LM124A/LM124JAN 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. n Eliminates need for dual supplies n Four internally compensated op amps in a single package n Allows directly sensing near GND and VOUT also goes to GND n Compatible with all forms of logic n Power drain suitable for battery operation 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. Unique Characteristics n 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 n The unity gain cross frequency is temperature compensated n The input bias current is also temperature compensated Features n Internally frequency compensated for unity gain n Large DC voltage gain 100 dB n Wide bandwidth (unity gain) 1 MHz (temperature compensated) n Wide power supply range: Single supply 3V to 32V or dual supplies 1.5V to 16V n Very low supply current drain (700 A) -- essentially independent of supply voltage n Low input biasing current 45 nA (temperature compensated) n Low input offset voltage 2 mV and offset current: 5 nA n Input common-mode voltage range includes ground n Differential input voltage range equal to the power supply voltage n Large output voltage swing 0V to V+ - 1.5V Ordering Information NSC Part Number JAN Part Number NSC Package Number JL124BCA JM38510/11005BCA J14A Package Description 14LD CERDIP JL124BDA JM38510/11005BDA W14B 14LD CERPACK JL124BZA JM38510/11005BZA WG14A JL124SCA JM38510/11005SCA J14A 14LD CERDIP 14LD CERPACK 14LD Ceramic SOIC JL124SDA JM38510/11005SDA W14B JL124ABCA JM38510/11006BCA J14A 14LD CERDIP JL124ABDA JM38510/11006BDA W14B 14LD CERPACK JL124ABZA JM38510/11006BZA WG14A JL124ASCA JM38510/11006SCA J14A 14LD CERDIP JL124ASDA JM38510/11006SDA W14B 14LD CERPACK JL124ASZA JM38510/11006SZA WG14A (c) 2005 National Semiconductor Corporation DS201007 14LD Ceramic SOIC 14LD Ceramic SOIC www.national.com LM124A/LM124JAN Low Power Quad Operational Amplifiers April 2005 LM124A/LM124JAN Connection Diagrams Dual-In-Line Package 20100701 Top View See NS Package Number J14A 20100733 See NS Package Number W14B or WG14A Schematic Diagram (Each Amplifier) 20100702 www.national.com 2 LM124A/LM124JAN Absolute Maximum Ratings (Note 1) Power Dissipation (Note 2) CERDIP 400mW CERPACK 350mW Ceramic SOIC 350mW Supply Voltage, V+ 36VDC or 18VDC Input Voltage Differential 30VDC Input Voltage Input Current -0.3VDC to +32VDC (VIN < -0.3VDC) (Note 3) 10 to 0.1mA Output Short-Circuit to GND (Note 4) V+ 15VDC and TA = 25C (One Amplifier) Continuous -55C TA +125C Operating Temperature Range Maximum Junction Temperature (Note 2) 175C -65C TA +150C Storage Temperature Range Lead Temperature (Soldering, 10 seconds) 260C Thermal Resistance JA CERDIP (Still Air) 120C/W (500LF/Min Air flow) 51C/W CERPACK (Still Air) 140C/W (500LF/Min Air flow) 116C/W Ceramic SOIC (Still Air) 140C/W (500LF/Min Air flow) 116C/W JC CERDIP 35C/W CERPACK 60C/W Ceramic SOIC 60C/W Package Weight (Typical) CERDIP 2200mg CERPACK 460mg Ceramic SOIC 410mg ESD Tolerance (Note 5) 250V 3 www.national.com LM124A/LM124JAN Quality Conformance Inspection MIL-STD-883, Method 5005 -- Group A Subgroup Description 1 Static tests at 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 www.national.com Temp (C) 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 4 SYMBOL PARAMETER CONDITIONS VIO Input Offset Voltage MIN MAX UNIT SUB GROUPS VCC+ = 30V, VCC- = Gnd, VCM = -15V -5.0 5.0 mV 1 -7.0 7.0 mV 2, 3 VCC+ = 2V, VCC- = -28V, VCM = 13V -5.0 5.0 mV 1 -7.0 7.0 mV 2, 3 VCC+ = 5V, VCC- = Gnd, VCM = -1.4V -5.0 5.0 mV 1 -7.0 7.0 mV 2, 3 -5.0 5.0 mV 1 -7.0 7.0 mV 2, 3 -30 30 nA 1, 2 -75 75 nA 3 -30 30 nA 1, 2 -75 75 nA 3 VCC+ = 5V, VCC- = Gnd, VCM = -1.4V -30 30 nA 1, 2 -75 75 nA 3 VCC+ = 2.5V, VCC- = -2.5V, VCM = 1.1V -30 30 nA 1, 2 -75 75 nA 3 VCC+ = 30V, VCC- = Gnd, VCM = -15V -150 +0.1 nA 1, 2 -300 +0.1 nA 3 VCC+ = 2V, VCC- = -28V, VCM = 13V -150 +0.1 nA 1, 2 -300 +0.1 nA 3 -150 +0.1 nA 1, 2 -300 +0.1 nA 3 VCC+ = 2.5V, VCC- = -2.5V, VCM = 1.1V -150 +0.1 nA 1, 2 -300 +0.1 nA 3 VCC- = Gnd, VCM = -1.4V, 5V VCC 30V -100 100 V/V 1, 2, 3 76 dB 1, 2, 3 -70 mA 1, 2, 3 3 mA 1, 2 4 mA 3 + VCC = 2.5V, = 1.1V IIO Input Offset Current VCC = 2V, VCM = 13V Input Bias Current VCC- = -2.5V, VCM VCC+ = 30V, VCC- = Gnd, VCM = -15V + IIB NOTES + VCC- VCC- VCC = 5V, VCM = -1.4V = -28V, = Gnd, +PSRR Power Supply Rejection Ratio CMRR Common Mode Rejection Ratio IOS+ Output Short Circuit Current VCC+ = 30V, VCC - = Gnd, Vo = +25V ICC Power Supply Current VCC+ = 30V, VCC - = Gnd Delta VIO / Delta T Delta IIO / Delta T Input Offset Voltage Temperature Sensitivity Input Offset Current Temperature Sensitivity (Note 6) +25C TA +125C, VCC+ = 5V, VCC - = 0V, VCM = -1.4V -30 30 V/C 2 -55C TA +25C, VCC+ = 5V, VCC- = 0V, VCM = -1.4V -30 30 V/C 3 +25C TA +125C, VCC+ = 5V, VCC- = 0V, VCM = -1.4V -400 400 pA/C 2 -55C TA +25C, VCC+ = 5V, VCC- = 0V, VCM = -1.4V -700 700 pA/C 3 5 www.national.com LM124A/LM124JAN LM124 JAN DC Electrical Characteristics LM124A/LM124JAN LM124 JAN DC Electrical Characteristics SYMBOL PARAMETER CONDITIONS VOL Logical "0" Output Voltage VOH AVS+ AVS +VOP Logical "1" Output Voltage Voltage Gain Gain Voltage Maximum Output Voltage Swing www.national.com NOTES MIN MAX UNIT SUB GROUPS VCC+ = 30V, VCC- = Gnd, RL = 10K 35 mV 4, 5, 6 VCC+ = 30V, VCC- = Gnd, IOL = 5mA 1.5 V 4, 5 ,6 VCC+ = 4.5V, VCC- = Gnd, IOL = 2A 0.4 V 4, 5, 6 VCC+ = 30V, VCC- = Gnd, IOH = -10mA 27 V 4, 5, 6 VCC+ = 4.5V, VCC- = Gnd, IOH = -10mA 2.4 V 4, 5 2.3 V 6 VCC+ 50 V/mV 4 25 V/mV 5, 6 VCC+ = 30V, VCC- = Gnd, 5V VO 20V, RL = 2K 50 V/mV 4 25 V/mV 5, 6 VCC+ = 5V, VCC- = Gnd, 1V VO 2.5V, RL = 10K 10 V/mV 4, 5, 6 VCC+ = 5V, VCC- = Gnd, 1V VO 2.5V, RL = 2K 10 V/mV 4, 5, 6 VCC+ = 30V, VCC- = Gnd, VO = +30V, RL = 10K 27 V 4, 5, 6 VCC+ = 30V, VCC- = Gnd, Vo = +30V, RL = 2K 26 V 4, 5, 6 VCC- = 30V, 1V VO 26V, RL = 10K = Gnd, 6 The following conditions apply to all the following parameters, unless otherwise specified. AC: +VCC = 30V, -VCC = 0V. SYMBOL PARAMETER CONDITIONS TRTR Transient Response: Rise Time VCC+ = 30V, VCC- = Gnd + VCC- NOTES TROS Transient Response: Overshoot VCC = 30V, SR Slew Rate: Rise/Fall VCC+ = 30V, VCC- = Gnd NIBB Noise Broadband VCC+ = 15V, VCC- = -15V, BW = 10Hz to 5KHz NIPC Noise Popcorn VCC+ = 15V, VCC- = -15V, Rs = 20K CS Channel Separation VCC+ = 30V, VCC- = Gnd, VIN = 1V and 16V, RL = 2K LM124 JAN DC -- Drift Values MIN = Gnd MAX UNIT SUB GROUPS 1.0 S 7, 8A, 8B 50 % 7, 8A, 8B 0.1 V/S 7, 8A, 8B 15 V/rms 7 50 V/pK 7 dB 7 80 "Delta calculations performed on JAN S and QMLV devices at group B, subgroup 5 only" SYMBOL PARAMETER CONDITIONS VIO Input Offset Voltage IIB Input Bias Current NOTES MIN MAX UNIT SUB GROUPS VCC+ = 30V, VCC- = Gnd, VCM = -15V -1.0 1.0 mV 1 VCC+ = 30V, VCC- = Gnd, VCM = -15V -15 15 nA 1 7 www.national.com LM124A/LM124JAN LM124 JAN AC Electrical Characteristics LM124A/LM124JAN LM124A JAN DC Electrical Characteristics SYMBOL PARAMETER CONDITIONS VIO Input Offset Voltage MIN MAX UNIT SUB GROUPS VCC+ = 30V, VCC- = Gnd, VCM = -15V -2.0 2.0 mV 1 -4.0 4.0 mV 2, 3 VCC+ = 2V, VCC- = -28V, VCM = 13V -2.0 2.0 mV 1 -4.0 4.0 mV 2, 3 VCC+ = 5V, VCC- = Gnd, VCM = -1.4V -2.0 2.0 mV 1 -4.0 4.0 mV 2, 3 VCC+ -2.0 2.0 mV 1 -4.0 4.0 mV 2, 3 VCC+ = 30V, VCC- = Gnd, VCM = -15V -10 10 nA 1, 2 -30 30 nA 3 VCC+ -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- = -2.5V, VCM = 1.1V -10 10 nA 1, 2 -30 30 nA 3 VCC+ = 30V, VCC- = Gnd, VCM = -15V -50 +0.1 nA 1, 2 -100 +0.1 nA 3 VCC+ = 2V, VCC- = -28V, VCM = 13V -50 +0.1 nA 1, 2 -100 +0.1 nA 3 VCC+ -50 +0.1 nA 1, 2 -100 +0.1 nA 3 VCC+ = 2.5V, VCC- = -2.5V, VCM = 1.1V -50 +0.1 nA 1, 2 -100 +0.1 nA 3 VCC- = Gnd, VCM = -1.4V, 5V VCC 30V -100 100 V/V 1, 2, 3 76 dB 1, 2, 3 -70 mA 1, 2, 3 1, 2 = 2.5V, = 1.1V IIO Input Offset Current = 2V, VCM = 13V IIB Input Bias Current VCC- VCC- VCC- = 5V, VCM = -1.4V NOTES = -2.5V, VCM = -28V, = Gnd, +PSRR Power Supply Rejection Ratio CMRR Common Mode Rejection Ratio IOS+ Output Short Circuit Current VCC+ = 30V, VCC - = Gnd, VO = +25V ICC Power Supply Current VCC+ = 30V, VCC - = Gnd Delta VIO/ Delta T Delta IIO / Delta T Input Offset Voltage Temperature Sensitivity Input Offset Current Temperature Sensitivity www.national.com (Note 6) 3.0 mA 4.0 mA 3 +25C TA +125C, VCC+ = 5V, VCC- = 0V, VCM = -1.4V -30 30 V/C 2 -55C TA +25C, VCC+ = 5V, VCC- = 0V, VCM = -1.4V -30 30 V/C 3 +25C TA +125C, VCC+ = 5V, VCC- = 0V, VCM = -1.4V -400 400 pA/C 2 -55C TA +25C, VCC+ = 5V, VCC- = 0V, VCM = -1.4V -700 700 pA/C 3 8 SYMBOL PARAMETER CONDITIONS VOL Logical "0" Output Voltage VOH + AVS AVS +VOP Logical "1" Output Voltage Voltage Gain Gain Voltage Maximum Output Voltage Swing NOTES MIN MAX UNIT SUB GROUPS VCC+ = 30V, VCC- = Gnd, RL = 10K 35 mV 4, 5, 6 VCC+ = 30V, VCC- = Gnd, IOL = 5mA 1.5 V 4, 5, 6 VCC+ = 4.5V, VCC- = Gnd, IOL = 2A 0.4 V 4, 5, 6 VCC+ = 30V, VCC- = Gnd, IOH = -10mA 27 V 4, 5, 6 VCC+ = 4.5V, VCC- = Gnd, IOH = -10mA 2.4 V 4, 5 2.3 V 6 50 V/mV 4 25 V/mV 5, 6 VCC+ = 30V, VCC- = Gnd, 5V VO 20V, RL = 2K 50 V/mV 4 25 V/mV 5, 6 VCC+ = 5V, VCC- = Gnd, 1V VO 2.5V, RL = 10K 10 V/mV 4, 5, 6 VCC+ = 5V, VCC- = Gnd, 1V VO 2.5V, RL = 2K 10 V/mV 4, 5, 6 VCC+ = 30V, VCC- = Gnd, VO = +30V, RL = 10K 27 V 4, 5, 6 VCC+ = 30V, VCC- = Gnd, VO = +30V, RL = 2K 26 V 4, 5, 6 + VCC- VCC = 30V, 1V VO 26V, RL = 10K = Gnd, 9 www.national.com LM124A/LM124JAN LM124A JAN DC Electrical Characteristics LM124A/LM124JAN LM124A JAN AC Electrical Characteristics The following conditions apply to all the following parameters, unless otherwise specified. AC: +VCC = 30V, -VCC = 0V SYMBOL PARAMETER CONDITIONS TRTR Transient Response: Rise Time VCC+ = 30V, VCC- = Gnd VCC- NOTES TROS Transient Response: Overshoot VCC+ SR Slew Rate: Rise/Fall VCC+ = 30V, VCC- = Gnd NIBB Noise Broadband VCC+ = 15V, VCC- = -15V, BW = 10Hz to 5KHz NIPC Noise Popcorn VCC+ = 15V, VCC- = -15V, Rs = 20K BW = 10Hz to 5KHz CS Channel Separation VCC+ = 30V, VCC- = Gnd RL = 2K VCC+ = 30V, VCC- = Gnd, VIN = 1V and 16V, RL = 2K www.national.com = 30V, MIN = Gnd 10 MAX UNIT SUB GROUPS 1.0 S 7, 8A, 8B 50 % 7, 8A, 8B 0.1 V/S 7, 8A, 8B 15 V/rms 7 50 V/pK 7 80 dB 7 80 dB 7 "Delta calculations performed on JAN S and QMLV devices at group Symbol PARAMETER CONDITIONS Vio Input Offset Voltage iib Input Bias Current NOTES MIN MAX UNIT SUB GROUPS Vcc+ = 30V, Vcc- = Gnd, Vcm = -15V -0.5 0.5 mV 1 Vcc+ = 30V, Vcc- = Gnd, Vcm = -15V -10 10 nA 1 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. 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 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), JA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/JA or the number given in the Absolute Maximum Ratings, whichever is lower. Note 3: 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 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: Human body model, 1.5 k in series with 100 pF. Note 6: 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+. 11 www.national.com LM124A/LM124JAN LM124A JAN DC -- Drift Values B, subgroup 5 only" LM124A/LM124JAN Typical Performance Characteristics Input Voltage Range Input Current 20100734 20100735 Supply Current Voltage Gain 20100736 20100737 Open Loop Frequency Response Common Mode Rejection Ratio 20100738 20100739 www.national.com 12 LM124A/LM124JAN Typical Performance Characteristics (Continued) Voltage Follower Pulse Response Voltage Follower Pulse Response (Small Signal) 20100741 20100740 Large Signal Frequency Response Output Characteristics Current Sourcing 20100742 20100743 Output Characteristics Current Sinking Current Limiting 20100744 20100745 13 www.national.com LM124A/LM124JAN Typical Performance Characteristics (Continued) Input Current (LM2902 only) Voltage Gain (LM2902 only) 20100746 20100747 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 noninverting 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 LM124MIL 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 The LM124MIL 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 output of the amplifier to ground to increase the class A bias current and prevent crossover distortion. www.national.com 14 LM124A/LM124JAN Typical Single-Supply Applications (V+ = 5.0 VDC) Non-Inverting DC Gain (0V Input = 0V Output) 20100705 *R not needed due to temperature independent IIN DC Summing Amplifier (VIN'S 0 VDC and VO VDC) Power Amplifier 20100707 20100706 V0 = 0 VDC for VIN = 0 VDC Where: V0 = V1 + V2 - V3 - V4 AV = 10 (V1 + V2) (V3 + V4) to keep VO > 0 VDC 15 www.national.com LM124A/LM124JAN Typical Single-Supply Applications (V+ = 5.0 VDC) LED Driver (Continued) "BI-QUAD" RC Active Bandpass Filter 20100708 20100709 fo = 1 kHz Q = 50 AV = 100 (40 dB) Fixed Current Sources Lamp Driver 20100711 20100710 www.national.com 16 LM124A/LM124JAN Typical Single-Supply Applications Pulse Generator (V+ = 5.0 VDC) (Continued) Current Monitor 20100715 Squarewave Oscillator 20100712 *(Increase R1 for IL small) Driving TTL 20100716 Pulse Generator 20100713 Voltage Follower 20100714 20100717 17 www.national.com LM124A/LM124JAN Typical Single-Supply Applications (V+ = 5.0 VDC) (Continued) High Compliance Current Sink 20100718 IO = 1 amp/volt VIN (Increase RE for Io small) Low Drift Peak Detector 20100719 www.national.com 18 Comparator with Hysteresis (Continued) Ground Referencing a Differential Input Signal 20100720 20100721 VO = VR Voltage Controlled Oscillator Circuit 20100722 *Wide control voltage range: 0 VDC VC 2 (V+ -1.5 VDC) Photo Voltaic-Cell Amplifier 20100723 19 www.national.com LM124A/LM124JAN Typical Single-Supply Applications (V+ = 5.0 VDC) LM124A/LM124JAN Typical Single-Supply Applications (V+ = 5.0 VDC) (Continued) AC Coupled Inverting Amplifier 20100724 AC Coupled Non-Inverting Amplifier 20100725 www.national.com 20 LM124A/LM124JAN Typical Single-Supply Applications (V+ = 5.0 VDC) (Continued) DC Coupled Low-Pass RC Active Filter 20100726 fO = 1 kHz Q=1 AV = 2 High Input Z, DC Differential Amplifier 20100727 21 www.national.com LM124A/LM124JAN Typical Single-Supply Applications (V+ = 5.0 VDC) (Continued) High Input Z Adjustable-Gain DC Instrumentation Amplifier 20100728 Using Symmetrical Amplifiers to Reduce Input Current (General Concept) Bridge Current Amplifier 20100730 20100729 www.national.com 22 LM124A/LM124JAN Typical Single-Supply Applications (V+ = 5.0 VDC) (Continued) Bandpass Active Filter 20100731 fO = 1 kHz Q = 25 23 www.national.com LM124A/LM124JAN Revision History Section Date Released Revision Section Originator Changes 01/27/05 A New Released, Corporate format R. Malone 2 MDS data sheets converted into one Corp. data sheet format. MJLM124-X, Rev. 1B1 and MJLM124A-X, Rev. 2A1. MDS data sheets will be archived. 04/18/05 B Update Absolute Maximum Ratings Section R. Malone Corrected typo for Supply Voltage limit From: 32Vdc or +18Vdc TO: 32Vdc or 18Vdc. Added Cerdip package weight. www.national.com 24 LM124A/LM124JAN Physical Dimensions inches (millimeters) unless otherwise noted Ceramic Dual-In-Line Package NS Package Number J14A Ceramic Flatpack Package NS Package Number W14B 25 www.national.com LM124A/LM124JAN Low Power Quad Operational Amplifiers Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Pin Ceramic Package (WG) NS Package Number WG14A 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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