LT6011/LT6012 Dual/Quad 135A, 14nV/Hz, Rail-to-Rail Output Precision Op Amp Description Features n n n n n n n n n n 60V Maximum Offset Voltage 300pA Maximum Input Bias Current 135A Supply Current per Amplifier Rail-to-Rail Output Swing 120dB Minimum Voltage Gain, VS = 15V 0.8V/C Maximum VOS Drift 14nV/Hz Input Noise Voltage 2.7V to 18V Supply Voltage Operation Operating Temperature Range: -40C to 85C Space Saving 3mm x 3mm DFN Package The LT(R)6011/LT6012 op amps combine low noise and high precision input performance with low power consumption and rail-to-rail output swing. Input offset voltage is trimmed to less than 60V. The low drift and excellent long-term stability guarantee a high accuracy over temperature and time. The 300pA maximum input bias current and 120dB minimum voltage gain further maintain this precision over operating conditions. The LT6011/LT6012 work on any power supply voltage from 2.7V to 36V and draw only 135A of supply current on a 5V supply. The output swings to within 40mV of either supply rail, making the amplifier a good choice for low voltage single supply applications. Applications n n n n n Thermocouple Amplifiers Precision Photo Diode Amplifiers Instrumentation Amplifiers Battery-Powered Precision Systems Low Voltage Precision Systems The LT6011/LT6012 are specified at 5V and 15V supplies and from -40C to 85C. The LT6011 (dual) is available in SO-8, MS8 and space saving 3mm x 3mm DFN packages. The LT6012 (quad) is available in SO-14 and 16-pin SSOP packages. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical Application Low Power Programmable Output Range 16-Bit SoftSpanTM DAC VS+ 20V Output Step Response LT1236-5 5 6 9 0.1F 14 13 12 11 10 - 7 SUPPLY CURRENT 1.6mA TO 4mA DEPENDING ON CODE 1 16 15 R1 RCOM R2 REF ROFS RFB 3 4 VS+ IOUT1 16-BIT DAC CS/LD SCK SDI SDO 5V/DIV 0V C1 270pF R2 VCC CLR 5V/DIV 0V C2 270pF 2 R1 5V + 1/2 LT6011 5 2 IOUT2 6 3 AGND LTC1592 GND 7 8 - 8 1/2 LT6011 + 1 VOUT 100s/DIV 6011 TA01b 4 VS- 6011 TA01 60112fc 1 LT6011/LT6012 Absolute Maximum Ratings (Note 1) Total Supply Voltage (V+ to V-)..................................40V Differential Input Voltage (Note 2).............................10V Input Voltage....................................................... V+ to V- Input Current (Note 2)........................................... 10mA Output Short-Circuit Duration (Note 3)............. Indefinite Operating Temperature Range (Note 4)....-40C to 85C Specified Temperature Range (Note 5).....-40C to 85C Maximum Junction Temperature........................... 150C Storage Temperature Range................... -65C to 150C Lead Temperature (Soldering, 10 sec).................... 300C Package/Order Information TOP VIEW +IN A 3 V- 4 OUT A 1 8 V+ 6 -IN B -IN A 2 7 OUT B 5 +IN B +IN A 3 6 -IN B 5 +IN B 7 OUT B A B V- 4 DD PACKAGE 8-LEAD (3mm x 3mm) PLASTIC DFN A B TOP VIEW OUT A -IN A +IN A V- TJMAX = 150C, JA = 43C/W UNDERSIDE METAL CONNECTED TO V- (PCB CONNECTION OPTIONAL) 14 OUT D + - +IN A 3 D V+ 4 +IN B 5 -IN B 6 OUT B 7 13 -IN D 12 +IN D 11 V- + -B B V+ OUT B -IN B +IN B TJMAX = 150C, JA = 220C/W TOP VIEW OUT A 1 - A + A 8 7 6 5 TJMAX = 150C, JA = 190C/W TOP VIEW -IN A 2 1 2 3 4 MS8 PACKAGE 8-LEAD PLASTIC MSOP S8 PACKAGE 8-LEAD PLASTIC SO + 10 +IN C - 9 -IN C C 8 OUT C S PACKAGE 14-LEAD PLASTIC SO TJMAX = 150C, JA = 110C/W OUT A 1 -IN A 2 +IN A 3 16 OUT D - A + V+ 4 +IN B 5 -IN B 6 OUT B 7 NC 8 + - -IN A 2 TOP VIEW 8 V+ OUT A 1 D 15 -IN D 14 +IN D 13 V- + -B + 12 +IN C C- 11 -IN C 10 OUT C 9 NC GN PACKAGE 16-LEAD PLASTIC SSOP TJMAX = 150C, JA = 135C/W 60112fc 2 LT6011/LT6012 Order Information LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT6011CDD#PBF LT6011CDD#TRPBF LACD 8-Lead (3mm x 3mm) Plastic DFN 0C to 70C LT6011IDD#PBF LT6011IDD#TRPBF LACD 8-Lead (3mm x 3mm) Plastic DFN -40C to 85C LT6011ACDD#PBF LT6011ACDD#TRPBF LACD 8-Lead (3mm x 3mm) Plastic DFN 0C to 70C LT6011AIDD#PBF LT6011AIDD#TRPBF LACD 8-Lead (3mm x 3mm) Plastic DFN -40C to 85C LT6011CS8#PBF LT6011CS8#TRPBF 6011 8-Lead Plastic SO 0C to 70C LT6011IS8#PBF LT6011IS8#TRPBF 6011I 8-Lead Plastic SO -40C to 85C LT6011ACS8#PBF LT6011ACS8#TRPBF 6011A 8-Lead Plastic SO 0C to 70C LT6011AIS8#PBF LT6011AIS8#TRPBF 6011AI 8-Lead Plastic SO -40C to 85C LT6011CMS8#PBF LT6011CMS8#TRPBF LTCGC 8-Lead Plastic MSOP 0C to 70C LT6011IMS8#PBF LT6011IMS8#TRPBF LTCGC 8-Lead Plastic MSOP -40C to 85C LT6012CS#PBF LT6012CS#TRPBF LT6012CS 14-Lead Plastic SO 0C to 70C LT6012IS#PBF LT6012IS#TRPBF LT6012IS 14-Lead Plastic SO -40C to 85C LT6012ACS#PBF LT6012ACS#TRPBF LT6012ACS 14-Lead Plastic SO 0C to 70C LT6012AIS#PBF LT6012AIS#TRPBF LT6012AIS 14-Lead Plastic SO -40C to 85C LT6012CGN#PBF LT6012CGN#TRPBF 6012 16-Lead Plastic SSOP 0C to 70C LT6012IGN#PBF LT6012IGN#TRPBF 6012I 16-Lead Plastic SSOP -40C to 85C LT6012ACGN#PBF LT6012ACGN#TRPBF 6012A 16-Lead Plastic SSOP 0C to 70C LT6012AIGN#PBF LT6012AIGN#TRPBF 6012AI 16-Lead Plastic SSOP -40C to 85C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ 60112fc 3 LT6011/LT6012 Electrical Characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. VS = 5V, 0V; VCM = 2.5V; RL to 0V; unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage (Note 8) LT6011AS8, LT6012AS TA = 0C to 70C TA = -40C to 85C l l LT6011ADD, LT6012AGN TA = 0C to 70C TA = -40C to 85C l l LT6011S8, LT6012S TA = 0C to 70C TA = -40C to 85C l l LT6011DD, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C l l VOS/T IOS IB Input Offset Voltage Drift (Note 6) Input Offset Current (Note 8) Input Bias Current (Note 8) LT6011AS8, LT6011S8, LT6012AS,LT6012S LT6011ADD,LT6011DD, LT6012AGN, LT6012GN, LT6011MS8 MIN TYP MAX UNITS 20 60 85 110 V V V 25 85 135 170 V V V 25 75 100 125 V V V 30 125 175 210 V V V l 0.2 0.8 V/C l 0.2 1.2 V/C 20 300 450 600 pA pA pA 150 900 1200 1500 pA pA pA 20 300 450 600 pA pA pA 150 900 1200 1500 pA pA pA LT6011AS8, LT6011ADD, LT6012AS, LT6012AGN TA = 0C to 70C TA = -40C to 85C l l LT6011S8, LT6011DD, LT6012S, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C l l LT6011AS8, LT6011ADD, LT6012AS, LT6012AGN TA = 0C to 70C TA = -40C to 85C l l LT6011S8, LT6011DD, LT6012S, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C l l Input Noise Voltage 0.1Hz to 10Hz 400 en Input Noise Voltage Density f = 1kHz 14 nV/Hz in Input Noise Current Density f = 1kHz, Unbalanced Source Resistance 0.1 pA/Hz RIN Input Resistance Common Mode, VCM = 1V to 3.8V Differential 120 20 G M CIN Input Capacitance 4 pF VCM Input Voltage Range (Positive) Input Voltage Range (Negative) Guaranteed by CMRR Guaranteed by CMRR l l 3.8 4 0.7 CMRR Common Mode Rejection Ratio VCM = 1V to 3.8V l 107 135 Minimum Supply Voltage Guaranteed by PSRR l PSRR Power Supply Rejection Ratio VS = 2.7V to 36V, VCM = 1/2VS l 112 135 dB AVOL Large-Signal Voltage Gain RL = 10k, VOUT = 1V to 4V RL = 2k, VOUT = 1V to 4V l l 300 250 2000 2000 V/mV V/mV Channel Separation VOUT = 1V to 4V l 110 140 dB 10 2.4 nVP-P 1 V V dB 2.7 V 60112fc 4 LT6011/LT6012 Electrical Characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. VS = 5V, 0V; VCM = 2.5V; RL to 0V; unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS VOUT Maximum Output Swing (Positive, Referred to V+) No Load, 50mV Overdrive MIN TYP MAX 35 55 65 mV mV 120 170 220 mV mV 40 55 65 mV mV 150 225 275 mV mV l ISOURCE = 1mA, 50mV Overdrive l Maximum Output Swing (Negative, Referred to 0V) No Load, 50mV Overdrive l ISINK = 1mA, 50mV Overdrive l ISC Output Short-Circuit Current (Note 3) VOUT = 0V, 1V Overdrive, Source 10 4 14 l mA mA 10 4 21 l mA mA 0.06 0.05 0.04 0.09 l l V/s V/s V/s 250 225 330 l kHz kHz 45 s VOUT = 5V, -1V Overdrive, Sink SR GBW Slew Rate Gain Bandwidth Product AV = -10, RF = 50k, RG = 5k TA = 0C to 70C TA = -40C to 85C UNITS f = 10kHz ts Settling Time AV = -1, 0.01%, VOUT = 1.5V to 3.5V tr , tf Rise Time, Fall Time AV = 1, 10% to 90%, 0.1V Step 1 VOS Offset Voltage Match (Note 7) LT6011AS8, LT6012AS TA = 0C to 70C TA = -40C to 85C 50 l l 120 170 220 V V V LT6011ADD, LT6012AGN TA = 0C to 70C TA = -40C to 85C 50 l l 170 270 340 V V V LT6011S8, LT6012S TA = 0C to 70C TA = -40C to 85C 50 l l 150 200 250 V V V LT6011DD, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C 60 l l 250 350 420 V V V LT6011AS8, LT6011ADD, LT6012AS, LT6012AGN TA = 0C to 70C TA = -40C to 85C 50 l l 600 900 1200 pA pA pA LT6011S8, LT6011DD, LT6012S, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C l l 1800 2400 3000 pA pA pA IB Input Bias Current Match (Note 7) s CMRR Common Mode Rejection Ratio Match (Note 7) l 101 135 dB PSRR Power Supply Rejection Ratio Match (Note 7) l 106 135 dB IS Supply Current per Amplifier TA = 0C to 70C TA = -40C to 85C 135 l l 150 190 210 A A A 60112fc 5 LT6011/LT6012 Electrical Characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. VS = 15V, VCM = 0V; RL to 0V; unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage (Note 8) LT6011AS8, LT6012AS TA = 0C to 70C TA = -40C to 85C MIN l l LT6011ADD, LT6012AGN TA = 0C to 70C TA = -40C to 85C l l LT6011S8, LT6012S TA = 0C to 70C TA = -40C to 85C l l LT6011DD, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C l l VOS/T Input Offset Voltage Drift (Note 6) LT6011AS8, LT6011S8, LT6012AS, LT6012S LT6011ADD, LT6011DD, LT6012AGN, LT6012GN, LT6011MS8 l l IOS Input Offset Current (Note 8) LT6011AS8, LT6011ADD, LT6012AS LT6012AGN TA = 0C to 70C TA = -40C to 85C l l LT6011S8, LT6011DD, LT6012S, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C l l LT6011AS8, LT6011ADD, LT6012AS, LT6012AGN TA = 0C to 70C TA = -40C to 85C l l LT6011S8, LT6011DD, LT6012S, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C l l IB Input Bias Current (Note 8) TYP MAX UNITS 30 135 160 185 V V V 35 160 210 225 V V V 35 150 175 200 V V V 40 200 250 275 V V V 0.2 0.2 0.8 1.3 V/C V/C 20 300 450 600 pA pA pA 150 900 1200 1500 pA pA pA 20 300 450 600 pA pA pA 150 900 1200 1500 pA pA pA Input Noise Voltage 0.1Hz to 10Hz 400 nVP-P en Input Noise Voltage Density f = 1kHz 13 nV/Hz in Input Noise Current Density f = 1kHz, Unbalanced Source Resistance RIN Input Resistance Common Mode, VCM = 13.5V Differential CIN Input Capacitance VCM Input Voltage Range CMRR Common Mode Rejection Ratio VCM = -13.5V to 13.5V Guaranteed by CMRR 50 0.1 pA/Hz 400 20 G M 4 pF l 13.5 14 V l 115 112 135 135 dB dB Minimum Supply Voltage Guaranteed by PSRR l PSRR Power Supply Rejection Ratio VS = 1.35V to 18V l 112 135 dB AVOL Large-Signal Voltage Gain RL = 10k, VOUT = -13.5V to 13.5V 2000 l 1000 600 V/mV V/mV 500 300 1500 l V/mV V/mV l 120 140 dB RL = 5k, VOUT = -13.5V to 13.5V VOUT Channel Separation VOUT = -13.5V to 13.5V Maximum Output Swing (Positive, Referred to V+) No Load, 50mV Overdrive 1.2 80 100 mV mV 140 195 240 mV mV 45 80 100 mV mV 150 250 300 mV mV l Maximum Output Swing (Negative, Referred to V-) No Load, 50mV Overdrive l ISINK = 1mA, 50mV Overdrive l V 45 l ISOURCE = 1mA, 50mV Overdrive 1.35 60112fc 6 LT6011/LT6012 Electrical Characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. VS = 15V, VCM = 0V; RL to 0V; unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS ISC Output Short-Circuit Current (Note 3) VOUT = 0V, 1V Overdrive (Source) MIN TYP 15 l 10 5 mA mA 10 5 20 l mA mA 0.08 0.07 0.05 0.11 l l V/s V/s V/s 275 250 350 l kHz kHz VOUT = 0V, -1V Overdrive (Sink) SR GBW Slew Rate Gain Bandwidth Product AV = -10, RF = 50k, RG = 5k TA = 0C to 70C TA = -40C to 85C f = 10kHz MAX UNITS ts Settling Time AV = -1, 0.01%, VOUT = 0V to 10V 85 s tr , tf Rise Time, Fall Time AV = 1, 10% to 90%, 0.1V Step 1 s VOS Offset Voltage Match (Note 7) LT6011AS8, LT6012AS TA = 0C to 70C TA = -40C to 85C l l LT6011ADD, LT6012AGN TA = 0C to 70C TA = -40C to 85C l l LT6011S8, LT6012S TA = 0C to 70C TA = -40C to 85C l l LT6011DD, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C l l LT6011AS8, LT6011ADD, LT6012AS, LT6012AGN TA = 0C to 70C TA = -40C to 85C LT6011S8, LT6011DD, LT6012S, LT6012GN, LT6011MS8 TA = 0C to 70C TA = -40C to 85C IB Input Bias Current Match (Note 7) 50 270 320 370 V V V 50 320 420 450 V V V 70 300 350 400 V V V 80 400 500 550 V V V 50 l l 600 900 1200 pA pA pA l l 1800 2400 3000 pA pA pA CMRR Common Mode Rejection Ratio Match (Note 7) l 109 135 dB PSRR Power Supply Rejection Ratio Match (Note 7) l 106 135 dB IS Supply Current per Amplifier TA = 0C to 70C TA = -40C to 85C Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The inputs are protected by back-to-back diodes and internal series resistors. If the differential input voltage exceeds 10V, the input current must be limited to less than 10mA. Note 3: A heat sink may be required to keep the junction temperature below absolute maximum ratings. Note 4: Both the LT6011C/LT6012C and LT6011I/LT6012I are guaranteed functional over the operating temperature range of -40C to 85C. Note 5: The LT6011C/LT6012C are guaranteed to meet the specified performance from 0C to 70C and is designed, characterized and expected to meet specified performance from -40C to 85C but is not tested or QA sampled at these temperatures. The LT6011I/LT6012I are guaranteed to meet specified performance from -40C to 85C. 260 l l 330 380 400 A A A Note 6: This parameter is not 100% tested. Note 7: Matching parameters are the difference between any two amplifiers. CMRR and PSRR are defined as follows: (1) CMRR and PSRR are measured in V/V for the individual amplifiers. (2) The difference between matching amplifiers is calculated in V/V. (3) The result is converted to dB. Note 8: The specifications for VOS, IB, and IOS depend on the grade and on the package. The following table clarifies the notations. S8 Package DFN Package S14 Package GN16 Package MS8 Package STANDARD GRADE LT6011S8 LT6011DD LT6012S LT6012GN LT6011MS8 A GRADE LT6011AS8 LT6011ADD LT6012AS LT6012AGN N/A 60112fc 7 LT6011/LT6012 Typical Performance Characteristics Input Offset Voltage vs Temperature Distribution of Input Offset Voltage 30 10 OFFSET VOLTAGE (V) 15 50 25 0 -25 -50 -75 5 -125 -50 90 50 25 0 75 TEMPERATURE (C) -25 Distribution of Input Bias Current 1600 15 10 5 0 -400 -300 -200 -100 0 100 200 300 400 INPUT BIAS CURRENT (pA) 1000 800 600 400 200 IB- -200 -50 IB+ -25 0 25 50 75 TEMPERATURE (C) TA = -40C 100 0 TA = 25C -100 -200 -15 125 13.9V TA = 85C -14.2V -5 0 5 10 -10 COMMON MODE VOLTAGE (V) VOLTAGE NOISE 1000 0.1Hz to 10Hz Noise VS = 15V TA = 25C VS = 5V, 0V TA = 25C f = 1kHz 1 UNBALANCED SOURCE RESISTORS NOISE VOLTAGE (0.2V/DIV) TOTAL INPUT NOISE (V/Hz) 100 0.1 TOTAL NOISE 0.01 RESISTOR NOISE ONLY 0.001 0.0001 100 1k 15 1635 G06 10 1000 INPUT CURRENT NOISE DENSITY (fA/Hz) INPUT VOLTAGE NOISE DENSITY (nV/Hz) 200 Total Input Noise vs Source Resistance 6011 G07 VS = 15V TYPICAL PART 6011 G05 CURRENT NOISE UNBALANCED SOURCE RESISTORS 10 100 FREQUENCY (Hz) 100 15 Input Bias Current vs Input Common Mode Voltage 300 6011 G04 100 5 0 10 -10 -5 INPUT COMMON MODE VOLTAGE (V) 6011 G03 1200 0 VS = 15V TA = 25C TA = 25C 20 -20 -15 125 INPUT BIAS CURRENT (pA) INPUT BIAS CURRENT (pA) PERCENT OF UNITS (%) 20 1 100 VS = 5V, 0V TYPICAL PART 1400 en, in vs Frequency TA = -40C 40 Input Bias Current vs Temperature LT6011A, LT6012A VS = 5V, 0V TA = 25C TA = 85C 60 6011 G02 6011 G01 25 80 0 -100 0 -90 -70 -50 -30 -10 10 30 50 70 INPUT OFFSET VOLTAGE (V) VS = 15V TYPICAL PART 100 75 20 10 120 VS = 5V, 0V REPRESENTATIVE UNITS 100 OFFSET VOLTAGE (V) PERCENT OF UNITS (%) 25 125 LT6011S8, LT6012S VS = 5V, 0V TA = 25C Offset Voltage vs Input Common Mode Voltage 10k 100k 1M 10M SOURCE RESISTANCE () 100M 6011 G08 0 1 2 3 4 5 6 TIME (SEC) 7 8 9 10 6011 G09 60112fc 8 LT6011/LT6012 Typical Performance Characteristics V+ NOISE VOLTAGE (0.2V/DIV) OUTPUT VOLTAGE SWING (mV) VS = 15V TA = 25C Output Saturation Voltage vs Load Current (Output High) VS = 5V, 0V NO LOAD -20 -40 OUTPUT HIGH -60 60 OUTPUT LOW 40 20 V- -50 10 20 30 40 50 60 70 80 90 100 TIME (SEC) -25 0 50 75 25 TEMPERATURE (C) 100 6011 G10 TA = 25C 0.1 TA = -40C 0.01 0.01 125 0.1 TA = -40C 350 TA = 85C 300 TA = 25C 250 10 Warm-Up Drift 3 400 TA = 25C 0.1 1 LOAD CURRENT (mA) 6011 G12 PER AMPLIFIER 450 SUPPLY CURRENT (A) 200 TA = -40C 150 100 15V 2 2.5V 1 50 0.1 1 LOAD CURRENT (mA) 0 10 0 2 4 6011 G13 1 THD + NOISE (%) 1 0.1 0.01 AV = -1 AV = 1 0.001 0.0001 10 100 1k 10k FREQUENCY (Hz) Settling Time vs Output Step 10 VS = 15V VIN = 20VP-P TA = 25C AV = -1 AV = 1 6011 G16 0.0001 10 6 0.1% 0.01% 4 2 0.001 100k VS = 15V AV = 1 8 0.1 0.01 150 6011 G15 THD + Noise vs Frequency 10 VS = 5V, 0V VOUT = 2VP-P TA = 25C AV = 1: RL = 10k AV = -1: RF = RG = 10k 30 60 90 120 TIME AFTER POWER-ON (SECONDS) 6011 G14 THD + Noise vs Frequency 10 0 6 8 10 12 14 16 18 20 SUPPLY VOLTAGE (V) OUTPUT STEP (V) OUTPUT LOW SATURATION VOLTAGE (V) VS = 5V, 0V 0.01 0.01 THD + NOISE (%) TA = 85C Supply Current vs Supply Voltage 500 TA = 85C VS = 5V, 0V 6011 G11 Output Saturation Voltage vs Load Current (Output Low) 1 1 CHANGE IN OFFSET VOLTAGE (V) 0 Output Voltage Swing vs Temperature OUTPUT HIGH SATURATION VOLTAGE (V) 0.01Hz to 1Hz Noise 100 1k FREQUENCY (Hz) 10k 6011 G17 0 0 10 20 30 40 50 60 70 SETTLING TIME (s) 80 90 6011 G18 60112fc 9 LT6011/LT6012 Typical Performance Characteristics Channel Separation vs Frequency 160 VS = 15V AV = -1 CHANNEL SEPARATION (dB) 0.1% 4 0.01% 2 120 100 80 60 40 20 0 10 30 40 50 60 70 SETTLING TIME (s) 20 80 0 90 1 10 100 1k 10k FREQUENCY (Hz) 100k PSRR vs Frequency 100 80 +PSRR 60 -PSRR 20 1 10 100 1k 10k 100k FREQUENCY (Hz) AV = 100 1 AV = 10 0.1 10 1 0 -200 -10 -20 -240 -30 -40 1k 10k 100k 1M FREQUENCY (Hz) -280 10M 6011 G25 10 5 -120 -160 PHASE 10 -80 100k 100 1k 10k FREQUENCY (Hz) 100k VS = 5V, 0V TA = 25C RL = 10k 60 40 20 0 -40 0.01 0.1 1M 1 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) 6011 G24 Gain vs Frequency, AV = -1 10 5 CL = 500pF CL = 50pF CL = 50pF -10 -15 -15 10k 100k FREQUENCY (Hz) CL = 500pF -5 -10 1k VS = 5V, 0V TA = 25C 0 -5 -20 1M -20 VS = 5V, 0V TA = 25C 0 GAIN (dB) OPEN-LOOP GAIN (dB) 20 100 1k 10k FREQUENCY (Hz) 10 80 Gain vs Frequency, AV = 1 GAIN 1 6011 G23 PHASE SHIFT (DEG) 30 20 100 10 0.01 1M VS = 5V, 0V TA = 25C RL = 10k 40 40 120 100 Gain and Phase vs Frequency 50 60 Open-Loop Gain vs Frequency VS = 5V, 0V TA = 25C 6011 G22 60 VS = 5V, 0V 140 AV = 1 0.1 VS = 15V 80 6011 G21 OPEN-LOOP GAIN (dB) OUTPUT IMPEDANCE () POWER SUPPLY REJECTION RATIO (dB) 120 0 100 Output Impedance vs Frequency 1000 VS = 5V, 0V TA = 25C 40 120 6011 G20 6011 G19 140 TA = 25C 140 0 1M GAIN (dB) OUTPUT STEP (V) 6 0 VS = 5V, 0V TA = 25C 140 8 CMRR vs Frequency 160 COMMON MODE REJECTION RATIO (dB) Settling Time vs Output Step 10 1M 6011 G26 -20 1k 10k 100k FREQUENCY (Hz) 1M 6011 G27 60112fc 10 LT6011/LT6012 Typical Performance Characteristics Large-Signal Transient Response Small-Signal Transient Response Rail-to-Rail Output Swing 5V 2V/DIV 20mV/DIV 0V 1V/DIV 0V AV = 1 2s/DIV 6011 G28 AV = -1 VS = 15V 50s/DIV 6011 G29 AV = -1 VS = 5V, 0V 100s/DIV 6011 G30 Applications Information Preserving Input Precision Input Protection Preserving the input accuracy of the LT6011/LT6012 requires that the applications circuit and PC board layout do not introduce errors comparable to or greater than the 25V typical offset of the amplifiers. Temperature differentials across the input connections can generate thermocouple voltages of 10's of microvolts so the connections to the input leads should be short, close together and away from heat dissipating components. Air currents across the board can also generate temperature differentials. The LT6011/LT6012 feature on-chip back-to-back diodes between the input devices, along with 500 resistors in series with either input. This internal protection limits the input current to approximately 10mA (the maximum allowed) for a 10V differential input voltage. Use additional external series resistors to limit the input current to 10mA in applications where differential inputs of more than 10V are expected. For example, a 1k resistor in series with each input provides protection against 30V differential voltage. The extremely low input bias currents (20pA typical) allow high accuracy to be maintained with high impedance sources and feedback resistors. The LT6011/LT6012 low input bias currents are obtained by a cancellation circuit on-chip. This causes the resulting IB+ and IB- to be uncorrelated, as implied by the IOS specification being comparable to IB. Do not try to balance the input resistances in each input lead; instead keep the resistance at either input as low as possible for maximum accuracy. The LT6011/LT6012 output is able to swing close to each power supply rail (rail-to-rail out), but the input stage is limited to operating between V- + 1V and V+ - 1.2V. Exceeding this common mode range will cause the gain to drop to zero, however, no phase reversal will occur. Leakage currents on the PC board can be higher than the input bias current. For example, 10G of leakage between a 15V supply lead and an input lead will generate 1.5nA! Surround the input leads with a guard ring driven to the same potential as the input common mode to avoid excessive leakage in high impedance applications. The LT6011/LT6012 amplifier contributes negligible noise to the system when driven by sensors (sources) with impedance between 20k and 1M. Throughout this range, total input noise is dominated by the 4kTRS noise of the source. If the source impedance is less than 20k, the input voltage noise of the amplifier starts to contribute Input Common Mode Range Total Input Noise 60112fc 11 LT6011/LT6012 Applications Information with a minimum noise of 14nV/Hz for very low source impedance. If the source impedance is more than 1M, the input current noise of the amplifier, multiplied by this high impedance, starts to contribute and eventually dominate. Total input noise spectral density can be calculated as: vn(TOTAL) = en2 + 4kTRS + (in RS )2 where en = 14nV/Hz , in = 0.1pA/Hz and RS is the total impedance at the input, including the source impedance. Capacitive Loads The LT6011/LT6012 can drive capacitive loads up to 500pF in unity gain. The capacitive load driving capability increases as the amplifier is used in higher gain configurations. + VREF VIN RG A small series resistance between the output and the load further increases the amount of capacitance that the amplifier can drive. Rail-to-Rail Operation The LT6011/LT6012 outputs can swing to within millivolts of either supply rail, but the inputs can not. However, for most op amp configurations, the inputs need to swing less than the outputs. Figure 1 shows the basic op amp configurations, lists what happens to the op amp inputs and specifies whether or not the op amp must have railto-rail inputs. Select a rail-to-rail input op amp only when really necessary, because the input precision specifications are usually inferior. + VIN - VIN - RF + - RF 6011 F01 RG VREF INVERTING: AV = -RF/RG OP AMP INPUTS DO NOT MOVE, BUT ARE FIXED AT DC BIAS POINT VREF NONINVERTING: AV = 1 + RF/RG INPUTS MOVE BY AS MUCH AS VIN, BUT THE OUTPUT MOVES MORE INPUT DOES NOT HAVE TO BE RAIL-TO-RAIL INPUT MAY NOT HAVE TO BE RAIL-TO-RAIL NONINVERTING: AV = 1 INPUTS MOVE BY AS MUCH AS OUTPUT INPUT MUST BE RAIL-TO-RAIL FOR OVERALL CIRCUIT RAIL-TO-RAIL PERFORMANCE Figure 1. Some Op Amp Configurations Do Not Require Rail-to-Rail Inputs to Achieve Rail-to-Rail Outputs 60112fc 12 LT6011/LT6012 Simplified Schematic (One Amplifier) V+ R3 R4 R6 R5 Q7 Q18 Q6 Q8 Q4 Q3 -IN D1 R2 500 Q22 Q12 Q1 Q2 D5 Q14 Q17 C B A D2 OUT D4 C3 Q20 Q11 Q15 V- Q13 D3 Q16 R1 500 C1 C2 Q21 B A +IN RC1 Q5 Q19 Q9 Q10 6011 SS 60112fc 13 LT6011/LT6012 Package Description Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. DD Package 8-Lead Plastic DFN (3mm x 3mm) (Reference LTC DWG # 05-08-1698 Rev C) 0.70 0.05 3.5 0.05 1.65 0.05 2.10 0.05 (2 SIDES) PACKAGE OUTLINE 0.25 0.05 0.50 BSC 2.38 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED PIN 1 TOP MARK (NOTE 6) 0.200 REF 3.00 0.10 (4 SIDES) R = 0.125 TYP 5 0.40 0.10 8 1.65 0.10 (2 SIDES) 0.75 0.05 4 0.25 0.05 1 (DD8) DFN 0509 REV C 0.50 BSC 2.38 0.10 0.00 - 0.05 BOTTOM VIEW--EXPOSED PAD NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1) 2. DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON TOP AND BOTTOM OF PACKAGE 60112fc 14 LT6011/LT6012 Package Description Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .050 BSC .189 - .197 (4.801 - 5.004) NOTE 3 .045 .005 8 .245 MIN .160 .005 .010 - .020 x 45 (0.254 - 0.508) NOTE: 1. DIMENSIONS IN 5 .150 - .157 (3.810 - 3.988) NOTE 3 1 RECOMMENDED SOLDER PAD LAYOUT .053 - .069 (1.346 - 1.752) 0- 8 TYP .016 - .050 (0.406 - 1.270) 6 .228 - .244 (5.791 - 6.197) .030 .005 TYP .008 - .010 (0.203 - 0.254) 7 .014 - .019 (0.355 - 0.483) TYP INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) 2 3 4 .004 - .010 (0.101 - 0.254) .050 (1.270) BSC SO8 0303 60112fc 15 LT6011/LT6012 Package Description Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. MS8 Package 8-Lead Plastic MSOP (Reference LTC DWG # 05-08-1660 Rev F) 3.00 0.102 (.118 .004) (NOTE 3) 0.889 0.127 (.035 .005) 5.23 (.206) MIN 0.254 (.010) 7 6 5 0.52 (.0205) REF 3.00 0.102 (.118 .004) (NOTE 4) 4.90 0.152 (.193 .006) DETAIL "A" 0 - 6 TYP GAUGE PLANE 3.20 - 3.45 (.126 - .136) 0.53 0.152 (.021 .006) DETAIL "A" 0.42 0.038 (.0165 .0015) TYP 8 0.65 (.0256) BSC 1 1.10 (.043) MAX 2 3 4 0.86 (.034) REF 0.18 (.007) RECOMMENDED SOLDER PAD LAYOUT NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX SEATING PLANE 0.22 - 0.38 (.009 - .015) TYP 0.65 (.0256) BSC 0.1016 0.0508 (.004 .002) MSOP (MS8) 0307 REV F 60112fc 16 LT6011/LT6012 Package Description Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. S14 Package 14-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .337 - .344 (8.560 - 8.738) NOTE 3 .045 .005 .050 BSC 14 N 12 11 10 9 8 N .245 MIN .160 .005 .228 - .244 (5.791 - 6.197) 1 .030 .005 TYP 13 2 3 N/2 N/2 RECOMMENDED SOLDER PAD LAYOUT .010 - .020 x 45 (0.254 - 0.508) .008 - .010 (0.203 - 0.254) 1 2 3 4 5 .053 - .069 (1.346 - 1.752) NOTE: 1. DIMENSIONS IN .014 - .019 (0.355 - 0.483) TYP INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) 7 .004 - .010 (0.101 - 0.254) 0 - 8 TYP .016 - .050 (0.406 - 1.270) 6 .150 - .157 (3.810 - 3.988) NOTE 3 .050 (1.270) BSC S14 0502 60112fc 17 LT6011/LT6012 Package Description Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. GN Package 16-Lead Plastic SSOP (Narrow .150 Inch) (Reference LTC DWG # 05-08-1641) .189 - .196* (4.801 - 4.978) .045 .005 16 15 14 13 12 11 10 9 .254 MIN .009 (0.229) REF .150 - .165 .229 - .244 (5.817 - 6.198) .0165 .0015 .150 - .157** (3.810 - 3.988) .0250 BSC RECOMMENDED SOLDER PAD LAYOUT 1 .015 .004 x 45 (0.38 0.10) .007 - .0098 (0.178 - 0.249) .0532 - .0688 (1.35 - 1.75) 2 3 4 5 6 7 8 .004 - .0098 (0.102 - 0.249) 0 - 8 TYP .016 - .050 (0.406 - 1.270) NOTE: 1. CONTROLLING DIMENSION: INCHES INCHES 2. DIMENSIONS ARE IN (MILLIMETERS) .008 - .012 (0.203 - 0.305) TYP .0250 (0.635) BSC GN16 (SSOP) 0204 3. DRAWING NOT TO SCALE *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 60112fc 18 LT6011/LT6012 Revision History (Revision history begins at Rev C) REV DATE DESCRIPTION C 01/12 Removed specific package information from the Absolute Maximum Ratings section. PAGE NUMBER 2 Added a new Typical Application drawing. 20 60112fc Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 19 LT6011/LT6012 Typical Application Low Power Hall Sensor Amplifier VS HALL ELEMENT ASAHI-KASEI HW-108A (RANK D) www.asahi-kasei.co.jp VS 4 LT1790-1.25 1, 2 6 1 2 400 x4 + 100k 1% 2 - VOUT 49.9k 4 3 6 - 1 1/2 LT6011 1k LT1782 VS = 3V TO 18V IS = ~600A VOUT = ~40mV/mT 8 + 49.9k 10k OFFSET VS ADJUST 7.87k 1% 3 26.7k 1% 5 - 7 1/2 LT6011 + 4 6011 TA02 Buffering an 18-Bit 1Msps SAR ADC 15V LTC6655-5 15V 5V + + 1/2 LT6011 0V - 10VP-P DIFFERENTIAL 47F 49 10nF IN+ 2.5V REF VDD LTC2378-18 5V - 0V 10nF + 1/2 LT6011 49 - 18-BIT 1Msps IN- 6011 TA03 INL = 1LSB AT 18-BITS SNR = 100dB THD = -107dB AT 750Hz -15V NOTE: SUPPLIES AS LOW AS -1V, 7V PROVIDES ENOUGH HEADROOM FOR FULL-SCALE OPERATION. Related Parts PART NUMBER DESCRIPTION COMMENTS LT1112/LT1114 Dual/Quad Low Power, Picoamp Input Precision Op Amp 250pA Input Bias Current LT1880 Rail-to-Rail Output, Picoamp Input Precision Op Amp SOT-23 LT1881/LT1882 Dual/Quad Rail-to-Rail Output, Picoamp Input Precision Op Amp CLOAD Up to 1000pF LT1884/LT1885 Dual/Quad Rail-to-Rail Output, Picoamp Input Precision Op Amp 9.5nV/Hz Input Noise LT1991/LT1996 Precision, 100A Gain-Selectable Amplifier LT6011-Like Op Amp with 0.04% Matched Resistors LT6010 Single 135A, 14nV/Hz Rail-to-Rail Output Precision Op Amp 35V Maximum VOS; 100pA Maximum IB; Shutdown LT6013/LT6014 Single/Dual 145A, 9.5nV/Hz, Rail-to-Rail Output Precision Op Amp AV 5 Stable; 1.4MHz GBW 60112fc 20 Linear Technology Corporation LT 0112 REV C * PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 www.linear.com LINEAR TECHNOLOGY CORPORATION 2003