Description
LTC6078/LTC6079 Micropower Precision, Dual/Quad CMOS Rail-to-Rail Input/Output Amplifiers FEATURES ■ ■ ■ DESCRIPTIO ■ ■ ■ ■ ■ ■ ■ Maximum Offset Voltage of 25µV (25°C) Maximum Offset Drift of 0.7µV/°C Maximum Input Bias: 1pA (25°C) 50pA (≤85°C) Micropower: 54µA per Amp 95dB CMRR (Min) 100dB PSRR (Min) Input Noise Voltage Density: 16nV/√Hz Rail-to-Rail Inputs and Outputs 2.7V to 5.5V Operation Voltage LTC6078 Available in 8-Lead MSOP and 10-Lead DFN Packages; LTC6079 Available in 16-Lead SSOP and DFN Packages The LTC®6078/LTC6079 are dual/quad, low offset, low noise operational amplifiers with low power consumption and rail-to-rail input/output swing. Input offset voltage is trimmed to less than 25µV and the CMOS inputs draw less than 50pA of bias current. The low offset drift, excellent CMRR, and high voltage gain make it a good choice for precision signal conditioning. Each amplifier draws only 54µA current on a 3V supply. The micropower, rail-to-rail operation of the LTC6078/LTC6079 is well suited for portable instruments and single supply applications. The LTC6078/LTC6079 are specified on power supply voltages of 3V and 5V from –40 to 125°C. The dual amplifier LTC6078 is available in 8-lead MSOP and 10-lead DFN packages. The quad amplifier LTC6079 is available in 16-lead SSOP and DFN packages. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Patent Pending. www.DataSheet4U.com APPLICATIO S ■ ■ ■ ■ ■ Photodiode Amplifier High Impedance Sensor Amplifier Microvolt Accuracy Threshold Detection Instrumentation Amplifiers Battery Powered Applications TYPICAL APPLICATIO SMT 1/4W 150k 0.1µF OMEGA 5TC-TT-K-30-36 THERMOCOUPLE SMT 1/4W 150k LT1025 5V Thermocouple Signal Conditioner 14 5V NUMBER OF AMPS OUT OF 200 NORMALLY FLOATING + 1/2 LTC6078 LTC6078MS8 VS = 3V 12 VCM = 0.5V TA = 25°C 10 8 6 4 2 0 –11 –9 –7 –5 –3 –1 1 VOS (µV) – 2.49M 1k 40.6µV/°C 100pF 10k 5.6pF OUT = 10mV/°C 0°C TO 500°C ±0.5°C K 60789 TA01a AMPLIFIER PROTECTED TO ±190V, ACCIDENTAL CONTACT U VOS Distribution 3 5 7 9 60789 TA01b U U 60789fa 1 LTC6078/LTC6079 ABSOLUTE (Note 1) AXI U RATI GS Specified Temperature Range (Note 4) LTC6078C, LTC6079C .............................. 0°C to 70°C LTC6078I, LTC6079I ............................ –40°C to 85°C LTC6078H, LTC6079H........................ –40°C to 125°C Junction Temperature DFN Packages ................................................... 125°C All Other Packages ............................................ 150°C Storage Temperature Range DFN Packages .................................... –65°C to 125°C All Other Packages ............................. –65°C to 150°C Lead Temperature (Soldering, 10 Sec) .................. 300°C Total Supply Voltage (V+ to V–) ...................................6V Input Voltage...................................................... V– to V+ Output Short Circuit Duration (Note 2) ............ Indefinite Operating Temperature Range (Note 3) LTC6078C, LTC6079C .......................... –40°C to 85°C LTC6078I, LTC6079I ............................ –40°C to 85°C LTC6078H, LTC6079H........................ –40°C to 125°C (Not Available in DFN Package) PACKAGE/ORDER I FOR ATIO TOP VIEW OUTA –INA +INA V– SHDN_A 1 2 3 4 5 A B 10 V + 9 OUTB 8 –INB 7 +INB 6 SHDN_B OUTA –INA +INA V– 1 2 3 4 TOP VIEW A B DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN TJMAX = 125°C, θJA = 43°C/W UNDERSIDE METAL CONNECTED TO V– MS8 PACKAGE 8-LEAD PLASTIC MSOP TJMAX = 150°C, θJA = 200°C/W TOP VIEW OUTA –INA +INA V + TOP VIEW 16 OUTD OUTA –INA +INA V+ +INB –INB OUTB NC 1 2 3 4 5 6 7 8 B C A D 1 2 3 4 5 6 7 8 B C A D 15 –IND 14 +IND 13 V – +INB –INB OUTB NC 12 +INC 11 –INC 10 OUTC 9 NC DHC PACKAGE 16-LEAD (5mm × 3mm) PLASTIC DFN TJMAX = 125°C, θJA = 43°C/W UNDERSIDE METAL CONNECTED TO V– GN PACKAGE 16-LEAD PLASTIC SSOP TJMAX = 150°C, θJA = 110°C/W Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grades and parametric grades are identified by a label on the shipping container. 60789fa 2 U U W W W U W ORDER PART NUMBER LTC6078CDD LTC6078IDD 8 7 6 5 V+ OUTB –INB +INB DD PART MARKING* LBBB LBBB MS8 PART MARKING* LTAJZ LTAJZ LTAJZ LTAJZ LTAJZ LTAJZ DHC PART MARKING* 6079 6079 GN PART MARKING 6079 6079I 6079H ORDER PART NUMBER LTC6078ACMS8 LTC6078CMS8 LTC6078AIMS8 LTC6078IMS8 LTC6078AHMS8 LTC6078HMS8 ORDER PART NUMBER LTC6079CDHC LTC6079IDHC ORDER PART NUMBER LTC6079CGN LTC6079IGN LTC6079HGN 16 OUTD 15 –IND 14 +IND 13 V – 12 +INC 11 –INC 10 OUTC 9 NC LTC6078/LTC6079 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER VOS Offset Voltage (Note 5) CONDITIONS LTC6078MS8, LTC6078AMS8, LTC6079GN VCM = 0.5V, 2.5V LTC6078DD, LTC6079DHC VCM = 0.5V, 2.5V LTC6078AMS8 VCM = 0.5V LTC6078MS8 VCM = 0.5V LTC6079GN VCM = 0.5V LTC6078DD VCM = 0.5V LTC6079DHC VCM = 0.5V LTC6078AMS8 LTC6078MS8 LTC6078DD, LTC6079GN LTC6079DHC VCM = V+/2 VCM = V+/2 VCM = V+/2 VCM = V+/2 0.1Hz to 10Hz f = 1kHz f = 10kHz The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Test conditions are V+ = 3V, V– = 0V, VCM = 0.5V unless otherwise noted. C, I SUFFIXES MIN TYP ±7 ±7 ±20 ±25 ±30 ±30 ±35 ±0.2 ±0.3 ±0.3 0.2 10 0.1 0.5 1 18 16 0.56 ● H SUFFIX MIN TYP ±7 ±25 ±30 ±35 MAX ±25 ±95 ±135 ±165 UNITS MAX ±25 ±30 ±70 ±97 ±115 ±120 ±150 ±0.7 ±1.1 ±1.4 ±1.8 1 50 25 ● ● ● ● ● ● ● ● ● ● ● μV μV μV μV μV μV μV μV/°C μV/°C μV/°C μV/°C pA pA pA pA µVP-P nV/√Hz nV/√Hz fA/√Hz ΔVOS ⁄ΔT Input Offset Voltage Drift (Note 5) ±0.2 ±0.3 0.2 150 0.1 10 1 18 16 0.56 ±0.7 ±1.1 ±1.4 1 350 100 IB IOS en Input Bias Current (Note 6) Input Offset Current (Note 6) Input Noise Voltage Input Noise Voltage Density in Input Noise Current Density (Note 8) Input Common Mode Range V– Differential Input Capacitance Common Mode Input Capacitance Common Mode Rejection Ratio All Packages LTC6078AMS8 LTC6078AMS8 LTC6078MS8 LTC6078MS8 LTC6079GN LTC6079GN LTC6078DD, LTC6079DHC LTC6078DD, LTC6079DHC VCM = 0V to 3V VCM = 0V to 3V VCM = 0V to 1.7V VCM = 0V to 3V VCM = 0V to 1.7V VCM = 0V to 3V VCM = 0V to 1.7V VCM = 0V to 3V VCM = 0V to 1.7V ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● V+ 10 18 V– 10 18 95 87 91 85 89 84 88 110 103 103 100 102 100 102 V+ V pF pF dB dB dB dB dB dB dB dB dB dB dB mV mV mV CDIFF CCM CMRR 95 87 91 85 89 84 88 83 87 100 97 35 350 110 105 103 102 102 102 102 100 102 120 1 15 150 1 10 100 30 300 PSRR VOUT Power Supply Rejection Ratio VS = 2.7V to 5.5V Output Voltage, High (Referred to V+) Output Voltage, Low (Referred to V–) No Load ISOURCE = 0.2mA ISOURCE = 2mA No Load ISINK = 0.2mA ISINK = 2mA RLOAD = 10k, 0.5V ≤ VOUT ≤ 2.5V Source Sink AV = 1 RL = 100k RL = 10k, CL = 200pF AV = 1, 1V Step 100 97 40 400 120 1 15 150 1 10 100 35 350 mV mV mV dB mA mA V/μs kHz kHz Deg μs 60789fa AVOL ISC SR GBW Φ0 tS Large-Signal Voltage Gain Output Short-Circuit Current Slew Rate Gain-Bandwidth Product (fTEST = 10kHz) Phase Margin Settling Time 0.1% 115 5 7 420 360 130 10 14 0.05 750 66 24 110 4 6 420 320 125 10 14 0.05 750 66 24 ● 3 LTC6078/LTC6079 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER IS Supply Current (per Amplifier) Shutdown Current (per Amplifier) VS Supply Voltage Range Channel Separation Shutdown Logic tON tOFF Turn on Time Turn off Time Leakage of SHDN Pin CONDITIONS No Load ● The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Test conditions are V+ = 3V, V– = 0V, VCM = 0.5V unless otherwise noted. C, I SUFFIXES MIN TYP 54 ● ● H SUFFIX MIN TYP 54 MAX 72 80 UNITS μA μA μA MAX 72 78 1 5.5 Shutdown, VSHDN ≤ 0.8V, LTC6078DD Guaranteed by the PSRR Test fs = 10kHz, RL = 10k SHDN High, LTC6078DD SHDN Low, LTC6078DD VSHDN = 0.8V to 2V, LTC6078DD VSHDN = 2V to 0.8V, LTC6078DD VSHDN = 0V, LTC6078DD 0.3 2.7 –110 2 2.7 –110 2 5.5 V dB V V µs µs μA ● ● 0.8 50 2 0.6 50 2 0.8 The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Test conditions are V+ = 5V, V– = 0V, VCM = 0.5V unless otherwise noted. SYMBOL PARAMETER VOS Offset Voltage CONDITIONS LTC6078MS8, LTC6078AMS8, LTC6079GN VCM = 0.5V LTC6078DD, LTC6079DHC VCM = 0.5V LTC6078AMS8 VCM = 0.5V LTC6078MS8 VCM = 0.5V LTC6079GN VCM = 0.5V LTC6078DD VCM = 0.5V LTC6079DHC VCM = 0.5V LTC6078AMS8 LTC6078MS8 LTC6078DD, LTC6079GN LTC6079DHC VCM = V+/2 VCM = V+/2 VCM = V+/2 VCM = V+/2 0.1Hz to 10Hz f = 1kHz f = 10kHz C, I SUFFIXES MIN TYP ±10 ±10 ±20 ±25 ±30 ±30 ±35 ±0.2 ±0.3 ±0.3 0.2 10 0.1 0.5 1 18 16 0.56 ● H SUFFIX MIN TYP ±10 ±25 ±30 ±35 MAX ±30 ±100 ±140 ±170 UNITS MAX ±30 ±35 ±75 ±102 ±120 ±125 ±155 ±0.7 ±1.1 ±1.4 ±1.8 1 50 25 ● ● ● ● ● ● ● ● ● ● ● μV μV μV μV μV μV μV μV/°C μV/°C μV/°C μV/°C pA pA pA pA µVP-P nV/√Hz nV/√Hz fA/√Hz ΔVOS ⁄ΔT Input Offset Voltage Drift (Note 7) ±0.2 ±0.3 0.2 150 0.1 10 1 18 16 0.56 ±0.7 ±1.1 ±1.4 1 350 100 IB IOS en Input Bias Current Input Offset Current Input Noise Voltage Input Noise Voltage Density in Input Noise Current Density (Note 8) Input Common Mode Range V– Differential Input Capacitance Common Mode Input Capacitance V+ 10 18 V– 10 18 V+ V pF pF CDIFF CCM 60789fa 4 LTC6078/LTC6079 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CMRR Common Mode Rejection Ratio C

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LTC6079

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