LT6001

LT6000/LT6001/LT6002 - Dual and Quad, 1.8V, 13µA Precision Rail-to-Rail Op Amps

Document overview

• Manufacturer or author: Linear Technology Corporation
• PDF pages: 20

Technical content

■ Gas Sensing ■ Portable Instrumentation ■ Battery- or Solar-Powered Systems ■ Low Voltage Signal Processing ■ Micropower Active Filters ■ Ideal for Battery-Powered Applications – Low Voltage: 1.8V to 16V Operation – Low Current: 16µA/Amplifier Max – Small Packages: DFN, MSOP, SSOP – Shutdown to 1.5µA Max (LT6000, LT6001DD) ■ Low Offset Voltage: 600µV Max ■ Rail-to-Rail Input and Output ■ Fully Specified on 1.8V and 5V Supplies ■ Operating Temperature Range: –40°C to 85°C ■ Single Available in DFN Dual Available in MSOP and DFN Quad Available in SSOP and DFN Single, Dual and Quad, 1.8V, 13µA Precision Rail-to-Rail Op Amps , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. The LT 6000/LT6001/LT6002 are single, dual and quad precision rail-to-rail input and output operational amplifi- ers. Designed to maximize battery life in always-on appli- cations, the devices will operate on supplies down to 1.8V while drawing only 13 µA quiescient current. The low supply current and low voltage operation is combined with precision specifications; input offset is guaranteed less than 600µV. The performance on 1.8V supplies is fully specified and guaranteed over temperature. A shutdown feature available in the LT6000 and the 10-lead dual LT6001 version can be used to extend battery life by allowing the amplifiers to be switched off during periods of inactivity. The LT6000 is available in a tiny, dual fine pitch leadless DFN package. The LT6001 is available in the 8-pin MSOP package; a 10-lead version with the shutdown feature is available in DFN package. The quad LT6002 is available in the 16-pin SSOP package and the 16-pin DFN package. These devices are specified over the commercial and industrial temperature range. –VE 100Ω 330Ω VOUT = 1V IN AIR, 0V WITHOUT OXYGEN 330Ω 10k OXYGEN SENSOR CITY TECHNOLOGY 40X(2) www.citytech.com +VE 1/2 LT6001 200k VS = 1.8V ISUPPLY = 145µA IN AIR, 45µA WITHOUT OXYGEN VS VS 20k 60012 TA01a 1/2 LT6001 Micropower Oxygen Sensor Start-Up Characteristics Supply Current vs Supply Voltage TOTAL SUPPLY VOLTAGE (V) 0.4 SUPPLY CURRENT PER AMPLIFIER (µA) 0.8 1.2 1.4

60012 TA01b

AV = 1 VCM = 0.5V TA = 125°C TA = 25°C TA = –55°C

MARKING* ABSOLUTE AXI U RATI GSW WW U (Note 1) Operating Temperature Range (Note 3) ... –40°C to 85°C Specified Temperature Range (Note 4) .... –40°C to 85°C Storage Temperature Range Lead Temperature (Soldering, 10 sec) PACKAGE/ORDER I FOR ATIOUU W ORDER PART NUMBER LT6000CDCB LT6000IDCB TOP VIEW DD PACKAGE 10-LEAD (3mm /KB4 3mm) PLASTIC DFN 1 V+ OUT B IN– B IN+ B SHDN OUT A IN– A IN+ A NC TJMAX = 125°C, θJA = 160°C/W (NOTE 2) EXPOSED PAD (PIN 11) IS CONNECTED TO V– (PIN 4) LT6001CMS8 LT6001IMS8 LT6001CDD LT6001IDD LTBVD LTBVD TJMAX = 150°C, θJA = 250°C/W OUT A IN – A IN+ A V OUT B IN – B IN+ B TOP VIEW MS8 PACKAGE 8-LEAD PLASTIC MSOP + – LCDM LCDM LBVH LBVH TOP VIEW OUT SHDN –IN +IN DCB PACKAGE 6-LEAD (2mm × 3mm) PLASTIC DFN TJMAX = 125°C, θJA = 160°C/W (NOTE 2) EXPOSED PAD (PIN 7) IS CONNECTED TO V– (PIN 5) MS8 PART MARKING* ORDER PART NUMBER DD PART MARKING* ORDER PART NUMBER ORDER PART NUMBER LT6002CGN LT6002IGN ORDER PART NUMBER DHC PART MARKING* LT6002CDHC LT6002IDHC GN PART MARKING 6002 6002I TJMAX = 125°C, θJA = 160°C/W (NOTE 2) EXPOSED PAD (PIN 17) IS CONNECTED TO V– (PIN 13) TOP VIEW DHC PACKAGE 16-LEAD (5mm /KB4 3mm) DFN OUT A IN– A IN+ A IN+ B IN– B OUT B NC OUT D IN– D IN+ D IN+ C IN– C OUT C NC AD BC TOP VIEW GN PACKAGE 16-LEAD NARROW PLASTIC SSOP OUT A IN – A IN+ A IN+ B IN– B OUT B NC OUT D IN – D IN+ D IN+ C IN– C OUT C NC AD BC TJMAX = 150°C, θJA = 135°C/W 6002 6002 *Temperature grades are identified on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges. 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/

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage LT6001MS8 200 600 µV 0°C ≤ TA ≤ 70°C ● 800 µV –40°C ≤ TA ≤ 85°C ● 950 µV LT6000DCB, LT6001DD, LT6002GN 250 750 µV 0°C ≤ TA ≤ 70°C ● 1000 µV –40°C ≤ TA ≤ 85°C ● 1200 µV LT6002DHC 300 900 µV 0°C ≤ TA ≤ 70°C ● 1100 µV –40°C ≤ TA ≤ 85°C ● 1300 µV VCM = V+ LT6001MS8 400 1000 µV

• 1300 µV VCM = V+ LT6000DCB, LT6001DD, LT6002GN 500 1200 µV
• 1550 µV VCM = V+ LT6002DHC 500 1300 µV
• 1700 µV ∆VOS/∆T Input Offset Voltage Drift (Note 5) V CM = 0.5V ● 25 µV/°C IB Input Bias Current V CM = 0.5V ● –5 –2 nA VCM = V– ● –5 –2 nA VCM = V+ ● 4 10 nA IOS Input Offset Current V CM = 0.5V ● 0.2 1 nA VCM = V– ● 0.2 1 nA VCM = V+ ● 0.4 2 nA Input Noise Voltage 0.1Hz to 10Hz 1.2 µVP-P en Input Voltage Noise Density f = 1kHz 75 nV/ √Hz in Input Current Noise Density f = 1kHz 25 fA/ √Hz RIN Input Resistance Common Mode (V CM = 0V to 0.6V) 3.5 G Ω Differential 10 25 M Ω CIN Input Capacitance 5p F CMRR Common Mode Rejection Ratio V CM = 0V to 0.6V, 0°C ≤ TA ≤ 70°C ● 82 96 dB VCM = 0.1V to 0.6V, –40°C ≤ TA ≤ 85°C ● 82 96 dB VCM = 0V to 1.8V ● 60 78 dB Input Voltage Range ● 0 1.8 V PSRR Power Supply Rejection Ratio V S = 1.8V to 16V ● 86 100 dB VCM = VO = 0.5V Minimum Supply V CM = VO = 0.5V ● 1.8 V AVOL Large-Signal Gain V O = 0.25V to 1.25V RL = 100k to GND 25 65 V/mV RL = 100k to GND ● 20 V/mV RL = 10k to GND 40 125 V/mV RL = 10k to GND ● 25 V/mV VOL Output Swing Low (Note 6) Input Overdrive = 30mV No Load ● 30 60 mV ISINK = 100µA ● 120 200 mV VOH Output Swing High (Note 6) Input Overdrive = 30mV No Load ● 30 60 mV ISOURCE = 100µA ● 140 225 mV RL = 10k to GND ● 160 250 mV ELECTRICAL CHARACTERISTICSThe ● denotes specifications which apply over the full specified temperature range, otherwise specifications are TA = 25°C. VS = 1.8V, 0V, VCM = VOUT = 0.5V. For the LT6000 and the LT6001DD, VSHDN = V+, unless otherwise noted.

ELECTRICAL CHARACTERISTICSThe ● denotes specifications which apply over the full specified temperature range, otherwise specifications are TA = 25°C. VS = 1.8V, 0V, VCM = VOUT = 0.5V. For the LT6000 and the LT6001DD, VSHDN = V+, unless otherwise noted. ISC Short-Circuit Current Short to GND 2 4 mA 0°C ≤ TA ≤ 70°C ● 1m A Short to V+ 0.7 2 mA 0°C ≤ TA ≤ 70°C ● 0.4 mA IS Supply Current per Amplifier 13 16 µA 0°C ≤ TA ≤ 70°C ● 22 µA –40°C ≤ TA ≤ 85°C ● 24 µA Total Supply Current in Shutdown (Note 7) V SHDN = 0.3V ● 0.8 1.5 µA ISHDN SHDN Pin Current (Note 7) V SHDN = 1.8V ● 03 0 n A VSHDN = 0V ● –300 –200 nA Shutdown Output Leakage Current (Note 7) V SHDN = 0.3V (V– ≤ VOUT ≤ V+) ● 20 nA VL SHDN Pin Input Low Voltage (Note 7) ● 0.3 V VH SHDN Pin Input High Voltage (Note 7) ● 1.5V V tON Turn On Time (Note 7) V SHDN = 0V to 1.8V, 400 µs RL = 10k tOFF Turn Off Time (Note 7) V SHDN = 1.8V to 0V, 100 µs RL = 10k GBW Gain Bandwidth Product (Note 8) Freq = 1kHz 32 50 kHz 0°C ≤ TA ≤ 70°C ● 28 kHz –40°C ≤ TA ≤ 85°C ● 24 kHz SR Slew Rate A V = –1, VOUT = 0.25V to 1.5V 9 15 V/ms Measure 0.5V to 1.25V, 0°C ≤ TA ≤ 70°C ● 7 V/ms –40°C ≤ TA ≤ 85°C ● 5 V/ms FPBW Full Power Bandwidth (Note 9) V OUT = 1.25VP-P 2.3 3.8 kHz SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage LT6001MS8 200 600 µV 0°C ≤ TA ≤ 70°C ● 800 µV –40°C ≤ TA ≤ 85°C ● 950 µV LT6000DCB, LT6001DD, LT6002GN 250 750 µV 0°C ≤ TA ≤ 70°C ● 1000 µV –40°C ≤ TA ≤ 85°C ● 1200 µV LT6002DHC 300 900 µV 0°C ≤ TA ≤ 70°C ● 1100 µV –40°C ≤ TA ≤ 85°C ● 1300 µV VCM = V+ LT6001MS8 400 1000 µV

• 1300 µV VCM = V+ LT6000DCB, LT6001DD, LT6002GN 500 1200 µV
• 1550 µV VCM = V+ LT6002DHC 500 1300 µV
• 1700 µV ∆VOS/∆T Input Offset Voltage Drift (Note 5) V CM = VS/2 ● 25 µV/°C IB Input Bias Current V CM = VS/2 ● –6 –2 nA VCM = V– ● –6 –2 nA VCM = V+ ● 4 12 nA IOS Input Offset Current V CM = VS/2 ● 0.2 1.2 nA VCM = V– ● 0.2 1.2 nA VCM = V+ ● 0.4 2.4 nA Input Noise Voltage 0.1Hz to 10Hz 1.2 µVP-P en Input Voltage Noise Density f = 1kHz 75 nV/ √Hz in Input Current Noise Density f = 1kHz 25 fA/ √Hz RIN Input Resistance Common Mode (V CM = 0V to 3.8V) 3.5 G Ω Differential ● 8.5 25 M Ω CIN Input Capacitance 5p F CMRR Common Mode Rejection Ratio V CM = 0V to 3.8V, 0°C ≤ TA ≤ 70°C ● 90 105 dB VCM = 0.1V to 3.8V, –40°C ≤ TA ≤ 85°C ● 90 105 dB VCM = 0V to 5V ● 68 86 dB Input Voltage Range ● 05 V PSRR Power Supply Rejection Ratio V S = 1.8V to 16V ● 86 100 dB VCM = VO = 0.5V Minimum Supply ● 1.8 V AVOL Large-Signal Gain V O = 0.5V to 4.5V RL = 100k to VS/2 30 60 V/mV RL = 100k to VS/2 ● 25 V/mV RL = 10k to VS/2 16 25 V/mV RL = 10k to VS/2 ● 10 V/mV RL = 10k to GND 160 1000 V/mV RL = 10k to GND ● 80 V/mV VOL Output Swing Low (Note 6) Input Overdrive = 30mV No Load ● 30 60 mV ISINK = 100µA ● 120 200 mV ISINK = 500µA ● 180 300 mV ELECTRICAL CHARACTERISTICSThe ● denotes specifications which apply over the full specified temperature range, otherwise specifications are TA = 25°C. VS = 5V, 0V, VCM = VOUT = 1/2 Supply. For the LT6000 and the LT6001DD, VSHDN = V+, unless otherwise noted.

ELECTRICAL CHARACTERISTICSThe ● denotes specifications which apply over the full specified temperature range, otherwise specifications are TA = 25°C. VS = 5V, 0V, VCM = VOUT = 1/2 Supply. For the LT6000 and the LT6001DD, VSHDN = V+, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOH Output Swing High (Note 6) Input Overdrive = 30mV No Load ● 30 60 mV ISOURCE = 100µA ● 140 225 mV RL = 10k to GND ● 160 400 mV ISC Short-Circuit Current Short to GND 5 10 mA 0°C ≤ TA ≤ 70°C ● 4m A –40°C ≤ TA ≤ 85°C ● 3m A Short to V+ 3.5 7.5 mA 0°C ≤ TA ≤ 70°C ● 2.5 mA IS Supply Current per Amplifier 15 18 µA 0°C ≤ TA ≤ 70°C ● 24 µA –40°C ≤ TA ≤ 85°C ● 27 µA VS = ±8V 20 25 µA

• 34 µA Total Supply Current in Shutdown (Note 7) V SHDN = 0.3V ● 35 µA ISHDN SHDN Pin Current (Note 7) V SHDN = 5V ● 03 0 n A VSHDN = 0V ● –1000 –650 nA Shutdown Output Leakage Current (Note 7) V SHDN = 0.3V (V– ≤ VOUT ≤ V+) ● 20 nA VL SHDN Pin Input Low Voltage (Note 7) ● 0.3 V VH SHDN Pin Input High Voltage (Note 7) ● 4.7 V tON Turn On Time (Note 7) V SHDN = 0V to 5V, RL = 10k 400 µs tOFF Turn Off Time (Note 7) V SHDN = 5V to 0V, RL = 10k 100 µs GBW Gain Bandwidth Product Freq = 1kHz 40 60 kHz 0°C ≤ TA ≤ 70°C ● 35 kHz –40°C ≤ TA ≤ 85°C ● 30 kHz SR Slew Rate A V = –1, VOUT = 0.5V to 4.5V 11 18 V/ms Measure 1V to 4V, 0°C ≤ TA ≤ 70°C ● 8 V/ms –40°C ≤ TA ≤ 85°C ● 6 V/ms FPBW Full Power Bandwidth (Note 9) V OUT = 4VP-P 0.87 1.4 kHz 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: A heat sink may be required to keep the junction temperature below the absolute maximum. This depends on the power supply voltage and how many amplifiers are shorted. The θJA specified for the DD and DHC packages is with minimal PCB heat spreading metal. Using expanded metal area on all layers of a board reduces this value. Note 3: The LT6000C/LT6000I/LT6001C/LT6001I and LT6002C/LT6002I are guaranteed functional over the temperature range of –40°C to 85°C. Note 4: The LT6000C/LT6001C/LT6002C is guaranteed to meet specified performance from 0°C to 70°C. The LT6000C/LT6001C/LT6002C are designed, characterized and expected to meet specified performance from –40°C to 85°C but are not tested or QA sampled at these temperatures. The LT6000I/LT6001I/ LT6002I is guaranteed to meet specified performance from –40°C to 85°C. Note 5: This parameter is not 100% tested. Note 6: Output voltage swings are measured between the output and power supply rails. Note 7: Specifications apply to the LT6000 or the LT6001DD with shutdown. Note 8: Guaranteed by correlation to slew rate at V S = 1.8V and GBW at VS = 5V. Note 9: Full-power bandwidth is calculated from the slew rate: FPBW = SR/πVP-P.

TYPICAL PERFOR A CE CHARACTERISTICSUW Supply Current vs Supply Voltage TOTAL SUPPLY VOLTAGE (V) SUPPLY CURRENT PER AMPLIFIER (µA) 12 14 16

600012 G03

TA = 125°C TA = –55°C TA = 25°C VCM = 0.5V TC VOS DistributionVOS Distribution Input Offset Voltage vs Total Supply Voltage TOTAL SUPPLY VOLTAGE (V) –300 OFFSET VOLTAGE (µV) –100 –100 12 14 16 400

600012 G05

TA = 125°C TA = –55°C TA = 25°C VCM = 0.5V TYPICAL PART INPUT COMMON MODE VOLTAGE (V) –200 OFFSET VOLTAGE (µV) 200 400 –100 100 300 123 4

60012 G06

VS = 5V, 0V TYPICAL PART TA = 125°C TA = 25°C TA = –55°C Input Bias Current vs Common Mode Voltage COMMON MODE VOLTAGE (V) –5.0 INPUT BIAS CURRENT (nA) –2.5 2.5 5.0 7.5 12.5 0.5 2.5 3.5

60012 G07

10.0 2 4.5 51 1.5 34 VS = 5V, 0V TA = 125°C TA = 25°C TA = –55°C Output Saturation Voltage vs Load Current (Output High) SOURCING LOAD CURRENT (mA) 0.001 0.01OUTPUT HIGH SATURATION VOLTAGE (V) 0.1 1.0 0.1 10.01 10

60012 G08

TA = 25°C TA = 125°C TA = –55°C VS = 5V, 0V INPUT OVERDRIVE = 30mV Output Saturation Voltage vs Load Current (Output Low) SINKING LOAD CURRENT (mA) 0.001 0.01OUTPUT LOW SATURATION VOLTAGE (V) 0.1 1.0 0.1 10.01 10 TA = 25°C TA = 125°C TA = –55°C VS = 5V, 0V INPUT OVERDRIVE = 30mV Input Offset Voltage vs Input Common Mode Voltage INPUT OFFSET VOLTAGE (µV) PERCENT OF UNITS (%) –400 –200 0 200

60012 G01

600400–600 VS = 5V, 0V VCM = 2.5V MS8 PACKAGE DISTRIBUTION (µV/°C) PERCENT OF UNITS (%)

20012 G02

–3–4 –1–2 12 40 5 VS = 5V, 0V VCM = 2.5V MS8, GN16, DD10 PACKAGES –40°C TO 85°C TOTAL SUPPLY VOLTAGE (V) CHANGE IN OFFSET VOLTAGE (µV) 100 150 200

60012 G35

–100 1.5 2 2.5 –50 300 250 TA = 125°C TA = 25°C VCM = 0.5V TA = –55°C Change in Input Offset Voltage vs Total Supply Voltage

TYPICAL PERFOR A CE CHARACTERISTICSUW 0.1Hz to 10Hz Output Voltage Noise Open-Loop Gain Output Short-Circuit Current vs Total Supply Voltage (Sourcing) TOTAL SUPPLY VOLTAGE (V)

60012 G11

OUTPUT SHORT-CIRCUIT CURRENT (mA) VCM = 0.5V OUTPUT SHORTED TO V– TA = 125°C TA = 25°C TA = –55°C Output Short-Circuit Current vs Total Supply Voltage (Sinking) TOTAL SUPPLY VOLTAGE (V) OUTPUT SHORT-CIRCIUT CURRENT (mA)

60012 G12

VCM = 0.5V OUTPUT SHORTED TO V+ TA = 125°C TA = 25°C TA = –55°C TIME (SECONDS) NOISE VOLTAGE (500nV/DIV) 246 8

60012 G13

VS = ±2.5V Noise Voltage Density vs Frequency FREQUENCY (Hz) NOISE VOLTAGE (nV/√Hz) 100 10 100 1000

60012 G14

VS = 5V, 0V TA = 25°C VCM = 4.5V VCM = 2.5V Input Noise Current vs Frequency FREQUENCY (Hz) INPUT NOISE CURRENT DENSITY (fA/√Hz) 100 1000 10 100 1000

60012 G15

VS = 5V, 0V TA = 25°C VCM = 4.5V VCM = 2.5V OUTPUT VOLTAGE (V) –60CHANGE IN INPUT OFFSET VOLTAGE (µV) –40 –20 0.3 0.6 0.9 1.2

60012 G16

1.5 1.8 VS = 1.8V, 0V VCM = 0.5V TA = 25°C RL = 10k RL = 100k OUTPUT VOLTAGE (V) CHANGE IN INPUT OFFSET VOLTAGE (µV)

60012 G17

–20 –40 1 2 3 5 VS = 5V, 0V VCM = 2.5V TA = 25°C RL = 10k RL = 100k OUTPUT VOLTAGE (V) –2.5 CHANGE IN INPUT OFFSET VOLTAGE (µV) 200 150 100 –50 –100 –150 – 200 1.5

20012 G18

VS = ±2.5V TA = 25°C RL = 10k RL = 100k Open-Loop Gain Open-Loop Gain Output Saturation Voltage vs Input Overdrive INPUT OVERDRIVE (mV) OUTPUT SATURATION VOLTAGE (mV) 5 10 15 20

60012 G10

VS = 5V, 0V NO LOAD OUTPUT HIGH OUTPUT LOW

TYPICAL PERFOR A CE CHARACTERISTICSUW Slew Rate vs Temperature Gain Bandwidth and Phase Margin vs Temperature TEMPERATURE (°C) –50 10GAIN BANDWIDTH (kHz) PHASE MARGIN (DEG) –25 25 50 125 0 75 100VS = 1.8V, 0V VCM = 0.5V VS = 1.8V, 0V VCM = 0.5V VS = 5V, 0V VCM = 2.5V VS = 5V, 0V VCM = 2.5V GAIN BANDWIDTH PHASE MARGIN f = 1kHz

60012 G21

TEMPERATURE (°C) –50 SLEW RATE (V/ms) 25 75

60012 G22

–25 0 50 100 125 RISING VS = 5V, 0V RISING VS = 1.8V, 0V FALLING VS = 5V, 0V FALLING V S = 1.8V, 0V AV = –1 RF = RG = 100k Capacitive Load Handling Overshoot vs Capacitive Load CAPACITIVE LOAD (pF) OVERSHOOT (%) 100 1000 10000

60012 G23

AV = 1 AV = 2 AV = 5 VS = 5V, 0V VCM = 2.5V Common Mode Rejection Ratio vs Frequency FREQUENCY (kHz) 0.1 COMMON MODE REJECTION RATIO (dB) 100 1 10 100

60012 G24

VS = ±2.5V TA = 25°C Power Supply Rejection Ratio vs Frequency FREQUENCY (kHz) COMMON MODE REJECTION RATIO (dB) 110 0.01 1 10 100

60012 G25

–10 0.1 POSITIVE SUPPLY NEGATIVE SUPPLY VS = ±2.5V TA = 25°C Output Impedance vs Frequency FREQUENCY (kHz) 0.01 0.1 0.1 OUTPUT IMPEDANCE (Ω) 10000 1 10 100

60012 G26

VS = ±2.5V TA = 25°C AV = 10 AV = 1 Disabled Output Impedance vs Frequency (LT6000/LT6001DD) FREQUENCY (kHz) 0.01 OUTPUT IMPEDANCE (kΩ) 1000 1 0.1 10 100

60012 G27

VS = ±2.5V VPIN6(SHDN) = –2.5V Gain and Phase vs Frequency FREQUENCY (kHz) GAIN (dB) PHASE (DEG) –10 –20 0.1 10 100 1000

60012 G19

–30 –20 100 120 –40 –60 –80 VCM = 4.5V VCM = 4.5V VCM = 2.5V PHASE GAIN VCM = 2.5V VS = 5V, 0V RF = RG = 100k AV = –1 Gain Bandwidth and Phase Margin vs Supply Voltage TOTAL SUPPLY VOLTAGE (V) PHASE MARGIN (DEG) GAIN BANDWIDTH (kHz) 4 8 10 18

600012 G36

RF = RG = 100k AV = –1 f = 1kHz PHASE MARGIN GAIN BANDWIDTH

TYPICAL PERFOR A CE CHARACTERISTICSUW 1.5V 0.25V 100µs/DIVAV = 1 VS = 1.8V, 0V CL = 100pF RL = 10k

60012 G29

10µs/DIVAV = 1 VS = ±2.5V CL = 100pF RL = 100k

60012 G30

Large-Signal Response Small-Signal Response Total Supply Current vs SHDN Pin Voltage (LT6001DD) SHDN PIN VOLTAGE (V) SUPPLY CURRENT BOTH AMPLIFIERS (µA) 0.4 0.8 1.0 1.8

60012 G31

VS = 1.8V, 0V TA = 125°C TA = –55°C TA = 25°C Total Supply Current vs SHDN Pin Voltage (LT6001DD) SHDN PIN VOLTAGE (V) SUPPLY CURRENT BOTH AMPLIFIERS (µA) –3 –1 1 3

60012 G32

5–4–5 –2 0 2 4 VS = ±5V TA = 125°C TA = –55°C TA = 25°C 0V VSHDN VOUT 500µs/DIVVIN = 1V AV = 1 VS = 1.8V, 0V RL = 100k

60012 G33

(LT6000/LT6001DD) Large-Signal Response 4.5V 0.5V 100µs/DIVAV = 1 VS = 5V, 0V CL = 100pF RL = 10k

60012 G28

vs SHDN Pin Voltage (LT6000) Supply Current vs SHDN Pin Voltage (LT6000) SHDN PIN VOLTAGE (V) SUPPLY CURRENT (µA) 0.4 0.8 1.0 1.8

60012 G37

30 VS = 1.8V, 0V TA = 125°C TA = –55°C TA = 25°C SHDN PIN VOLTAGE (V) SUPPLY CURRENT (µA) –3 –1 1 3

60012 G34

5–4–5 –2 0 2 4 TA = 125°CVS = ±5V TA = –55°C TA = 25°C

IN– 30k Q11 Q14 OUT SHDN Q15 CM Q13 COMPLEMENTARY DRIVE GENERATOR Q12 Q4 Q5 Q16 Q18 APPLICATIO S I FOR ATIOWU UU Supply Voltage The positive supply of the LT6000/LT6001/LT6002 should be bypassed with a small capacitor (about 0.01µF) within an inch of the pin. When driving heavy loads, an additional 4.7µF electrolytic capacitor should be used. When using split supplies, the same is true for the negative supply pin. Rail-to-Rail Characteristics The LT6000/LT6001/LT6002 are fully functional for an input signal range from the negative supply to the positive supply. Figure 1 shows a simplified schematic of the amplifier. The input stage consists of two differential amplifiers, a PNP stage Q3/Q6 and an NPN stage Q4/Q5 that are active over different ranges of the input common mode voltage. The PNP stage is active for common mode voltages, V CM, between the negative supply to approxi- mately 1V below the positive supply. As VCM moves closer towards the positive supply, the transistor Q7 will steer Q2’s tail current to the current mirror Q8/Q9, activating the NPN differential pair. The PNP pair becomes inactive for the rest of the input common mode range up to the positive supply. The second stage is a folded cascode and current mirror that converts the input stage differential signals into a single ended output. Capacitor C1 reduces the unity cross frequency and improves the frequency stability without degrading the gain bandwidth of the amplifier. The comple- mentary drive generator supplies current to the output transistors that swing from rail to rail. Input The input bias current depends on which stage is active. The input bias current polarity depends on the input common mode voltage. When the PNP stage is active, the input bias currents flow out of the input pins. They flow in the opposite direction when the NPN stage is active. The offset error due to the input bias currents can be minimized by equalizing the noninverting and inverting source impedance. Figure 1 SI PLIFIED SCHE ATICWW

taining the precision characteristics of the amplifier. noted in the electrical characteristics. limited to 100mA, no damage will occur. offset forcing the output to come up saturated high.

60012 F01

60012 F02

Figure 1. Start-Up Characteristics Figure 2. Circuits for Start-Up Characteristics

Open-Loop Gain for various loads shows the details. switchover point will be a function of the supply voltage.

60012 F03

Figure 3. VOUT and ICC vs Input Voltage

+ 8 10k 90.9k 0.9V (NiMH) –0.9V (NiMH) 10k 90.9k VIN

7 OUT

60012 TA02a

FREQUENCY (Hz) –10 GAIN (dB) –20 –30 100 10k 100k 1M

60012 TA02b

–40 Gain of 100 Amplifier (400kHz GBW on 30µA Supply) Gain vs Frequency

6-Lead Plastic DFN (2mm × 3mm) (Reference LTC DWG # 05-08-1715) 3.00 ±0.10 (2 SIDES) 2.00 ±0.10 (2 SIDES) NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (TBD) 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 THE TOP AND BOTTOM OF PACKAGE 0.40 ± 0.10 BOTTOM VIEW—EXPOSED PAD 1.65 ± 0.10 (2 SIDES) 0.75 ±0.05 R = 0.115 TYP R = 0.05 TYP 1.35 ±0.10 (2 SIDES) PIN 1 BAR TOP MARK (SEE NOTE 6)

0.200 REF

0.00 – 0.05 (DCB6) DFN 0405 0.25 ± 0.05

0.50 BSC

R0.20 OR 0.25 × 45° CHAMFER 0.25 ± 0.05 1.35 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 1.65 ±0.05 (2 SIDES) 2.15 ±0.05 0.70 ±0.05 3.55 ±0.05 PACKAGE OUTLINE

(Reference LTC DWG # 05-08-1660) MSOP (MS8) 0204 0.53 ± 0.152 (.021 ± .006) SEATING PLANE 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 0.18 (.007) 0.254 (.010) 1.10 (.043) MAX 0.22 – 0.38 (.009 – .015) TYP 0.127 ± 0.076 (.005 ± .003) 0.86 (.034) REF 0.65 (.0256) BSC 0° – 6° TYP DETAIL “A” DETAIL “A” GAUGE PLANE 12 3 4 4.90 ± 0.152 (.193 ± .006) 8 7 6 5 3.00 ± 0.102 (.118 ± .004) (NOTE 3) 3.00 ± 0.102 (.118 ± .004) (NOTE 4) 0.52 (.0205) REF 5.23 (.206) MIN 3.20 – 3.45 (.126 – .136) 0.889 ± 0.127 (.035 ± .005) RECOMMENDED SOLDER PAD LAYOUT 0.42 ± 0.038 (.0165 ± .0015) TYP 0.65 (.0256) BSC

10-Lead (3mm × 3mm) Plastic DFN (Reference LTC DWG # 05-08-1699) 3.00 ±0.10 (4 SIDES) NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-2). CHECK THE LTC WEBSITE DATA SHEET FOR CURRENT STATUS OF VARIATION ASSIGNMENT 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 THE 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) 106 PIN 1 TOP MARK (SEE NOTE 6) 0.00 – 0.05 (DD10) DFN 1103 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 3.50 ±0.05 PACKAGE OUTLINE 0.25 ± 0.05

16-Lead Narrow Plastic SSOP (Reference LTC DWG # 05-08-1641) GN16 (SSOP) 0204 12 3 4 5 6 7 8 .229 – .244 (5.817 – 6.198) .150 – .157** (3.810 – 3.988) 16 15 14 13 .189 – .196* (4.801 – 4.978) 12 11 10 9 .016 – .050 (0.406 – 1.270) .015 ± .004 (0.178 – 0.249) .0532 – .0688 (1.35 – 1.75) .008 – .012 (0.203 – 0.305) TYP .004 – .0098 (0.102 – 0.249) .0250 (0.635) BSC .009 (0.229) REF .254 MIN RECOMMENDED SOLDER PAD LAYOUT .150 – .165 .0250 BSC.0165 ± .0015 .045 ±.005 *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 INCHES (MILLIMETERS) NOTE: 1. CONTROLLING DIMENSION: INCHES 2. DIMENSIONS ARE IN 3. DRAWING NOT TO SCALE

16-Lead (5mm × 5mm) Plastic DFN (Reference LTC DWG # 05-08-1706) 3.00 ±0.10 (2 SIDES) 5.00 ±0.10 (2 SIDES) NOTE: 1. DRAWING PROPOSED TO BE MADE VARIATION OF VERSION (WJED-1) IN JEDEC PACKAGE OUTLINE MO-229 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 THE TOP AND BOTTOM OF PACKAGE 0.40 ± 0.10 BOTTOM VIEW—EXPOSED PAD 1.65 ± 0.10 (2 SIDES) 0.75 ±0.05 R = 0.115 TYP R = 0.20 TYP 4.40 ±0.10 (2 SIDES) 169 PIN 1 TOP MARK (SEE NOTE 6) 0.00 – 0.05 (DHC16) DFN 1103 0.25 ± 0.05 PIN 1 NOTCH 4.40 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 1.65 ±0.05 (2 SIDES)2.20 ±0.05 0.65 ±0.05 3.50 ±0.05 PACKAGE OUTLINE 0.25 ± 0.05

Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORA TION 2005 LT 0406 REV A • PRINTED IN USA UTYPICAL APPLICATIO Low Power V-to-F Converter 1/2 LT6001 VREFVREF VREF VREF VIN VREF 42.2k 0.1µF 42.2k 42.2k TP0610 2N7002 1/2 LT6001 VOUT LTC®1440 1000pF FREQUENCY OUT ≈ 7.5Hz/mV • VIN LINEARITY ≈ 5%, VIN 20mV TO 800mV ISUPPLY ≈ 60µA TO 100µA DIODES: CENTRAL SEMI CMOD3003 0.1µF 0.1µF 1µF VREF VS 4.3V TO 20V

60012 TA03

LT1790-4.096 LT6000 1.8V VOUT VIN1 SHDN LT6000 1.8V

60012 TA04a

PART NUMBER DESCRIPTION COMMENTS LT2178/LT2179 17 µA Dual/Quad Single Supply Op Amps 120 µV VOS(MAX), Gain Bandwidth = 60kHz LT1490A/LT1491A 50 µA Dual/Quad Over-The-Top Rail-to-Rail Input and Output Op Amps 950 µV VOS(MAX), Gain Bandwidth = 200kHz LT1494/LT1495/LT1496 1.5 µA Max Single/Dual/Quad Over-The-Top Precision Rail-to-Rail Input 375 µV VOS(MAX), Gain Bandwidth = 2.7kHz and Output Op Amps LT1672/LT1673/LT1674 2 µA Max, AV ≥ 5, Single/Dual/Quad Over-The-Top Precision Rail-to-Rail Gain of 5 Stable, Gain Bandwidth = 12kHz Input and Output Op Amps LT1782 Micropower, Over-The-Top SOT-23 Rail-to-Rail Input and Output Op Amps SOT-23, 800 µV VOS(MAX), IS = 55µA (Max), Gain Bandwidth = 200kHz, Shutdown Pin Over-The-Top is a registered trademark of Linear Technology Corporation. VOUT 5ms/DIV

60012 TA04b

VS = 1.8V VIN1 = 250Hz AT 1VP-P VIN2 = 500Hz AT 0.5VP-P INPUT SELECT = 25Hz AT 1.8VP-P INPUT SELECT MUX Amplifier Waveforms