LMC6482CMOS Dual Rail-To-Rail Input and Output OperationalAmplifierGeneral DescriptionThe LMC6482 provides a common-mode range that extendsto both supply rails. This rail-to-rail performance combinedwith excellent accuracy, due to a high CMRR, makes itunique among rail-to-rail input amplifiers.It is ideal for systems, such as data acquisition, that requirea large input signal range. The LMC6482 is also an excellentupgrade for circuits using limited common-mode range am-plifiers such as the TLC272 and TLC277.Maximum dynamic signal range is assured in low voltageand single supply systems by the LMC6482’s rail-to-rail out-put swing. The LMC6482’s rail-to-rail output swing is guar-anteed for loads down to 600Ω.Guaranteed low voltage characteristics and low power dis-sipation make the LMC6482 especially well-suited forbattery-operated systems.LMC6482 is also available in MSOP package which is al-most half the size of a SO-8 device.See the LMC6484 data sheet for a Quad CMOS operationalamplifier with these same features.Features(Typical unless otherwise noted)n Rail-to-Rail Input Common-Mode Voltage Range(Guaranteed Over Temperature)n Rail-to-Rail Output Swing (within 20 mV of supply rail,100 kΩ load)n Guaranteed 3V, 5V and 15V Performancen Excellent CMRR and PSRR: 82 dBn Ultra Low Input Current: 20 fAn High Voltage Gain (RL= 500 kΩ): 130 dBn Specified for 2 kΩ and 600Ω loadsn Available in MSOP PackageApplicationsn Data Acquisition Systemsn Transducer Amplifiersn Hand-held Analytic Instrumentsn Medical Instrumentationn Active Filter, Peak Detector, Sample and Hold, pHMeter, Current Sourcen Improved Replacement for TLC272, TLC2773V Single Supply Buffer CircuitConnection DiagramRail-To-Rail InputDS011713-1DS011713-2Rail-To-Rail OutputDS011713-3DS011713-4August 2000LMC6482 CMOS Dual Rail-To-Rail Input and Output Operational Amplifier© 2001 National Semiconductor Corporation DS011713 www.national.comAbsolute Maximum Ratings (Note 1)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.ESD Tolerance (Note 2) 1.5 kVDifferential Input Voltage±Supply VoltageVoltage at Input/Output Pin (V+) +0.3V, (V−) −0.3VSupply Voltage (V+−V−) 16VCurrent at Input Pin (Note 12)±5mACurrent at Output Pin(Notes 3, 8)±30 mACurrent at Power Supply Pin 40 mALead Temperature(Soldering, 10 sec.) 260˚CStorage Temperature Range −65˚C to +150˚CJunction Temperature (Note 4) 150˚COperating Ratings (Note 1)Supply Voltage 3.0V ≤ V+ ≤ 15.5VJunction Temperature RangeLMC6482AM −55˚C ≤ TJ≤ +125˚CLMC6482AI, LMC6482I −40˚C ≤ TJ≤ +85˚CThermal Resistance (θJA)N Package, 8-Pin Molded DIP 90˚C/WM Package, 8-Pin Surface Mount 155˚C/WMSOP package, 8-Pin Mini SO 194˚C/WDC Electrical CharacteristicsUnless otherwise specified, all limits guaranteed for TJ= 25˚C, V+= 5V, V−= 0V, VCM=VO=V+/2 and RL>1M. Boldfacelimits apply at the temperature extremes.Symbol Parameter Conditions Typ(Note 5)LMC6482AI LMC6482I LMC6482M UnitsLimit Limit Limit(Note 6) (Note 6) (Note 6)VOSInput Offset Voltage 0.11 0.750 3.0 3.0 mV1.35 3.7 3.8 maxTCVOSInput Offset Voltage 1.0 µV/˚CAverage DriftIBInput Current (Note 13) 0.02 4.0 4.0 10.0 pAmaxIOSInput Offset Current (Note 13) 0.01 2.0 2.0 5.0 pAmaxCINCommon-Mode 3 pFInput CapacitanceRINInput Resistance>10 TeraΩCMRR Common Mode 0V ≤ VCM≤ 15.0V 82 70 65 65 dBminRejection Ratio V+= 15V 67 62 600V ≤ VCM≤ 5.0V 82 70 65 65V+=5V 67 62 60+PSRR Positive Power Supply 5V ≤ V+≤ 15V, V−=0V82706565dBRejection Ratio VO= 2.5V 67 62 60 min−PSRR Negative Power Supply −5V ≤ V−≤ −15V, V+=0V82706565dBRejection Ratio VO= −2.5V 67 62 60 minVCMInput Common-Mode V+= 5V and 15V V−− 0.3 − 0.25 − 0.25 − 0.25 VVoltage Range For CMRR ≥ 50 dB 000maxV++ 0.3V V++ 0.25 V++ 0.25 V++ 0.25 VV+V+V+minAVLarge Signal RL=2kΩ Sourcing 666 140 120 120 V/mVVoltage Gain (Notes 7, 13) 84 72 60 minSinking 75 35 35 35 V/mV20 20 18 minRL= 600Ω Sourcing 300 80 50 50 V/mV(Notes 7, 13) 48 30 25 minSinking 35 20 15 15 V/mV13 10 8 minLMC6482www.national.com 2DC Electrical Characteristics (Continued)Unless otherwise specified, all limits guaranteed for TJ= 25˚C, V+= 5V, V−= 0V, VCM=VO=V+/2 and RL>1M. Boldfacelimits apply at the temperature extremes.Symbol Parameter Conditions Typ(Note 5)LMC6482AI LMC6482I LMC6482M UnitsLimit Limit Limit(Note 6) (Note 6) (Note 6)VOOutput Swing V+= 5V 4.9 4.8 4.8 4.8 VRL=2kΩto V+/2 4.7 4.7 4.7 min0.1 0.18 0.18 0.18 V0.24 0.24 0.24 maxV+= 5V 4.7 4.5 4.5 4.5 VRL= 600Ω to V+/2 4.24 4.24 4.24 min0.3 0.5 0.5 0.5 V0.65 0.65 0.65 maxV+= 15V 14.7 14.4 14.4 14.4 VRL=2kΩto V+/2 14.2 14.2 14.2 min0.16 0.32 0.32 0.32 V0.45 0.45 0.45 maxV+= 15V 14.1 13.4 13.4 13.4 VRL= 600Ω to V+/2 13.0 13.0 13.0 min0.5 1.0 1.0 1.0 V1.3 1.3 1.3 maxISCOutput Short Circuit Sourcing, VO=0V 20161616mACurrent 12 12 10 minV+= 5V Sinking, VO=5V 15111111mA9.5 9.5 8.0 minISCOutput Short Circuit Sourcing, VO=0V 30282828mACurrent 22 22 20 minV+= 15V Sinking, VO= 12V 30 30 30 30 mA(Note 8) 24 24 22 minISSupply Current Both Amplifiers 1.0 1.4 1.4 1.4 mAV+= +5V, VO=V+/2 1.8 1.8 1.9 maxBoth Amplifiers 1.3 1.6 1.6 1.6 mAV+= 15V, VO=V+/21.9 1.9 2.0 maxAC Electrical CharacteristicsUnless otherwise specified, all limits guaranteed for TJ= 25˚C, V+= 5V, V−= 0V, VCM=VO=V+/2, and RL>1M. Boldfacelimits apply at the temperature extremes.Symbol Parameter Conditions Typ(Note 5)LMC6482AI LMC6482I LMC6482M UnitsLimit Limit Limit(Note 6) (Note 6) (Note 6)SR Slew Rate (Note 9) 1.3 1.0 0.9 0.9 V/µs0.7 0.63 0.54 minGBW Gain-Bandwidth Product V+= 15V 1.5 MHzφmPhase Margin 50 DegGmGain Margin 15 dBAmp-to-Amp Isolation (Note 10) 150 dBenInput-Referred F = 1 kHz 37 nV/√HzVoltage Noise Vcm=1VLMC6482www.national.com3AC Electrical Characteristics (Continued)Unless otherwise specified, all limits guaranteed for TJ= 25˚C, V+= 5V, V−= 0V, VCM=VO=V+/2, and RL>1M. Boldfacelimits apply at the temperature extremes.Symbol Parameter Conditions Typ(Note 5)LMC6482AI LMC6482I LMC6482M UnitsLimit Limit Limit(Note 6) (Note 6) (Note 6)inInput-Referred F = 1 kHz 0.03 pA/√HzCurrent NoiseT.H.D. Total Harmonic Distortion F = 10 kHz, AV=−2 %RL=10kΩ,VO= 4.1 VPP0.01F = 10 kHz, AV=−2RL=10kΩ,VO= 8.5 VPP0.01 %V+= 10VDC Electrical CharacteristicsUnless otherwise specified, all limits guaranteed for TJ= 25˚C, V+= 3V, V−= 0V, VCM=VO=V+/2 and RL>1M.Symbol Parameter Conditions Typ(Note