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LT6000/LT6001/LT6002 Single, Dual and Quad, 1.8V, 13A Precision Rail-to-Rail Op Amps
FEATURES
DESCRIPTIO

Ideal for Battery-Powered Applications - Low Voltage: 1.8V to 16V Operation - Low Current: 16A/Amplifier Max - Small Packages: DFN, MSOP, SSOP - Shutdown to 1.5A Max (LT6000, LT6001DD) Low Offset Voltage: 600V Max Rail-to-Rail Input and Output Fully Specified on 1.8V and 5V Supplies Operating Temperature Range: -40C to 85C Single Available in DFN Dual Available in MSOP and DFN Quad Available in SSOP and DFN
APPLICATIO S

The LT(R)6000/LT6001/LT6002 are single, dual and quad precision rail-to-rail input and output operational amplifiers. Designed to maximize battery life in always-on applications, the devices will operate on supplies down to 1.8V while drawing only 13A quiescient current. The low supply current and low voltage operation is combined with precision specifications; input offset is guaranteed less than 600V. 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.
, LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
Gas Sensing Portable Instrumentation Battery- or Solar-Powered Systems Low Voltage Signal Processing Micropower Active Filters
TYPICAL APPLICATIO
OXYGEN SENSOR CITY TECHNOLOGY 40X(2)
Micropower Oxygen Sensor
10k
25
Start-Up Characteristics Supply Current vs Supply Voltage
SUPPLY CURRENT PER AMPLIFIER (A)
AV = 1 VCM = 0.5V 20 TA = 125C
+VE www.citytech.com VS
200k
20k
+
-
VS
1/2 LT6001
60012 TA01a
+
-
-VE
100
330
1/2 LT6001
+
15 TA = 25C TA = -55C
VOUT = 1V IN AIR, 0V WITHOUT OXYGEN 330
-
10
5
VS = 1.8V ISUPPLY = 145A IN AIR, 45A WITHOUT OXYGEN
0 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 TOTAL SUPPLY VOLTAGE (V) 2.0
U
60012 TA01b
U
U
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LT6000/LT6001/LT6002
ABSOLUTE
AXI U RATI GS (Note 1)
Junction Temperature (DFN Packages) ................ 125C Storage Temperature Range .................. -65C to 150C Storage Temperature Range DFN Packages ................................... -65C to 125C Lead Temperature (Soldering, 10 sec) MSOP, SSOP Packages .................................... 300C
Total Supply Voltage (V+ to V-) .............................. 18V Input Current ..................................................... 10mA SHDN Pin Voltage (Note 7) ............................... V- to V+ Output Short Current Duration (Note 2) ......... Indefinite Operating Temperature Range (Note 3) ... -40C to 85C Specified Temperature Range (Note 4) .... -40C to 85C Junction Temperature ........................................... 150C
PACKAGE/ORDER I FOR ATIO
TOP VIEW SHDN 1 -IN 2 +IN 3 7 6 V+ 5 V- 4 OUT
OUT A IN- A IN+ A V-
1 2 3 4
DCB PACKAGE 6-LEAD (2mm x 3mm) PLASTIC DFN TJMAX = 125C, JA = 160C/W (NOTE 2) EXPOSED PAD (PIN 7) IS CONNECTED TO V- (PIN 5)
MS8 PACKAGE 8-LEAD PLASTIC MSOP
TJMAX = 150C, JA = 250C/W
ORDER PART NUMBER LT6000CDCB LT6000IDCB
DCB PART MARKING*
LCDM LCDM
TOP VIEW
ORDER PART NUMBER
LT6001CMS8 LT6001IMS8
OUT A IN- A IN+ A V+ IN+ B IN- B OUT B NC
1 2 3 4 5 6 7 8 + -B - +A
16 OUT D
- - 15 IN D D+ 14 IN+ D
13 V -
+ + 12 IN C C- 11 IN- C
10 OUT C 9 NC
GN PACKAGE 16-LEAD NARROW PLASTIC SSOP
TJMAX = 150C, JA = 135C/W
ORDER PART NUMBER LT6002CGN LT6002IGN
GN PART MARKING 6002 6002I
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/ *Temperature grades are identified on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
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U
U
W
WW
U
W
TOP VIEW
TOP VIEW 8 V+
- + - +
OUT A 1 IN- A 2 IN+ A 3 V- 4 NC 5 11
10 V+ 9 OUT B 8 IN- B 7 IN+ B 6 SHDN
7 OUT B 6 IN- B 5 IN+ B
DD PACKAGE 10-LEAD (3mm 3mm) PLASTIC DFN
TJMAX = 125C, JA = 160C/W (NOTE 2) EXPOSED PAD (PIN 11) IS CONNECTED TO V- (PIN 4)
MS8 PART MARKING*
ORDER PART NUMBER
DD PART MARKING* LBVH LBVH
16 OUT D
LTBVD LTBVD
OUT A IN- A IN+ A V+ IN B IN- B
+
LT6001CDD LT6001IDD
TOP VIEW 1 2 3 4 5 6 7 8 B C A 17 D
15 IN- D 14 IN+ D 13 V - 12 IN+ C 11 IN- C 10 OUT C 9 NC
OUT B NC
DHC PACKAGE 16-LEAD (5mm 3mm) DFN
TJMAX = 125C, JA = 160C/W (NOTE 2) EXPOSED PAD (PIN 17) IS CONNECTED TO V- (PIN 13)
ORDER PART NUMBER LT6002CDHC LT6002IDHC
DHC PART MARKING* 6002 6002
LT6000/LT6001/LT6002
The denotes specifications which apply over the full specified temperature range, otherwise specifications are TA = 25C. VS = 1.8V, 0V, VCM = VOUT = 0.5V. For the LT6000 and the LT6001DD, VSHDN = V+, unless otherwise noted.
SYMBOL VOS PARAMETER Input Offset Voltage CONDITIONS LT6001MS8 0C TA 70C -40C TA 85C LT6000DCB, LT6001DD, LT6002GN 0C TA 70C -40C TA 85C LT6002DHC 0C TA 70C -40C TA 85C VCM = V+ LT6001MS8 VCM = V+ LT6000DCB, LT6001DD, LT6002GN
ELECTRICAL CHARACTERISTICS
MIN

TYP 200
250

300

MAX 600 800 950 750 1000 1200 900 1100 1300 1000 1300 1200 1550 1300 1700 5
UNITS V V V V V V V V V V V V V V V V/C nA nA nA nA nA nA VP-P nV/Hz fA/Hz G M pF dB dB dB V dB V
400
500
VCM = V+ LT6002DHC
500

VOS/T IB
Input Offset Voltage Drift (Note 5) Input Bias Current
IOS
Input Offset Current
en in RIN CIN CMRR
Input Noise Voltage Input Voltage Noise Density Input Current Noise Density Input Resistance Input Capacitance Common Mode Rejection Ratio
VCM = 0.5V VCM = 0.5V VCM = V- VCM = V+ VCM = 0.5V VCM = V- VCM = V+ 0.1Hz to 10Hz f = 1kHz f = 1kHz Common Mode (VCM = 0V to 0.6V) Differential VCM = 0V to 0.6V, 0C TA 70C VCM = 0.1V to 0.6V, -40C TA 85C VCM = 0V to 1.8V VS = 1.8V to 16V VCM = VO = 0.5V VCM = VO = 0.5V VO = 0.25V to 1.25V RL = 100k to GND RL = 100k to GND RL = 10k to GND RL = 10k to GND Input Overdrive = 30mV No Load ISINK = 100A Input Overdrive = 30mV No Load ISOURCE = 100A RL = 10k to GND
-5 -5
10

PSRR
Input Voltage Range Power Supply Rejection Ratio Minimum Supply Large-Signal Gain
82 82 60 0 86 1.8 25 20 40 25
2 -2 -2 4 0.2 0.2 0.4 1.2 75 25 3.5 25 5 96 96 78 100
10 1 1 2
1.8
AVOL
65 125

V/mV V/mV V/mV V/mV 60 200 60 225 250 mV mV mV mV mV
VOL
Output Swing Low (Note 6)
30 120 30 140 160
VOH
Output Swing High (Note 6)
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LT6000/LT6001/LT6002
The denotes specifications which apply over the full specified temperature range, otherwise specifications are TA = 25C. VS = 1.8V, 0V, VCM = VOUT = 0.5V. For the LT6000 and the LT6001DD, VSHDN = V+, unless otherwise noted.
SYMBOL ISC PARAMETER Short-Circuit Current CONDITIONS Short to GND 0C TA 70C -40C TA 85C Short to V+ 0C TA 70C -40C TA 85C 0C TA 70C -40C TA 85C VSHDN = 0.3V VSHDN = 1.8V VSHDN = 0V VSHDN = 0.3V (V- VOUT V+) MIN 2 1 0.4 0.7 0.4 0.15 TYP 4 MAX UNITS mA mA mA mA mA mA A A A A nA nA nA V V s s kHz kHz kHz V/ms V/ms V/ms kHz
ELECTRICAL CHARACTERISTICS

2
IS
Supply Current per Amplifier
13
ISHDN
Total Supply Current in Shutdown (Note 7) SHDN Pin Current (Note 7) Shutdown Output Leakage Current (Note 7) SHDN Pin Input Low Voltage (Note 7) SHDN Pin Input High Voltage (Note 7) Turn On Time (Note 7) Turn Off Time (Note 7) Gain Bandwidth Product (Note 8)
-300
0.8 0 -200 20
16 22 24 1.5 30
VL VH tON tOFF GBW
0.3 1.5V 400 100 32 28 24 9 7 5 2.3 50
SR
Slew Rate
FPBW
Full Power Bandwidth (Note 9)
VSHDN = 0V to 1.8V, RL = 10k VSHDN = 1.8V to 0V, RL = 10k Freq = 1kHz 0C TA 70C -40C TA 85C AV = -1, VOUT = 0.25V to 1.5V Measure 0.5V to 1.25V, 0C TA 70C -40C TA 85C VOUT = 1.25VP-P

15
3.8
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LT6000/LT6001/LT6002
The denotes specifications which apply over the full specified temperature range, otherwise specifications are TA = 25C. VS = 5V, 0V, VCM = VOUT = 1/2 Supply. For the LT6000 and the LT6001DD, VSHDN = V+, unless otherwise noted.
SYMBOL VOS PARAMETER Input Offset Voltage CONDITIONS LT6001MS8 0C TA 70C -40C TA 85C LT6000DCB, LT6001DD, LT6002GN 0C TA 70C -40C TA 85C LT6002DHC 0C TA 70C -40C TA 85C VCM = V+ LT6001MS8 VCM = V+ LT6000DCB, LT6001DD, LT6002GN

ELECTRICAL CHARACTERISTICS
MIN
TYP 200
MAX 600 800 950 750 1000 1200 900 1100 1300 1000 1300 1200 1550 1300 1700 5
UNITS V V V V V V V V V V V V V V V V/C nA nA nA nA nA nA VP-P nV/Hz fA/Hz G M pF dB dB dB
250

300

400
500
VCM = V+ LT6002DHC
500

VOS/T IB
Input Offset Voltage Drift (Note 5) Input Bias Current
VCM = VS/2 VCM = VS/2 VCM = V- VCM = V+ VCM = VS/2 VCM = V- VCM = V+ 0.1Hz to 10Hz f = 1kHz f = 1kHz Common Mode (VCM = 0V to 3.8V) Differential VCM = 0V to 3.8V, 0C TA 70C VCM = 0.1V to 3.8V, -40C TA 85C VCM = 0V to 5V VS = 1.8V to 16V VCM = VO = 0.5V VO = 0.5V to 4.5V RL = 100k to VS/2 RL = 100k to VS/2 RL = 10k to VS/2 RL = 10k to VS/2 RL = 10k to GND RL = 10k to GND Input Overdrive = 30mV No Load ISINK = 100A ISINK = 500A
2 -6 -6 -2 -2 4 0.2 0.2 0.4 1.2 75 25 3.5 25 5 105 105 86
12 1.2 1.2 2.4
IOS
Input Offset Current
Input Noise Voltage en in RIN CIN CMRR Input Voltage Noise Density Input Current Noise Density Input Resistance Input Capacitance Common Mode Rejection Ratio

8.5 90 90 68 0 86 1.8 30 25 16 10 160 80
Input Voltage Range PSRR Power Supply Rejection Ratio Minimum Supply AVOL Large-Signal Gain
5 100
V dB V
60 25 1000

V/mV V/mV V/mV V/mV V/mV V/mV 60 200 300 mV mV mV
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VOL
Output Swing Low (Note 6)
30 120 180
5
LT6000/LT6001/LT6002
The denotes specifications which apply over the full specified temperature range, otherwise specifications are TA = 25C. VS = 5V, 0V, VCM = VOUT = 1/2 Supply. For the LT6000 and the LT6001DD, VSHDN = V+, unless otherwise noted.
SYMBOL VOH PARAMETER Output Swing High (Note 6) CONDITIONS Input Overdrive = 30mV No Load ISOURCE = 100A RL = 10k to GND Short to GND 0C TA 70C -40C TA 85C Short to V+ 0C TA 70C -40C TA 85C IS Supply Current per Amplifier 0C TA 70C -40C TA 85C VS = 8V Total Supply Current in Shutdown (Note 7) ISHDN SHDN Pin Current (Note 7) Shutdown Output Leakage Current (Note 7) VL VH tON tOFF GBW SHDN Pin Input Low Voltage (Note 7) SHDN Pin Input High Voltage (Note 7) Turn On Time (Note 7) Turn Off Time (Note 7) Gain Bandwidth Product VSHDN = 0V to 5V, RL = 10k VSHDN = 5V to 0V, RL = 10k Freq = 1kHz 0C TA 70C -40C TA 85C AV = -1, VOUT = 0.5V to 4.5V Measure 1V to 4V, 0C TA 70C -40C TA 85C VOUT = 4VP-P

ELECTRICAL CHARACTERISTICS
MIN
TYP 30 140 160
MAX 60 225 400
UNITS mV mV mV mA mA mA mA mA mA
ISC
Short-Circuit Current
5 4 3 3.5 2.5 1.5
10
7.5
15
18 24 27 25 34 5 30
A A A A A A nA nA nA V V s s kHz kHz kHz V/ms V/ms V/ms kHz
20

VSHDN = 0.3V VSHDN = 5V VSHDN = 0V VSHDN = 0.3V (V- VOUT V+)
3 -1000 0 -650 20
0.3 4.7 400 100 40 35 30 11 8 6 0.87 60
SR
Slew Rate
18
FPBW
Full Power Bandwidth (Note 9)
1.4
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 JA 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 -40C to 85C. Note 4: The LT6000C/LT6001C/LT6002C is guaranteed to meet specified performance from 0C to 70C. The LT6000C/LT6001C/LT6002C are designed, characterized and expected to meet specified performance from
-40C to 85C but are not tested or QA sampled at these temperatures. The LT6000I/LT6001I/ LT6002I is guaranteed to meet specified performance from -40C to 85C. 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 VS = 1.8V and GBW at VS = 5V. Note 9: Full-power bandwidth is calculated from the slew rate: FPBW = SR/VP-P.
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LT6000/LT6001/LT6002 TYPICAL PERFOR A CE CHARACTERISTICS
VOS Distribution
30 25 VS = 5V, 0V VCM = 2.5V MS8 PACKAGE
SUPPLY CURRENT PER AMPLIFIER (A)
PERCENT OF UNITS (%)
PERCENT OF UNITS (%)
20 15 10 5 0 -600
400 -400 -200 0 200 INPUT OFFSET VOLTAGE (V)
Change in Input Offset Voltage vs Total Supply Voltage
300
CHANGE IN OFFSET VOLTAGE (V)
VCM = 0.5V
250
OFFSET VOLTAGE (V)
200 100 0 -100
TA = 125C
OFFSET VOLTAGE (V)
200 150 100 50 0 -50 -100 1 2 1.5 2.5 TOTAL SUPPLY VOLTAGE (V) 3
60012 G35
TA = 25C TA = 125C
TA = -55C
-100 -300 0 2
Input Bias Current vs Common Mode Voltage
12.5 10.0
OUTPUT HIGH SATURATION VOLTAGE (V)
7.5 TA = 125C 5.0 2.5 0 -2.5 -5.0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 COMMON MODE VOLTAGE (V)
60012 G07
TA = 25C TA = 125C 0.1 TA = -55C
OUTPUT LOW SATURATION VOLTAGE (V)
VS = 5V, 0V
INPUT BIAS CURRENT (nA)
TA = 25C TA = -55C
UW
600
60012 G01
TC VOS Distribution
20 VS = 5V, 0V 18 VCM = 2.5V MS8, GN16, 16 DD10 PACKAGES 14 -40C TO 85C 12 10 8 6 4 2 0 -5 -4 -3 -2 -1 0 1 2 3 DISTRIBUTION (V/C) 4 5
Supply Current vs Supply Voltage
35 30 TA = 125C 25 20 TA = 25C 15 10 TA = -55C 5 0 0 2 4 6 8 10 12 14 TOTAL SUPPLY VOLTAGE (V) 16 18 VCM = 0.5V
20012 G02
600012 G03
Input Offset Voltage vs Total Supply Voltage
400 300 VCM = 0.5V TYPICAL PART
400 300 200
Input Offset Voltage vs Input Common Mode Voltage
VS = 5V, 0V TYPICAL PART
TA = 125C 100 TA = 25C 0 TA = -55C
TA = 25C
TA = -55C
-100 -200
4 6 8 10 12 14 TOTAL SUPPLY VOLTAGE (V)
16
18
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 INPUT COMMON MODE VOLTAGE (V)
5
600012 G05
60012 G06
Output Saturation Voltage vs Load Current (Output High)
1.0 VS = 5V, 0V INPUT OVERDRIVE = 30mV
Output Saturation Voltage vs Load Current (Output Low)
1.0 VS = 5V, 0V INPUT OVERDRIVE = 30mV
TA = 25C TA = 125C 0.1 TA = -55C
0.01 0.001
0.01 0.1 1 SOURCING LOAD CURRENT (mA)
10
60012 G08
0.01 0.001
0.01 0.1 1 SINKING LOAD CURRENT (mA)
10
60012 G08
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LT6000/LT6001/LT6002 TYPICAL PERFOR A CE CHARACTERISTICS
Output Saturation Voltage vs Input Overdrive
100 OUTPUT SATURATION VOLTAGE (mV) 90 80 70 60 50 40 30 20 10 0 0 5 15 20 25 10 INPUT OVERDRIVE (mV) 30 OUTPUT HIGH OUTPUT LOW
OUTPUT SHORT-CIRCUIT CURRENT (mA)
12 10 8
TA = 25C TA = 125C TA = -55C
OUTPUT SHORT-CIRCIUT CURRENT (mA)
VS = 5V, 0V NO LOAD
0.1Hz to 10Hz Output Voltage Noise
VS = 2.5V
100
NOISE VOLTAGE (nV/Hz)
90 VCM = 4.5V 80 VCM = 2.5V
INPUT NOISE CURRENT DENSITY (fA/Hz)
NOISE VOLTAGE (500nV/DIV)
0
1
2
3
4567 TIME (SECONDS)
Open-Loop Gain
60
CHANGE IN INPUT OFFSET VOLTAGE (V)
CHANGE IN INPUT OFFSET VOLTAGE (V)
CHANGE IN INPUT OFFSET VOLTAGE (V)
40 20 0 -20 -40 -60
VS = 1.8V, 0V VCM = 0.5V TA = 25C
RL = 10k RL = 100k
0
0.3
0.6 0.9 1.2 OUTPUT VOLTAGE (V)
8
UW
60012 G10
Output Short-Circuit Current vs Total Supply Voltage (Sourcing)
14 VCM = 0.5V OUTPUT SHORTED TO V-
10
Output Short-Circuit Current vs Total Supply Voltage (Sinking)
VCM = 0.5V OUTPUT SHORTED TO V+
8 TA = 125C 6 TA = 25C 4 TA = -55C 2
6 4 2 0 1 4 TOTAL SUPPLY VOLTAGE (V) 2 3 5
60012 G11
0
1
3 2 4 TOTAL SUPPLY VOLTAGE (V)
5
60012 G12
Noise Voltage Density vs Frequency
VS = 5V, 0V TA = 25C
1000
Input Noise Current vs Frequency
VS = 5V, 0V TA = 25C
100
VCM = 4.5V
70
VCM = 2.5V
60
8
9
10
50 1 10 100 FREQUENCY (Hz) 1000
60012 G14
10 1 10 100 FREQUENCY (Hz) 1000
60012 G15
60012 G13
Open-Loop Gain
40 200 VS = 5V, 0V VCM = 2.5V TA = 25C 150 100 50 0 -50 -100 -150
Open-Loop Gain
VS = 2.5V TA = 25C RL = 10k
20
0
RL = 10k RL = 100k
RL = 100k
-20
1.5
1.8
-40
0
1
3 4 2 OUTPUT VOLTAGE (V)
5
60012 G17
- 200 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 OUTPUT VOLTAGE (V)
2
2.5
60012 G16
20012 G18
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LT6000/LT6001/LT6002 TYPICAL PERFOR A CE CHARACTERISTICS
Gain Bandwidth and Phase Margin vs Temperature
f = 1kHz PHASE MARGIN VS = 1.8V, 0V VCM = 0.5V VS = 5V, 0V VCM = 2.5V
GAIN BANDWIDTH (kHz)
SLEW RATE (V/ms)
GAIN (dB)
80 VS = 5V, 0V 70 VCM = 2.5V 60 50 VS = 1.8V, 0V 40 VCM = 0.5V 30 GAIN BANDWIDTH 20 10 75 100 0 50 -50 -25 25 TEMPERATURE (C)
Gain Bandwidth and Phase Margin vs Supply Voltage
RF = RG = 100k AV = -1 f = 1kHz PHASE MARGIN 70 65 60 55 50
COMMON MODE REJECTION RATIO (dB)
OVERSHOOT (%)
GAIN BANDWIDTH (kHz)
80 70 60 50 40 30 0 2 6 4 8 10 12 14 16 TOTAL SUPPLY VOLTAGE (V) 18 GAIN BANDWIDTH
Power Supply Rejection Ratio vs Frequency
110
COMMON MODE REJECTION RATIO (dB)
VS = 2.5V TA = 25C
90
OUTPUT IMPEDANCE (k)
OUTPUT IMPEDANCE ()
70 50 30
POSITIVE SUPPLY
NEGATIVE SUPPLY
10 -10 0.01
0.1
1 10 FREQUENCY (kHz)
UW
80 75 70 65 60 55 50 45 125
60012 G21
600012 G36
Slew Rate vs Temperature
35 30 25 20 15 10 5 -50 -25
Gain and Phase vs Frequency
70 120 PHASE VCM = 2.5V VCM = 4.5V VCM = 2.5V VCM = 4.5V 100 80 60 60 50 40 30 20 10 0 -10 -20 GAIN VS = 5V, 0V RF = RG = 100k AV = -1 1 10 100 FREQUENCY (kHz)
45
PHASE MARGIN (DEG)
AV = -1 RF = RG = 100k RISING VS = 5V, 0V RISING VS = 1.8V, 0V FALLING VS = 1.8V, 0V FALLING VS = 5V, 0V
PHASE (DEG)
40 20 0 -20 -40 -60 -80 1000
60012 G19
50 25 75 0 TEMPERATURE (C)
100
125
-30 0.1
60012 G22
Capacitive Load Handling Overshoot vs Capacitive Load
50 VS = 5V, 0V 45 VCM = 2.5V 40 35 30 25 20 15 10 5 0 10 100 1000 CAPACITIVE LOAD (pF) 10000
60012 G23
Common Mode Rejection Ratio vs Frequency
100 90 80 70 60 50 40 30 0.1 VS = 2.5V TA = 25C
PHASE MARGIN (DEG)
AV = 1 AV = 2
AV = 5
1 10 FREQUENCY (kHz)
100
60012 G24
Output Impedance vs Frequency
10000 VS = 2.5V TA = 25C
Disabled Output Impedance vs Frequency (LT6000/LT6001DD)
1000 VS = 2.5V VPIN6(SHDN) = -2.5V
1000 AV = 10
100
100
10
AV = 1
10
1
1
100
60012 G25
0.1 0.01
0.1
1 10 FREQUENCY (kHz)
100
60012 G26
0 0.01
0.1
1 10 FREQUENCY (kHz)
100
60012 G27
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LT6000/LT6001/LT6002 TYPICAL PERFOR A CE CHARACTERISTICS
Large-Signal Response
4.5V
1.5V 20mV/DIV
0.5V
AV = 1 VS = 5V, 0V CL = 100pF RL = 10k
100s/DIV
Total Supply Current vs SHDN Pin Voltage (LT6001DD)
SUPPLY CURRENT BOTH AMPLIFIERS (A) VS = 1.8V, 0V TA = 125C
SUPPLY CURRENT BOTH AMPLIFIERS (A)
50
40
30 TA = 25C 20 TA = -55C
10
0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 SHDN PIN VOLTAGE (V)
60012 G31
Supply Current vs SHDN Pin Voltage (LT6000)
30 25 SUPPLY CURRENT (A) 20 15 10 5 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 SHDN PIN VOLTAGE (V)
60012 G37
VS = 1.8V, 0V TA = 125C
SUPPLY CURRENT (A)
10
UW
60012 G28
Large-Signal Response
Small-Signal Response
0.25V
AV = 1 VS = 1.8V, 0V CL = 100pF RL = 10k
100s/DIV
60012 G29
AV = 1 VS = 2.5V CL = 100pF RL = 100k
10s/DIV
60012 G30
Total Supply Current vs SHDN Pin Voltage (LT6001DD)
60 50 40 TA = 25C 30 TA = -55C 20 10 0 -5 -4 -3 -2 -1 0 1 2 3 SHDN PIN VOLTAGE (V) 4 5 VS = 5V TA = 125C
Shutdown Response (LT6000/LT6001DD)
VSHDN 0V
VOUT 0V VIN = 1V AV = 1 VS = 1.8V, 0V RL = 100k 500s/DIV
60012 G33
60012 G32
Supply Current vs SHDN Pin Voltage (LT6000)
30 25 20 15 TA = -55C 10 5 0 -5 -4 -3 -2 -1 0 1 2 3 SHDN PIN VOLTAGE (V) 4 5 TA = 25C VS = 5V TA = 125C
TA = 25C
TA = -55C
60012 G34
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LT6000/LT6001/LT6002
SI PLIFIED SCHE ATIC
V+ R4 Q16 Q17 Q1 Q2 R5 Q14
R8 7M R1 V- V+ Q7 IN+ SHDN V IN-
+
Q18 Q19
Q20 Q8 R6
APPLICATIO S I FOR ATIO
Supply Voltage
The positive supply of the LT6000/LT6001/LT6002 should be bypassed with a small capacitor (about 0.01F) within an inch of the pin. When driving heavy loads, an additional 4.7F 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, VCM, between the negative supply to approximately 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
U
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W
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CM Q10 R2 30k Q11
Q3
Q4
Q5
Q6
C1
COMPLEMENTARY DRIVE GENERATOR
OUT
R3 D3 30k
Q12
Q13
V-
Q9 R7
Q15
V-
Figure 1
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 complementary 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.
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LT6000/LT6001/LT6002
APPLICATIO S I FOR ATIO
The input offset voltage changes depending on which input stage is active; input offset voltage is trimmed on both input stages, and is guaranteed to be 600V max in the PNP stage. By trimming the input offset voltage of both input stages, the input offset voltage over the entire common mode range (CMRR) is typically 400V, maintaining the precision characteristics of the amplifier. The input stage of the LT6000/LT6001/LT6002 incorporates phase reversal protection to prevent wrong polarity outputs from occurring when the inputs are driven up to 2V below the negative rail. 30k protective resistors are included in the input leads so that current does not become excessive when the inputs are forced below V- or when a large differential signal is applied. Input current should be limited to 10mA when the inputs are driven above the positive rail. Output The output of the LT6000/LT6001/LT6002 can swing to within 30mV of the positive rail with no load and within 30mV of the negative rail with no load. When monitoring input voltages within 30mV of the positive rail or within 30mV of the negative rail, gain should be taken to keep the output from clipping. The LT6000/LT6001/LT6002 can typically source 10mA on a single 5V supply, sourcing current is reduced to 4mA on a single 1.8V supply as noted in the electrical characteristics. The normally reverse-biased substrate diode from the output to V- will cause unlimited currents to flow when the output is forced below V-. If the current is transient and limited to 100mA, no damage will occur.
VS 30mV VS
20
SUPPLY CURRENT PER AMPLIFIER (A)
+ -
Output High
30mV
Figure 2. Circuits for Start-Up Characteristics
12
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Start-Up and Output Saturation Characteristics Micropower op amps are often not micropower during start-up characteristics or during output saturation. This can wreak havoc on limited current supplies, in the worst case there may not be enough supply current available to take the system up to nominal voltages. Also, when the output saturates, the part may draw excessive current and pull down the supplies, compromising rail-to-rail performance. Figure 1 shows the start-up characteristics of the LT6000/LT6001/LT6002 for three limiting cases. The circuits are shown in Figure 2. One circuit creates a positive offset forcing the output to come up saturated high. Another circuit creates a negative offset forcing the output to come up saturated low, while the last circuit brings the output up at 1/2 supply. In all cases, the supply current is well controlled and is not excessive when the output is on either rail.
18 16 14 12 10 8 6 4 2 0 0 0.5 1 1.5 2 2.5 3 3.5 4 SUPPLY VOLTAGE (V) 4.5 5 OUTPUT HIGH OUTPUT AT VS/2 OUTPUT LOW
60012 F01
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Figure 1. Start-Up Characteristics
VS VS/2
+ -
Output Low
+ -
60012 F02
Output at VS/2
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LT6000/LT6001/LT6002
APPLICATIO S I FOR ATIO
The LT6000/LT6001/LT6002 outputs can swing to within a respectable 30mV of each rail and draw virtually no excessive supply current. Figure 3 compares the dual LT6001 to a competitive part. Both op amps are in unity gain and their outputs are driven into each rail. The supply current is shown when the op amps are in linear operation and when they are driven into each rail. As can be seen from Figure 3, the supply current of the competitive part increases 3-fold or 5-fold depending on which rail the output goes to whereas the LT6001 draws virtually no excessive current.
VS = 2.5V, AV = 1 COMPETITIVE PART VIN
+ -
4 3 2 1 0 -1 -2 -3 -3
LT6001
SUPPLY CURRENT PER AMPLIFIER
70 60 50 40 30 20 10
VOUT (V)
VOUT
-2
-1
0 VIN (V)
1
2
3
60012 F03
Figure 3. VOUT and ICC vs Input Voltage
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Gain The open-loop gain is almost independent of load when the output is sourcing current. This optimizes performance in single supply applications where the load is returned to ground. The typical performance curve of Open-Loop Gain for various loads shows the details. Shutdown The single LT6000 and the 10-lead dual LT6001 include a shutdown feature that disables the part reducing quiescent current and makes the output high impedance. The devices can be shut down by bringing the SHDN pin within 0.3V of V-. The amplifiers are guaranteed to shut down if the SHDN pin is brought within 0.3V of V-. The exact switchover point will be a function of the supply voltage. See the Typical Performance Characteristics curves Supply Current vs Shutdown Pin Voltage. When shut down the total supply current is about 0.8A and the output leakage current is 20nA (V- VOUT V+). For normal operation the SHDN pin should be tied to V+. It can be left floating, however, parasitic leakage currents over 1A at the SHDN pin may inadvertently place the part into shutdown.
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ICC (A)
13
LT6000/LT6001/LT6002
TYPICAL APPLICATIO U
Gain of 100 Amplifier (400kHz GBW on 30A Supply)
0.9V (NiMH) VIN 3
+ -
8 1 5
1/2 LT6001 2
+
1/2 LT6001 7 OUT
-0.9V (NiMH) 90.9k 10k
6
-
90.9k
60012 TA02a
10k
Gain vs Frequency
60 50 40 30
GAIN (dB)
20 10 0 -10 -20 -30 -40 100 1k 10k 100k FREQUENCY (Hz) 1M
60012 TA02b
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LT6000/LT6001/LT6002
PACKAGE DESCRIPTIO U
DCB Package 6-Lead Plastic DFN (2mm x 3mm)
(Reference LTC DWG # 05-08-1715)
0.70 0.05 PACKAGE OUTLINE 0.25 0.05 0.50 BSC 1.35 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 2.00 0.10 (2 SIDES) R = 0.05 TYP R = 0.115 TYP 4 6 0.40 0.10 3.00 0.10 (2 SIDES) PIN 1 BAR TOP MARK (SEE NOTE 6) 3 0.200 REF 0.75 0.05 1 1.65 0.10 (2 SIDES) PIN 1 NOTCH R0.20 OR 0.25 x 45 CHAMFER
(DCB6) DFN 0405
3.55 0.05
1.65 0.05 (2 SIDES)
2.15 0.05
0.25 0.05 0.50 BSC
1.35 0.10 (2 SIDES) 0.00 - 0.05 BOTTOM VIEW--EXPOSED PAD
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
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LT6000/LT6001/LT6002
PACKAGE DESCRIPTIO U
MS8 Package 8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660)
0.889 0.127 (.035 .005) 3.20 - 3.45 (.126 - .136)
5.23 (.206) MIN
0.42 0.038 (.0165 .0015) TYP
0.65 (.0256) BSC
3.00 0.102 (.118 .004) (NOTE 3)
8
7 65
0.52 (.0205) REF
RECOMMENDED SOLDER PAD LAYOUT
DETAIL "A" 0 - 6 TYP
4.90 0.152 (.193 .006)
0.254 (.010) GAUGE PLANE
3.00 0.102 (.118 .004) (NOTE 4)
0.53 0.152 (.021 .006) DETAIL "A" 0.18 (.007) SEATING PLANE
1
23
4
1.10 (.043) MAX
0.86 (.034) REF
0.65 (.0256) NOTE: BSC 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
0.22 - 0.38 (.009 - .015) TYP
0.127 0.076 (.005 .003)
MSOP (MS8) 0204
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LT6000/LT6001/LT6002
PACKAGE DESCRIPTIO U
DD Package 10-Lead (3mm x 3mm) Plastic DFN
(Reference LTC DWG # 05-08-1699)
0.675 0.05 PACKAGE OUTLINE 0.25 0.05 0.50 BSC 2.38 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS R = 0.115 TYP 6 0.38 0.10 10 3.00 0.10 (4 SIDES) PIN 1 TOP MARK (SEE NOTE 6) 5 0.200 REF 0.75 0.05 2.38 0.10 (2 SIDES) BOTTOM VIEW--EXPOSED PAD 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 1 1.65 0.10 (2 SIDES)
(DD10) DFN 1103
3.50 0.05 1.65 0.05 2.15 0.05 (2 SIDES)
0.25 0.05 0.50 BSC
0.00 - 0.05
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LT6000/LT6001/LT6002
PACKAGE DESCRIPTIO U
GN Package 16-Lead Narrow Plastic SSOP
(Reference LTC DWG # 05-08-1641)
.045 .005 .189 - .196* (4.801 - 4.978) 16 15 14 13 12 11 10 9 .009 (0.229) REF .150 - .165 .229 - .244 (5.817 - 6.198) .0165 .0015 .150 - .157** (3.810 - 3.988) .0250 BSC 1 23 4 56 7 8 .004 - .0098 (0.102 - 0.249)
.254 MIN
RECOMMENDED SOLDER PAD LAYOUT
.015 .004 x 45 (0.38 0.10)
.007 - .0098 (0.178 - 0.249) .016 - .050 (0.406 - 1.270) NOTE: 1. CONTROLLING DIMENSION: INCHES INCHES 2. DIMENSIONS ARE IN (MILLIMETERS) 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 0 - 8 TYP
.0532 - .0688 (1.35 - 1.75)
.008 - .012 (0.203 - 0.305) TYP
.0250 (0.635) BSC
GN16 (SSOP) 0204
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LT6000/LT6001/LT6002
PACKAGE DESCRIPTIO U
DHC Package 16-Lead (5mm x 5mm) Plastic DFN
(Reference LTC DWG # 05-08-1706)
0.65 0.05 3.50 0.05 PACKAGE OUTLINE 0.25 0.05 0.50 BSC 4.40 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 5.00 0.10 (2 SIDES) R = 0.20 TYP 3.00 0.10 (2 SIDES) PIN 1 TOP MARK (SEE NOTE 6) 8 0.200 REF 0.75 0.05 4.40 0.10 (2 SIDES) BOTTOM VIEW--EXPOSED PAD 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 1 0.25 0.05 0.50 BSC 1.65 0.10 (2 SIDES) PIN 1 NOTCH
(DHC16) DFN 1103
1.65 0.05 2.20 0.05 (2 SIDES)
R = 0.115 TYP 9 16
0.40 0.10
0.00 - 0.05
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LT6000/LT6001/LT6002
TYPICAL APPLICATIO
2M
VIN
FREQUENCY OUT 7.5Hz/mV * VIN LINEARITY 5%, VIN 20mV TO 800mV ISUPPLY 60A TO 100A
MUX Amplifier
1.8V VIN1
+ -
LT6000 SHDN VOUT
1.8V VIN2
+ -
LT6000 SHDN
60012 TA04a
INPUT SELECT SN74LVC2604
RELATED PARTS
PART NUMBER LT2178/LT2179 LT1490A/LT1491A LT1494/LT1495/LT1496 LT1672/LT1673/LT1674 LT1782 DESCRIPTION 17A Dual/Quad Single Supply Op Amps 50A Dual/Quad Over-The-Top Rail-to-Rail Input and Output Op Amps 1.5A Max Single/Dual/Quad Over-The-Top Precision Rail-to-Rail Input and Output Op Amps 2A Max, AV 5, Single/Dual/Quad Over-The-Top Precision Rail-to-Rail Input and Output Op Amps Micropower, Over-The-Top SOT-23 Rail-to-Rail Input and Output Op Amps
(R)
Over-The-Top is a registered trademark of Linear Technology Corporation.
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Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507
-
6
A1 1/2 LT6001 4
+
5
+
1M
3
A2 1/2 LT6001
1
TP0610
1M VREF 8
42.2k VREF 1000pF DIODES: CENTRAL SEMI CMOD3003 x4
7 0.1F
2N7002 VS 4.3V TO 20V 0.1F 42.2k
4 LT1790-4.096
VOUT
INPUT SELECT
VS = 1.8V 5ms/DIV VIN1 = 250Hz AT 1VP-P VIN2 = 500Hz AT 0.5VP-P INPUT SELECT = 25Hz AT 1.8VP-P
www.linear.com
-
-
1M
2
0.1F
+
U
Low Power V-to-F Converter
VREF VREF 2M 42.2k 1M 3 2M VREF 7
(R)
LTC 1440 5 2 1 6
8
VOUT
6 1F
60012 TA03
VREF
1
2
MUX Amplifier Waveforms
60012 TA04b
COMMENTS 120V VOS(MAX), Gain Bandwidth = 60kHz 950V VOS(MAX), Gain Bandwidth = 200kHz 375V VOS(MAX), Gain Bandwidth = 2.7kHz Gain of 5 Stable, Gain Bandwidth = 12kHz SOT-23, 800V VOS(MAX), IS = 55A (Max), Gain Bandwidth = 200kHz, Shutdown Pin
LT 0406 REV A * PRINTED IN USA
(c) LINEAR TECHNOLOGY CORPORATION 2005

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