCC+ = 30V, VCC- = Gnd, VCM = +15V -75 +0.1 nA 1 -75 +0.1 nA 1 -75 +0.1 nA 1 -75 +0.1 nA 1 40 V/mV 4 40 V/mV 4 Conditions Notes VCC+ = 30V, VCC- = Gnd, VCM = +15V VIO IIO IIB Input Offset Voltage Input Offset Current Input Bias Current VCC+ = 2V, VCC- = -28V, VCM = -13V (Note 11) VCC+ = 5V, VCC- = Gnd, VCM = +1.4V VCC+ = 2V, VCC- = -28V, VCM = -13V (Note 11) VCC+ = 5V, VCC- = Gnd, VCM = +1.4V VCC+ = 2V, VCC- = -28V, VCM = -13V (Note 11) VCC+ = 5V, VCC- = Gnd, VCM = +1.4V VCC+ = 2.5V, VCC- = -2.5V, VCM = -1.1V VCC+ = 30V, VCC- = Gnd, AVS+ Voltage Gain 1V VO 26V, RL = 10K (Note 11) VCC+ = 30V, VCC- = Gnd, 5V VO 20V, RL = 2K 11 www.national.com LM124AQML/LM124QML LM124A RAD HARD - DC Drift Values LM124AQML/LM124QML Note 2: 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. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), ThetaJA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/ ThetaJA or the number given in the Absolute Maximum Ratings, whichever is lower. Note 4: Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output current is approximately 40mA independent of the magnitude of V+. At values of supply voltage in excess of +15VDC, continuous short-circuits can exceed the power dissipation ratings and cause eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers. Note 5: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the op amps to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value greater than -0.3VDC (at 25C). Note 6: Human body model, 1.5 k in series with 100 pF. Note 7: Guaranteed by VIO tests. Note 8: Datalog reading in K=V/mV Note 9: Guaranteed, not tested Note 10: Calculated parameters Note 11: Pre and post irradiation limits are identical to those listed under AC and DC electrical characteristics except as listed in the Post Radiation Limits Table. These parts may be dose rate sensitive in a space environment and demonstrate enhanced low dose rate effect. Radiation end point limits for the noted parameters are guaranteed only for the conditions as specified in MIL-STD-883, Method 1019 Note 12: Low dose rate testing has been performed on a wafer-by-wafer basis, per test method 1019 condition D of MIL-STD-883, with no enhanced low dose rate sensitivity (ELDRS) effect. Note 13: The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so no loading change exists on the input lines. Note 14: The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (at 25C). The upper end of the common-mode voltage range is V+ -1.5V (at 25C), but either or both inputs can go to +32V without damage independent of the magnitude of V+. Note 15: Due to proximity of external components, insure that coupling is not originating via stray capacitance between these external parts. This typically can be detected as this type of capacitance increases at higher frequencies. Typical Performance Characteristics Input Voltage Range Input Current 20108034 www.national.com 20108035 12 LM124AQML/LM124QML Supply Current Voltage Gain 20108036 20108037 Open Loop Frequency Response Common Mode Rejection Ratio 20108038 20108039 Voltage Follower Pulse Response Voltage Follower Pulse Response (Small Signal) 20108041 20108040 13 www.national.com LM124AQML/LM124QML Large Signal Frequency Response Output Characteristics Current Sourcing 20108042 20108043 Output Characteristics Current Sinking Current Limiting 20108045 20108044 www.national.com 14 The LM124 series are op amps which operate with only a single power supply voltage, have true-differential inputs, and remain in the linear mode with an input common-mode voltage of 0 VDC. These amplifiers operate over a wide range of power supply voltage with little change in performance characteristics. At 25C amplifier operation is possible down to a minimum supply voltage of 2.3 VDC. The pinouts of the package have been designed to simplify PC board layouts. Inverting inputs are adjacent to outputs for all of the amplifiers and the outputs have also been placed at the corners of the package (pins 1, 7, 8, and 14). Precautions should be taken to insure that the power supply for the integrated circuit never becomes reversed in polarity or that the unit is not inadvertently installed backwards in a test socket as an unlimited current surge through the resulting forward diode within the IC could cause fusing of the internal conductors and result in a destroyed unit. Large differential input voltages can be easily accommodated and, as input differential voltage protection diodes are not needed, no large input currents result from large differential input voltages. The differential input voltage may be larger than V+ without damaging the device. Protection should be provided to prevent the input voltages from going negative more than -0.3 VDC (at 25C). An input clamp diode with a resistor to the IC input terminal can be used. To reduce the power supply drain, the amplifiers have a class A output stage for small signal levels which converts to class B in a large signal mode. This allows the amplifiers to both source and sink large output currents. Therefore both NPN and PNP external current boost transistors can be used to extend the power capability of the basic amplifiers. The output voltage needs to raise approximately 1 diode drop above ground to bias the on-chip vertical PNP transistor for output current sinking applications. For ac applications, where the load is capacitively coupled to the output of the amplifier, a resistor should be used, from the 15 www.national.com LM124AQML/LM124QML output of the amplifier to ground to increase the class A bias current and prevent crossover distortion. Where the load is directly coupled, as in dc applications, there is no crossover distortion. Capacitive loads which are applied directly to the output of the amplifier reduce the loop stability margin. Values of 50 pF can be accommodated using the worst-case non-inverting unity gain connection. Large closed loop gains or resistive isolation should be used if larger load capacitance must be driven by the amplifier. The bias network of the LM124 establishes a drain current which is independent of the magnitude of the power supply voltage over the range of from 3 VDC to 30 VDC. Output short circuits either to ground or to the positive power supply should be of short time duration. Units can be destroyed, not as a result of the short circuit current causing metal fusing, but rather due to the large increase in IC chip dissipation which will cause eventual failure due to excessive junction temperatures. Putting direct short-circuits on more than one amplifier at a time will increase the total IC power dissipation to destructive levels, if not properly protected with external dissipation limiting resistors in series with the output leads of the amplifiers. The larger value of output source current which is available at 25C provides a larger output current capability at elevated temperatures (see typical performance characteristics) than a standard IC op amp. The circuits presented in the section on typical applications emphasize operation on only a single power supply voltage. If complementary power supplies are available, all of the standard op amp circuits can be used. In general, introducing a pseudo-ground (a bias voltage reference of V+/2) will allow operation above and below this value in single power supply systems. Many application circuits are shown which take advantage of the wide input common-mode voltage range which includes ground. In most cases, input biasing is not required and input voltages which range to ground can easily be accommodated. Application Hints LM124AQML/LM124QML Typical Single-Supply Applications (V+ = 5.0 VDC) Non-Inverting DC Gain (0V Input = 0V Output) 20108005 *R not needed due to temperature independent IIN DC Summing Amplifier (VIN'S 0 VDC and VO VDC) Power Amplifier 20108007 20108006 Where: V0 = V1 + V2 - V3 - V4 (V1 + V2) (V3 + V4) to keep VO > 0 VDC www.national.com V0 = 0 VDC for VIN = 0 VDC AV = 10 16 LM124AQML/LM124QML "BI-QUAD" RC Active Bandpass Filter LED Driver 20108008 20108009 fo = 1 kHz Q = 50 AV = 100 (40 dB) Lamp Driver Fixed Current Sources 20108011 20108010 17 www.national.com LM124AQML/LM124QML Pulse Generator Current Monitor 20108015 20108012 Squarewave Oscillator *(Increase R1 for IL small) Driving TTL 20108013 20108016 Voltage Follower Pulse Generator 20108014 20108017 www.national.com 18 LM124AQML/LM124QML High Compliance Current Sink 20108018 IO = 1 amp/volt VIN (Increase RE for Io small) Low Drift Peak Detector 20108019 19 www.national.com LM124AQML/LM124QML Comparator with Hysteresis Ground Referencing a Differential Input Signal 20108020 20108021 VO = VR Voltage Controlled Oscillator Circuit 20108022 *Wide control voltage range: 0 VDC VC 2 (V+ -1.5 VDC) Photo Voltaic-Cell Amplifier 20108023 www.national.com 20 LM124AQML/LM124QML AC Coupled Inverting Amplifier 20108024 AC Coupled Non-Inverting Amplifier 20108025 21 www.national.com LM124AQML/LM124QML DC Coupled Low-Pass RC Active Filter 20108026 fO = 1 kHz Q=1 AV = 2 High Input Z, DC Differential Amplifier 20108027 www.national.com 22 LM124AQML/LM124QML High Input Z Adjustable-Gain DC Instrumentation Amplifier 20108028 Using Symmetrical Amplifiers to Reduce Input Current (General Concept) Bridge Current Amplifier 20108030 20108029 23 www.national.com LM124AQML/LM124QML Bandpass Active Filter 20108031 fO = 1 kHz Q = 25 www.national.com 24 Date Released Revision Section Changes 9/2/04 A New Release, Corporate format 3 MDS data sheets converted into one Corp. data sheet format. MNLM124-X, Rev. 1A2, MNLM124A-X, Rev. 1A3 and MRLM124A-X-RH, Rev. 5A0. MDS data sheets will be archived. 01/27/05 B Connection Diagrams, Quality Conformance Inspection Section, and Physical Dimensions drawings Added E package Connection Diagram. Changed verbiage under Quality Conformance Title, and Updated Revisions for the Marketing Drawings. 04/18/05 C Update Absolute Maximum Ratings Section Corrected typo for Supply Voltage limit From: 32Vdc or +16Vdc TO: 32Vdc or 16Vdc. Added cerpack, cerdip, LCC package weight. 06/16/06 D Features, Ordering Information Table, Rad Added Available with Radiation Guarantee, Low Hard Electrical Section and Notes Dose NSID's to table 5962R9950402VCA LM124AJRLQMLV, 5962R9950402VDA LM124AWRLQMLV, 5962R9950402VZA LM124AWGRLQMLV, and reference to Note 10 and 11. Deleted code K NSID's LM124AJLQMLV 5962L9950401VCA, LM124AWGLQMLV 5962L9950401VZA, LM124AWLQMLV 5962L9950401VDA, Note 11 to Rad Hard Electrical Heading. Note 11 to Notes. 10/07/2010 E Data sheet title, Features, Ordering table, Update with current device information and format. Electrical characteristic headings, Rad Revision D will be Archived Hard conditions 25 www.national.com LM124AQML/LM124QML Revision History LM124AQML/LM124QML Physical Dimensions inches (millimeters) unless otherwise noted SAMPLE TEXT Ceramic Dual-In-Line Package (J) NS Package Number J14A SAMPLE TEXT 20 Pin Leadless Chip Carrier, Type C (E) NS Package Number E20A www.national.com 26 LM124AQML/LM124QML SAMPLE TEXT Ceramic Flatpak Package NS Package Number W14B SAMPLE TEXT 14-Pin Ceramic Package (WG) NS Package Number WG14A 27 www.national.com LM124AQML/LM124QML Low Power Quad Operational Amplifiers Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Design Support Amplifiers www.national.com/amplifiers WEBENCH(R) Tools www.national.com/webench Audio www.national.com/audio App Notes www.national.com/appnotes Clock and Timing www.national.com/timing Reference Designs www.national.com/refdesigns Data Converters www.national.com/adc Samples www.national.com/samples Interface www.national.com/interface Eval Boards www.national.com/evalboards LVDS www.national.com/lvds Packaging www.national.com/packaging Power Management www.national.com/power Green Compliance www.national.com/quality/green Switching Regulators www.national.com/switchers Distributors www.national.com/contacts LDOs www.national.com/ldo Quality and Reliability www.national.com/quality LED Lighting www.national.com/led Feedback/Support www.national.com/feedback Voltage References www.national.com/vref Design Made Easy www.national.com/easy www.national.com/powerwise Applications & Markets www.national.com/solutions Mil/Aero www.national.com/milaero PowerWise(R) Solutions Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors SolarMagicTM www.national.com/solarmagic PLL/VCO www.national.com/wireless www.national.com/training PowerWise(R) Design University THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION ("NATIONAL") PRODUCTS. NATIONAL MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS PUBLICATION AND RESERVES THE RIGHT TO MAKE CHANGES TO SPECIFICATIONS AND PRODUCT DESCRIPTIONS AT ANY TIME WITHOUT NOTICE. NO LICENSE, WHETHER EXPRESS, IMPLIED, ARISING BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. TESTING AND OTHER QUALITY CONTROLS ARE USED TO THE EXTENT NATIONAL DEEMS NECESSARY TO SUPPORT NATIONAL'S PRODUCT WARRANTY. EXCEPT WHERE MANDATED BY GOVERNMENT REQUIREMENTS, TESTING OF ALL PARAMETERS OF EACH PRODUCT IS NOT NECESSARILY PERFORMED. NATIONAL ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR BUYER PRODUCT DESIGN. BUYERS ARE RESPONSIBLE FOR THEIR PRODUCTS AND APPLICATIONS USING NATIONAL COMPONENTS. PRIOR TO USING OR DISTRIBUTING ANY PRODUCTS THAT INCLUDE NATIONAL COMPONENTS, BUYERS SHOULD PROVIDE ADEQUATE DESIGN, TESTING AND OPERATING SAFEGUARDS. EXCEPT AS PROVIDED IN NATIONAL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, NATIONAL ASSUMES NO LIABILITY WHATSOEVER, AND NATIONAL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO THE SALE AND/OR USE OF NATIONAL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. LIFE SUPPORT POLICY NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices 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. A critical component is any component in 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 and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. Copyright(c) 2010 National Semiconductor Corporation For the most current product information visit us at www.national.com National Semiconductor Americas Technical Support Center Email: support@nsc.com Tel: 1-800-272-9959 www.national.com National Semiconductor Europe Technical Support Center Email: europe.support@nsc.com National Semiconductor Asia Pacific Technical Support Center Email: ap.support@nsc.com National Semiconductor Japan Technical Support Center Email: jpn.feedback@nsc.com