LT6013AIS8

LT6013 LINER

Document overview

• Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 16

Technical content

Single/Dual 145µA, 9.5nV/√Hz, AV ≥5, Rail-to-Rail Output Precision Op Amps APPLICATIO SU

FEATURES

n Precision Photodiode Amplifiers n Instrumentation Amplifiers n Battery-Powered Precision Systems n Low-Voltage Precision Systems n Micro-Power Sensor Interface n 35µV Maximum Offset Voltage (LT6013A) n Low 1/f Noise: 200nV P-P (0.1Hz to 10Hz) 40nVRMS (0.1Hz to 10Hz) n Low White Noise: 9.5nV/√Hz (1kHz) n Rail-to-Rail Output Swing n 145µA Supply Current per Amplifier n 250pA Maximum Input Bias Current (LT6013A) n AV ≥5 Stable; Up to 500pF CLOAD n 0.2V/µs Slew Rate n 1.4MHz Gain Bandwidth Product n 120dB Minimum Voltage Gain, VS = ±15V n 0.8µV/°C Maximum VOS Drift n 2.7V to ±18V Supply Voltage Operation n Operating Temperature Range: – 40°C to 85°C n Available in SO-8 and Space Saving 3mm × 3mm DFN Packages , LTC and LT are registered trademarks of Linear Technology Corporation. The LT 6013 and LT6014 op amps combine low noise and high precision input performance with low power con- sumption and rail-to-rail output swing. The amplifiers are stable in a gain of 5 or more and feature greatly improved CMRR and PSRR versus frequency compared to other precision op amps. Input offset voltage is factory-trimmed to less than 35µV. The low drift and excellent long-term stability ensure a high accuracy over temperature and time. The 250pA maximum input bias current and 120dB minimum voltage gain further maintain this precision over operating conditions. The LT6013 and LT6014 operate from any supply voltage from 2.7V to 36V and draw only 145µA of supply current per amplifier on a 5V supply. The output swings to within 40mV of either supply rail, making the amplifiers very useful for low voltage single supply operation. The amplifiers are fully specified at 5V and ±15V supplies and from –40 °C to 85 °C. The single LT6013 and dual LT6014 are both available in SO-8 and space saving 3mm × 3mm DFN packages. For unity gain stable ver- sions, refer to the LT6010 and LT6011 data sheets. Gain of 10 Single Ended to Differential Converter 1/2 LT6014 8.06k2k VIN 5 • VIN

60134 TA01a

–5 • VIN LT6013/LT6014 0.1Hz to 10Hz Voltage Noise TIME (SEC) INPUT VOLTAGE NOISE (0.1µV/DIV)

60134 TA01b

VS = 5V, 0V TA = 25°C EQUIVALENT RMS VOLTAGE = 40nVRMS

Operating Temperature Range (Note 4) .. – 40°C to 85°C Specified Temperature Range (Note 5) ... – 40°C to 85°C ORDER PART NUMBER DD PART MARKING* TJMAX = 125°C, θJA = 160°C/W UNDERSIDE METAL CONNECTED TO V– (PCB CONNECTION OPTIONAL) LT6013CDD LT6013IDD LT6013ACDD LT6013AIDD (Note 1)ABSOLUTE AXI U RATI GSW WW U PACKAGE/ORDER I FOR ATIOUU W TOP VIEW DD PACKAGE 8-LEAD (3mm · 3mm) PLASTIC DFN 1*NC –IN +IN V *NC V OUT NC ORDER PART NUMBER S8 PART MARKING LT6013CS8 LT6013IS8 LT6013ACS8 LT6013AIS8 6013 6013I 6013A 6013AI TJMAX = 150°C, θJA = 190°C/W TOP VIEW *NC OUT NC *NC –IN +IN V S8 PACKAGE 8-LEAD PLASTIC SO Maximum Junction Temperature Storage Temperature Range LBHC ORDER PART NUMBER DD PART MARKING* TJMAX = 125°C, θJA = 160°C/W UNDERSIDE METAL CONNECTED TO V– (PCB CONNECTION OPTIONAL) LT6014CDD LT6014IDD LT6014ACDD LT6014AIDD TOP VIEW DD PACKAGE 8-LEAD (3mm · 3mm) PLASTIC DFN 1OUT A –IN A +IN A V OUT B –IN B +IN B B A ORDER PART NUMBER S8 PART MARKING LT6014CS8 LT6014IS8 LT6014ACS8 LT6014AIS8 6014 6014I 6014A 6014AI TJMAX = 150°C, θJA = 190°C/W TOP VIEW OUT B –IN B +IN B OUT A –IN A +IN A V S8 PACKAGE 8-LEAD PLASTIC SO B A LBCB *Temperature and electrical grades are identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges. *No Connection *No Connection

The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 5V, 0V; VCM = 2.5V; RL to 0V; unless otherwise specified. (Note 5)

ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 8) LT6013AS8 10 35 µV TA = 0°C to 70°C l 60 µV TA = –40°C to 85°C l 75 µV LT6013S8, LT6014AS8 20 60 µV TA = 0°C to 70°C l 85 µV TA = –40°C to 85°C l 110 µV LT6013ADD 20 60 µV TA = 0°C to 70°C l 110 µV TA = –40°C to 85°C l 150 µV LT6014S8 20 75 µV TA = 0°C to 70°C l 100 µV TA = –40°C to 85°C l 125 µV LT6013DD, LT6014ADD 30 85 µV TA = 0°C to 70°C l 135 µV TA = –40°C to 85°C l 170 µV LT6014DD 30 125 µV TA = 0°C to 70°C l 175 µV TA = –40°C to 85°C l 210 µV ΔVOS/ΔT Input Offset Voltage Drift (Note 6) S8 Packages l 0.2 0.8 µV/°C DD Packages l 0.2 1.4 µV/°C IOS Input Offset Current (Note 8) LT6013AS8, LT6013ADD 100 250 pA TA = 0°C to 70°C l 500 pA TA = –40°C to 85°C l 600 pA LT6014AS8, LT6014ADD 100 500 pA TA = 0°C to 70°C l 600 pA TA = –40°C to 85°C l 700 pA LT6013/LT6014 (Standard grades) 150 800 pA TA = 0°C to 70°C l 1000 pA TA = –40°C to 85°C l 1200 pA IB Input Bias Current (Note 8) LT6013AS8, LT6013ADD 100 ±250 pA TA = 0°C to 70°C l ±500 pA TA = –40°C to 85°C l ±600 pA LT6013S8, LT6013DD, LT6014AS8, LT6014ADD 100 ±400 pA TA = 0°C to 70°C l ±600 pA TA = –40°C to 85°C l ±800 pA LT6014S8, LT6014DD 150 ±800 pA TA = 0°C to 70°C l ±1000 pA TA = –40°C to 85°C l ±1200 pA en Input Noise Voltage Density f = 1kHz, LT6013/LT6014 9.5 nV/ √Hz f = 1kHz, LT6013A/LT6014A 9.5 13 nV/ √Hz Input Noise Voltage (Low Frequency) Bandwidth = 0.01Hz to 1Hz 200 nV P-P 50 nV RMS Bandwidth = 0.1Hz to 10Hz 200 nV P-P 40 nV RMS

in Input Noise Current Density f = 1kHz 0.15 pA/ √Hz Input Noise Current (Low Frequency) Bandwidth = 0.01Hz to 1Hz 7 pA P-P 1.3 pA RMS Bandwidth = 0.1Hz to 10Hz 5 pA P-P 0.4 pA RMS RIN Input Resistance Common Mode, V CM = 1V to 3.8V 120 G Ω Differential 20 M Ω CIN Input Capacitance 4p F VCM Input Voltage Range (Positive) Guaranteed by CMRR l 3.8 4 V Input Voltage Range (Negative) Guaranteed by CMRR l 0.7 1 V CMRR Common Mode Rejection Ratio V CM = 1V to 3.8V l 107 135 dB Minimum Supply Voltage Guaranteed by PSRR l 2.4 2.7 V PSRR Power Supply Rejection Ratio V S = 2.7V to 36V, VCM = 1/2VS l 112 135 dB AVOL Large-Signal Voltage Gain R L = 10k, VOUT = 1V to 4V l 300 2000 V/mV RL = 2k, VOUT = 1V to 4V l 250 2000 V/mV Channel Separation V OUT = 1V to 4V, LT6014 l 110 140 dB VOUT Maximum Output Swing No Load, 50mV Overdrive 35 55 mV (Positive, Referred to V +) l 65 mV ISOURCE = 1mA, 50mV Overdrive 120 170 mV l 220 mV Maximum Output Swing No Load, 50mV Overdrive 40 55 mV (Negative, Referred to 0V) l 65 mV ISINK = 1mA, 50mV Overdrive 150 225 mV l 275 mV ISC Output Short-Circuit Current (Note 3) V OUT = 0V, 1V Overdrive, Source 8 14 mA l 4m A VOUT = 5V, –1V Overdrive, Sink 8 21 mA l 4m A SR Slew Rate A V = –10, RF = 50k, RG = 5k 0.15 0.2 V/ µs TA = 0°C to 70°C l 0.12 V/ µs TA = –40°C to 85°C l 0.1 V/ µs GBW Gain Bandwidth Product f = 10kHz 1 1.4 MHz l 0.9 MHz ts Settling Time A V = –4, 0.01%, VOUT = 1.5V to 3.5V 20 µs tr, tf Rise Time, Fall Time A V = 5, 10% to 90%, 0.1V Step 1 µs The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 5V, 0V; VCM = 2.5V; RL to 0V; unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 8) LT6013AS8 20 60 µV TA = 0°C to 70°C l 80 µV TA = –40°C to 85°C l 110 µV LT6013S8 25 85 µV TA = 0°C to 70°C l 110 µV TA = –40°C to 85°C l 135 µV LT6013ADD 25 85 µV TA = 0°C to 70°C l 135 µV TA = –40°C to 85°C l 170 µV LT6013DD, LT6014AS8 30 135 µV TA = 0°C to 70°C l 160 µV TA = –40°C to 85°C l 185 µV LT6014S8 35 150 µV TA = 0°C to 70°C l 175 µV TA = –40°C to 85°C l 200 µV LT6014ADD 35 160 µV TA = 0°C to 70°C l 210 µV TA = –40°C to 85°C l 225 µV LT6014DD 40 200 µV TA = 0°C to 70°C l 250 µV TA = –40°C to 85°C l 275 µV The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 5V, 0V; VCM = 2.5V; RL to 0V; unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ΔVOS Offset Voltage Match (Note 7) LT6014AS8 50 120 µV TA = 0°C to 70°C l 170 µV TA = –40°C to 85°C l 220 µV LT6014ADD 50 170 µV TA = 0°C to 70°C l 270 µV TA = –40°C to 85°C l 340 µV LT6014S8 50 150 µV TA = 0°C to 70°C l 200 µV TA = –40°C to 85°C l 250 µV LT6014DD 60 250 µV TA = 0°C to 70°C l 350 µV TA = –40°C to 85°C l 420 µV ΔIB Input Bias Current Match (Note 7) LT6014AS8, LT6014ADD 200 800 pA TA = 0°C to 70°C l 1200 pA TA = –40°C to 85°C l 1400 pA LT6014S8, LT6014DD 300 1600 pA TA = 0°C to 70°C l 2000 pA TA = –40°C to 85°C l 2400 pA ΔCMRR Common Mode Rejection Ratio LT6014 l 101 135 dB Match (Note 7) ΔPSRR Power Supply Rejection Ratio LT6014 l 106 135 dB Match (Note 7) IS Supply Current per Amplifier 145 165 µA TA = 0°C to 70°C l 210 µA TA = –40°C to 85°C l 230 µA The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = ±15V, VCM = 0V, RL to 0V, unless otherwise specified. (Note 5)

ΔVOS/ΔT Input Offset Voltage Drift (Note 6) S8 Packages l 0.2 0.8 µV/°C DD Packages l 0.2 1.2 µV/°C IOS Input Offset Current (Note 8) LT6013AS8, LT6013ADD 100 250 pA TA = 0°C to 70°C l 500 pA TA = –40°C to 85°C l 600 pA LT6014AS8, LT6014ADD 100 500 pA TA = 0°C to 70°C l 600 pA TA = –40°C to 85°C l 700 pA LT6013/LT6014 (Standard grades) 150 800 pA TA = 0°C to 70°C l 1000 pA TA = –40°C to 85°C l 1200 pA IB Input Bias Current (Note 8) LT6013AS8, LT6013ADD 100 ±250 pA TA = 0°C to 70°C l ±500 pA TA = –40°C to 85°C l ±600 pA LT6013S8, LT6013DD, LT6014AS8, LT6014ADD 100 ±400 pA TA = 0°C to 70°C l ±600 pA TA = –40°C to 85°C l ±800 pA LT6014S8, LT6014DD 150 ±800 pA TA = 0°C to 70°C l ±1000 pA TA = –40°C to 85°C l ±1200 pA en Input Noise Voltage Density f = 1kHz, LT6013/LT6014 9.5 nV/ √Hz f = 1kHz, LT6013A/LT6014A 9.5 13 nV/ √Hz Input Noise Voltage (Low Frequency) Bandwidth = 0.01Hz to 1Hz 200 nV P-P 50 nV RMS Bandwidth = 0.1Hz to 10Hz 200 nV P-P 40 nV RMS in Input Noise Current Density f = 1kHz 0.15 pA/ √Hz Input Noise Current (Low Frequency) Bandwidth = 0.01Hz to 1Hz 7 pA P-P 1.3 pA RMS Bandwidth = 0.1Hz to 10Hz 5 pA P-P 0.4 pA RMS RIN Input Resistance Common Mode, V CM = ±13.5V 400 G Ω Differential 20 M Ω CIN Input Capacitance 4p F VCM Input Voltage Range Guaranteed by CMRR l ±13.5 ±14 V CMRR Common Mode Rejection Ratio V CM = –13.5V to 13.5V 115 135 dB l 112 135 dB Minimum Supply Voltage Guaranteed by PSRR l ±1.2 ±1.35 V PSRR Power Supply Rejection Ratio V S = ±1.35V to ±18V l 112 135 dB AVOL Large-Signal Voltage Gain R L = 10k, VOUT = –13.5V to 13.5V 1000 2000 V/mV l 600 V/mV RL = 5k, VOUT = –13.5V to 13.5V 500 1500 V/mV l 300 V/mV Channel Separation V OUT = –13.5V to 13.5V, LT6014 l 120 140 dB ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = ±15V, VCM = 0V, RL to 0V, unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

VOUT Maximum Output Swing No Load, 50mV Overdrive 45 80 mV (Positive, Referred to V+) l 100 mV ISOURCE = 1mA, 50mV Overdrive 140 195 mV l 240 mV Maximum Output Swing No Load, 50mV Overdrive 45 80 mV (Negative, Referred to V–) l 100 mV ISINK = 1mA, 50mV Overdrive 150 250 mV l 300 mV ISC Output Short-Circuit Current V OUT = 0V, 1V Overdrive (Source) 8 15 mA (Note 3) l 5m A VOUT = 0V, –1V Overdrive (Sink) 8 20 mA l 5m A SR Slew Rate A V = –10, RF = 50k, RG = 5k 0.15 0.2 V/ µs TA = 0°C to 70°C l 0.12 V/ µs TA = –40°C to 85°C l 0.1 V/ µs GBW Gain Bandwidth Product f = 10kHz 1.1 1.6 MHz l 1 MHz ts Settling Time A V = –4, 0.01%, VOUT = 0V to 10V 40 µs tr, tf Rise Time, Fall Time A V = 5, 10% to 90%, 0.1V Step 0.9 µs ΔVOS Offset Voltage Match (Note 7) LT6014AS8 50 270 µV TA = 0°C to 70°C l 320 µV TA = –40°C to 85°C l 370 µV LT6014ADD 50 320 µV TA = 0°C to 70°C l 420 µV TA = –40°C to 85°C l 450 µV LT6014S8 70 300 µV TA = 0°C to 70°C l 350 µV TA = –40°C to 85°C l 400 µV LT6014DD 80 400 µV TA = 0°C to 70°C l 500 µV TA = –40°C to 85°C l 550 µV ΔIB Input Bias Current Match (Note 7) LT6014AS8, LT6014ADD 200 800 pA TA = 0°C to 70°C l 1200 pA TA = –40°C to 85°C l 1400 pA LT6014S8, LT6014DD 300 1600 pA TA = 0°C to 70°C l 2000 pA TA = –40°C to 85°C l 2400 pA ΔCMRR Common Mode Rejection Ratio LT6014 l 109 135 dB Match (Note 7) ΔPSRR Power Supply Rejection Ratio LT6014 l 106 135 dB Match (Note 7) IS Supply Current per Amplifier 200 250 µA TA = 0°C to 70°C l 290 µA TA = –40°C to 85°C l 310 µA ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = ±15V, VCM = 0V, RL to 0V, unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

TYPICAL PERFOR A CE CHARACTERISTICS UW Distribution of Input Offset Voltage Input Offset Voltage vs Temperature Offset Voltage vs Input Common Mode Voltage Input Bias Current vs Temperature Input Bias Current vs Input Common Mode Voltage –25 INPUT OFFSET VOLTAGE (µV) PERCENT OF UNITS (%)

60134 G01

VS = 5V, 0V TA = 25°C LT6013AS8 –45 –35 –15 –5 5 15 25 35 45 TEMPERATURE (°C) –50 –125 OFFSET VOLTAGE (µV) –100 –50 –25 125 0 50 75

60134 G02

–75 100 –25 25 100 125 VS = 5V, 0V REPRESENTATIVE UNITS INPUT COMMON MODE VOLTAGE (V) 1000 900 800 600 400 200 700 500 300 100

60134 G03

CHANGE IN OFFSET VOLTAGE (µV) VS = 5V, 0V TA = 85°C TA = –40°C TA = 25°C TEMPERATURE (°C) –50 –800 INPUT BIAS CURRENT (pA) –600 –200 800

60134 G05

–400 0–25 75 10025 125 200 400 600 VS = 5V, 0V TYPICAL PART INPUT COMMON MODE VOLTAGE (V) –400 –300 –200CHANGE IN INPUT BIAS CURRENT (pA) –100 100 200 400 300 0.5 1.0 1.5 2.0

60134 G06

VS = 5V, 0V TA = 85°C TA = 25°C TA = –40°C INPUT BIAS CURRENT (pA) –175 PERCENT OF UNITS (%) –75 25–25

60134 G04

–125 75 125 175 LT6013AS8 Distribution of Input Bias Current Note 1: Absolute Maximum Ratings are those beyond which the life of the device may be impaired. 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: The LT6013C/LT6014C and LT6013I/LT6014I are guaranteed functional over the operating temperature range of –40 °C to 85°C. Note 5: The LT6013C and LT6014C are guaranteed to meet the specified performance from 0°C to 70°C and are designed, characterized and expected to meet specified performance from –40 °C to 85°C but is not tested or QA sampled at these temperatures. The LT6013I and LT6014I are guaranteed to meet specified performance from –40°C to 85°C. Note 6: This parameter is not 100% tested. Note 7: Matching parameters are the difference between the two amplifiers. ΔCMRR and ΔPSRR are defined as follows: (1) CMRR and PSRR are measured in µV/V for the individual amplifiers. (2) The difference between matching amplifiers is calculated in µV/V. (3) The result is converted to dB. Note 8: The specifications for V OS, IB, and IOS depend on the grade and on the package. The following table clarifies the notations. STANDARD GRADE A GRADE

TYPICAL PERFOR A CE CHARACTERISTICS UW Output Voltage Swing vs Temperature Output Saturation Voltage vs Load Current (Output High) Output Saturation Voltage vs Load Current (Output Low) TEMPERATURE (°C) –5 0 OUTPUT VOLTAGE SWING (mV) –20

60134 G11

–2 5 0 5 0 –40 –60 75 100 125 VS = 5V, 0V NO LOAD OUTPUT HIGH OUTPUT LOW LOAD CURRENT (mA) 0.01 0.01OUTPUT HIGH SATURATION VOLTAGE (V) 0.1 0.1 1 10

60134 G12

TA = 85°C TA = 25°C VS = 5V, 0V TA = –40°C LOAD CURRENT (mA) 0.01 0.01OUTPUT LOW SATURATION VOLTAGE (V) 0.1 0.1 1 10

60134 G13

TA = 85°C TA = 25°C VS = 5V, 0V TA = –40°C 0.01Hz to 1Hz Voltage Noise TIME (SEC) INPUT VOLTAGE NOISE (0.1µV/DIV)

60134 G10

20 40 60 100 7010 30 50 90 VS = 5V, 0V TA = 25°C 0.1Hz to 10Hz Voltage Noise TIME (SEC)

60134 G09

TIME (SEC) INPUT VOLTAGE NOISE (0.1µV/DIV) VS = 5V, 0V TA = 25°C 0.01Hz to 1Hz Current Noise TIME (SEC) 08 0

60134 G32

20 40 60 100 7010 30 50 90 INPUT CURRENT NOISE (2pA/DIV) VS = 5V, 0V TA = 25°C BALANCED SOURCE RESISTANCE 0.1Hz to 10Hz Current Noise TIME (SEC)

60134 G31

TIME (SEC) INPUT CURRENT NOISE (2pA/DIV) VS = 5V, 0V TA = 25°C BALANCED SOURCE RESISTANCE en, in vs Frequency Total Input Noise vs Source Resistance FREQUENCY (Hz) INPUT VOLTAGE NOISE DENSITY (nV/√Hz) INPUT CURRENT NOISE DENSITY (fA/√Hz) 10 100 1000 10 100 1000

60134 G07

SOURCE RESISTORSVOLTAGE NOISE 1/f CORNER = 40Hz 1/f CORNER = 2Hz VS = 5V, 0V TA = 25°C SOURCE RESISTANCE (Ω ) 100 1k 10k 100k 1M 10M

0.0001 TOTAL INPUT NOISE (µV/√Hz)

0.01 100M

60134 G08

0.001 0.1 TOTAL NOISE RESISTOR NOISE ONLY VS = 5V, 0V TA = 25°C f = 1kHz UNBALANCED SOURCE RESISTORS

TYPICAL PERFOR A CE CHARACTERISTICS UW Channel Separation vs Frequency CMRR vs Frequency FREQUENCY (Hz) 11 0 CHANNEL SEPARATION (dB) 100 120 100 1k 10k 100k 1M

60134 G20

160 LT6014

VS = 5V, 0V TA = 25°C FREQUENCY (Hz) 11 0 COMMON MODE REJECTION RATIO (dB) 100 120 100 1k 10k 100k 1M

60134 G21

160 TA = 25°C

PSRR vs Frequency, Single Supply FREQUENCY (Hz) 0.1 POWER SUPPLY REJECTION RATIO (dB) 100 120 140 1 10 100 1k 10k 100k 1M

60134 G19

VS = 5V, 0V TA = 25°C THD + Noise vs Frequency THD + Noise vs Frequency Settling Time vs Output Step FREQUENCY (Hz)

0.0001 THD + NOISE (%)

0.01 1k 10k100 100k

60134 G16

0.001 0.1 VS = 5V, 0V VOUT = 2VP-P TA = 25°C AV = 5 FREQUENCY (Hz) 0.01 1k 10k100

60134 G17

0.001 0.1 VS = –15V VOUT = 20VP-P TA = 25°C AV = 5 SETTLING TIME (µs) OUTPUT STEP (V) 10 20 25 30

60134 G18

VS = 5V, 0V AV = 5 TA = 25°C 0.1% 0.01% Supply Current vs Supply Voltage Warm-Up Drift SUPPLY VOLTAGE (–V) SUPPLY CURRENT (µA) 300 400 500

60134 G14

TA = 85°C TA = –40°C TA = 25°C TIME AFTER POWER-ON (SECONDS) CHANGE IN OFFSET VOLTAGE (µV) 30 60 90 120

60134 G15

–15V –2.5V PSRR vs Frequency, Split Supplies FREQUENCY (Hz) 0.1 POWER SUPPLY REJECTION RATIO (dB) 100 120 140 1 10 100 1k 10k 100k 1M

60134 G22

VS = –15V TA = 25°C POSITIVE SUPPLY NEGATIVE SUPPLY

Small-Signal Transient Response Large-Signal Transient Response Rail-to-Rail Output Swing 20mV/DIV AV = 5 2 µs/DIV 60134 G28 1V/DIV AV = –4 20 µs/DIV 60134 G29 VS = 5V, 0V RL = 2k 1V/DIV AV = –4 100 µs/DIV 60134 G30 VS = 5V, 0V RL = 2k TYPICAL PERFOR A CE CHARACTERISTICS UW Gain vs Frequency, AV = 5 Gain and Phase vs Frequency Gain vs Frequency, AV = –4 FREQUENCY (Hz) –10OPEN-LOOP GAIN (dB) PHASE SHIFT (DEG) –2 0 –30 1k 100k 1M 10M

60134 G25

–4 0 –80 – 240 –120 –160 –200 –280 10k PHASE GAIN VS = 5V, 0V TA = 25°C RL = 10k FREQUENCY (Hz) GAIN (dB) 10k 100k 1M

60134 G26

VS = 5V, 0V TA = 25°C CL = 500pF CL = 50pF FREQUENCY (Hz) GAIN (dB) 10k 100k 1M

60134 G27

VS = 5V, 0V TA = 25°C CL = 500pF CL = 50pF Output Impedance vs Frequency Open-Loop Gain vs Frequency FREQUENCY (Hz) OUTPUT IMPEDANCE (Ω ) 1000 0.1 100 1 100 1k 10k

60134 G23

0.01 10 100k VS = 5V, 0V TA = 25°C AV = 100 AV = 10 AV = 5 FREQUENCY (Hz) 120 100 –20 OPEN-LOOP GAIN (dB) 140 0.01 10 100 1k 10k 100k 1M 10M

60134 G24

–40 0.1 1 VS = 5V, 0V TA = 25°C RL = 10k

1. Suppose the op amp is removed from the circuit.
2. Apply a small-signal voltage at the output node of the
3. Find the differential voltage that would appear across

the two inputs of the op amp.

1. The ratio of the output voltage to the input voltage is

and the stability of the loop would be compromised. precision (offset and noise) remains very good. Figure 1. Use LT6013 and LT6014 in a Gain of 5 or Greater

60134 F01

Figure 2. Stabilizing Op Amp for Unity Gain Operation

60134 F02

APPLICATIO S I FOR ATIOWU UU Preserving Input Precision Preserving the input accuracy of the LT6013 and LT6014 requires that the applications circuit and PC board layout do not introduce errors comparable to or greater than the 10µV typical offset of the amplifiers. Temperature differen- tials across the input connections can generate thermo- couple 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 extremely low input bias currents allow high accuracy to be maintained with high impedance sources and feed- back resistors. The LT6013 and LT6014 low input bias cur- rents are obtained by a cancellation circuit on-chip. This causes the resulting I B+ 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 pos- sible for maximum accuracy. Leakage currents on the PC board can be higher than the input bias current. For example, 10GΩ 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 exces- sive leakage in high impedance applications. Input Protection The LT6013/LT6014 features on-chip back-to-back diodes between the input devices, along with 500Ω resistors in series with either input. This internal protection limits the input current to approximately 10mA (the maximum al- lowed) 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. Input Common Mode Range The LT6013/LT6014 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. Exceed- ing this common mode range will cause the gain to drop to zero; however, no phase reversal will occur. Total Input Noise The LT6013 and LT6014 amplifiers contribute negligible noise to the system when driven by sensors (sources) with impedance between 10k Ω and 1M Ω . Throughout this range, total input noise is dominated by the 4kTR S noise of the source. If the source impedance is less than 10kΩ , the input voltage noise of the amplifier starts to contribute with a minimum noise of 9.5nV/√Hz for very low source im- pedance. If the source impedance is more than 1MΩ , 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: v e kTR i Rn TOTAL n S n S() ()=+ + 2 24 where en = 9.5nV/√Hz , in = 0.15pA/√Hz and RS is the total impedance at the input, including the source impedance. Capacitive Loads The LT6013 and LT6014 can drive capacitive loads up to 500pF at a gain of 5. The capacitive load driving capability increases as the amplifier is used in higher gain configu- rations. A small series resistance between the output and the load further increases the amount of capacitance that the amplifier can drive.

C B A B A Q15 Q1 Q2 D2D1 Q11 Q17 Q21 Q12 Q14 Q20 Q19 Q13 Q18 R3 R4 R6R5 RC1 500Ω 500Ω +IN –IN OUT Q9 Q10 (One Amplifier)

8-Lead Plastic DFN (3mm × 3mm) (Reference LTC DWG # 05-08-1698) 3.00 –0.10 (4 SIDES) 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 0.38 – 0.10 BOTTOM VIEW—EXPOSED PAD 1.65 – 0.10 (2 SIDES) 0.75 –0.05 R = 0.115 TYP 2.38 –0.10 (2 SIDES) PIN 1 TOP MARK (NOTE 6)

0.200 REF

0.00 – 0.05 (DD8) DFN 1203 0.25 – 0.05 2.38 –0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 1.65 –0.05 (2 SIDES)2.15 –0.05 0.50 BSC 0.675 –0.05 3.5 –0.05 PACKAGE OUTLINE 0.25 – 0.05

0.50 BSC

8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .016 – .050 (0.406 – 1.270) .010 – .020 0°– 8° TYP .008 – .010 (0.203 – 0.254) SO8 0303 .053 – .069 (1.346 – 1.752) .014 – .019 (0.355 – 0.483) TYP .004 – .010 (0.101 – 0.254) .050 (1.270) BSC 1 2 3 4 .150 – .157 (3.810 – 3.988) NOTE 3 8 7 6 5 .189 – .197 (4.801 – 5.004) NOTE 3 .228 – .244 (5.791 – 6.197) .245 MIN .160 –.005 RECOMMENDED SOLDER PAD LAYOUT .045 –.005 .050 BSC .030 –.005 TYP INCHES (MILLIMETERS) NOTE: 1. DIMENSIONS IN 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) 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 l FAX: (408) 434-0507 l www.linear.com  LINEAR TECHNOLOGY CORPORATION 2004 LT/TP 0404 1K REV A • PRINTED IN USA PART NUMBER DESCRIPTION COMMENTS LT1112/LT1114 Dual/Quad Low Power, Picoamp Input Precision Op Amps 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 Amps C LOAD Up to 1000pF LT1884/LT1885 Dual/Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps 9.5nV/ √Hz Input Noise LT6011/LT6012 Dual/Quad Low Power Rail-to-Rail Output, Precision Op Amps 14nV/ √Hz, Unity-Gain Stable Version of LT6014 LT6010 Single Low Power Rail-to-Rail Output, Precision Op Amp 200pA Input Bias Current, Shutdown Feature RELATED PARTS UTYPICAL APPLICATIO Low Power Hall Sensor Amplifier LT1782 1/2 LT6014 VS VS + VOUT 7.87k VS = 3V TO 18V IS = ~600µA VOUT = ~40mV/mT 1, 2 10k OFFSET ADJUST 400Ω HALL ELEMENT ASAHI-KASEI HW-108A (RANK D) www.asahi-kasei.co.jp 26.7k 49.9k 0.1µF 49.9k VS 499Ω 499Ω

60134 TA02

LT1790-1.25 1/2 LT6014 1µF Precision Micropower Photodiode Amplifier

60134 TA04

VS– 100k 20pF VOUT880nm IR PHOTODIODE OPTO-DIODE CORP ODD-45W l IPHOTODIODE GAIN: AZ = 100kΩ = 10% TO 90% RISE TIME: tr = 3.2µs BANDWIDTH: BW = 110kHz IPHOTODIODE VOUT VS = –1.35V TO –18V C1, CD SATISFY GAIN OF 5 STABILITY REQUIREMENT AT AC OUTPUT OFFSET = 60µV MAX FOR LT6013AS8 LT6013