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LT1006 Precision, Single Supply Op Amp
FEATURES
DESCRIPTIO

Single Supply Operation Input Voltage Range Extends to Ground Output Swings to Ground while Sinking Current Guaranteed Offset Voltage: 50V Max Guaranteed Low Drift: 1.3V/C Max Guaranteed Offset Current: 0.5nA Max Guaranteed High Gain 5mA Load Current: 1.5 Million Min 17mA Load Current: 0.8 Million Min Guaranteed Low Supply Current: 520A Max Supply Current can be Reduced by a Factor of 4 Low Voltage Noise, 0.1Hz to 10Hz: 0.55VP-P Low Current Noise-- Better than OP-07: 0.07pA/Hz at 10Hz High Input Impedance: 250M Min Minimum Supply Voltage: 2.7V Min
The LT (R)1006 is the first precision single supply operational amplifier. Its design has been optimized for single supply operation with a full set of specifications at 5V. Specifications at 15V are also provided. The LT1006 has a low offset voltage of 20V, drift of 0.2V/C, offset current of 120pA, gain of 2.5 million, common mode rejection of 114dB and power supply rejection of 126dB. Although supply current is only 340A, a novel output stage can source or sink in excess of 20mA while retaining high voltage gain. Common mode input range includes ground to accommodate low ground-referenced inputs from strain gauges or thermocouples, and output can swing to within a few millivolts of ground. If a higher slew rate (in excess of 1V/s) or micropower operation (supply current down to 90A) is required, the operating currents can be modified by connecting an external optional resistor to Pin 8. For similar single supply precision dual and quad op amps, please see the LT1013/LT1014 data sheet. For micropower dual and quad op amps, please see the LT1078/LT1079 data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S

Low Power Sample-and-Hold Circuits Battery-Powered Precision Instrumentation Strain Gauge Signal Conditioners Thermocouple Amplifiers 4mA to 20mA Current Loop Transmitters Active Filters
TYPICAL APPLICATIO
9V
LT1006 Single Supply, Micropower Sample and Hold
Distribution of Input Offset Voltage
20 18 VS = 5V, 0V TA = 25C 350 LT1006s TESTED FROM TWO RUNS J AND N PACKAGES
360k
1/4 CD4066 390 S3 S4
1/4 CD4066 390
360k
UNITS (%)
7 6 OUTPUT 4 20s 10s 1mV 250A 5.0mA 800A
8 7 2 1/2 CD4066 8 A1 LT1006 6 S1 S2 4 1/2 CD4066 SAMPLE-HOLD COMMAND HIGH = SAMPLE LOW = HOLD
LT1006 * TA01
2
-
A2 LT1006
- +
3 0.01F
INPUT 0V TO 5V
3
+
ACQUISITION TIME HOLD SETTLING TIME S-H OFFSET HOLD SUPPLY CURRENT SAMPLE SUPPLY CURRENT 1kHz SAMPLE RATE CURRENT
U
16 14 12 10 8 6 4 2 0 -80 40 80 -40 0 INPUT OFFSET VOLTAGE (V)
LT1006 * G01
U
U
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LT1006
ABSOLUTE
AXI U
RATI GS
Supply Voltage ...................................................... 22V Input Voltage ............... Equal to Positive Supply Voltage Input Voltage ............ 5V Below Negative Supply Voltage Differential Input Voltage ......................................... 30V Output Short-Circuit Duration .......................... Indefinite
PACKAGE/ORDER I FOR ATIO
TOP VIEW ISY SET (NOTE 3) VOS 1 TRIM -IN 2 +IN 3 4 V- (CASE) 8 - + 7 V+ 6 OUT 5 VOS TRIM (NOTE 4)
ORDER PART NUMBER LT1006AMH LT1006MH LT1006ACH LT1006CH
+IN 3 V- 4 N8 PACKAGE 8-LEAD PDIP
TJMAX = 100C, JA = 130C/W (N8) TJMAX = 150C, JA = 200C/W (S8) J8 PACKAGE 8-LEAD CERDIP TJMAX = 100C, JA = 130C/W
H PACKAGE 8-LEAD TO-5 METAL CAN TJMAX = 150C, JA = 150C, JC = 45C
OBSOLETE PACKAGES
Consider the N8 or S8 Package for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
SYMBOL VOS VOS Time IOS IB en PARAMETER Input Offset Voltage LT1006S8 Long-Term Input Offset Voltage Stability Input Offset Current Input Bias Current Input Noise Voltage Input Noise Voltage Density in Input Noise Current Density Input Resistance Differential Mode Common Mode 0.1Hz to 10Hz fO = 10Hz fO = 1000Hz fO = 10Hz (Note 2) CONDITIONS
VS = 5V, VCM = 0V, VOUT = 1.4V, TA = 25C, unless otherwise noted.
MIN LT1006AM/AC TYP MAX 20 0.4 50 MIN LT1006M/C TYP MAX 30 80 0.5 0.7 0.5 15 0.15 10 0.55 32 25 23 22 0.08 100 300 4 32 25 0.9 25 80 400 UNITS V V V/Mo V/Mo nA nA VP-P nV/Hz nV/Hz pA/Hz M G
LT1006S8 0.12 9 0.55 23 22 0.07 180 400 5
2
+ -
U
U
W
WW U
W
(Note 1)
Operating Temperature Range LT1006AM/LT1006M (OBSOLETE)....- 55C to 125C LT1006AC/LT1006C/LT1006S8 ............... 0C to 70C Storage Temperature Range ................. - 65C to 150C Lead Temperature (Soldering, 10 sec).................. 300C
TOP VIEW VOS 1 TRIM -IN 2 8 7 6 5 ISY SET (NOTE 3) V+ OUT VOS TRIM (NOTE 4)
ORDER PART NUMBER LT1006CN8 LT1006S8 S8 PART MARKING 1006 LT1006AMJ8 LT1006MJ8 LT1006ACJ8 LT1006CJ8
S8 PACKAGE 8-LEAD PLASTIC SO
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LT1006
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER Input Voltage Range CMRR PSRR AVOL Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing VCM = 0V to 3.5V CONDITIONS
VS = 5V, VCM = 0V, VOUT = 1.4V, TA = 25C, unless otherwise noted.
MIN 3.5 0 100 106 1.0 0.5 LT1006AM/AC TYP MAX 3.8 - 0.3 114 126 2.5 2.0 15 5 220 4.4 4.0 0.4 340 90 2.7 520 2.7 25 10 350 4.0 3.4 0.25 MIN 3.5 0 97 103 0.7 0.3 LT1006M/C TYP MAX 3.8 - 0.3 112 124 2.0 1.8 15 5 220 4.4 4.0 0.4 350 90 570 25 10 350 UNITS V V dB dB V/V V/V mV mV mV V V V/s A A V
VS = 2V to 18V, VO = 0V VO = 0.03V to 4V, RL = 10k VO = 0.03V to 3.5V, RL = 2k Output Low, No Load Output Low, 600 to GND Output Low, ISINK = 1mA Output High, No Load Output High, 600 to GND
4.0 3.4 0.25
SR IS
Slew Rate Supply Current Minimum Supply Voltage RSET = RSET = 180k Pin 8 to Pin 7 (Note 3)
The denotes the specifications which apply over the full operating temperature range. VS = 5V, 0V; VCM = 0.1V; VO = 1.4V; -55C TA 125C, unless otherwise noted.
SYMBOL VOS VOS Temp IOS IB AVOL CMRR PSRR PARAMETER Input Offset Voltage Input Offset Voltage Drift Input Offset Current Input Bias Current Large-Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Maximum Output Voltage Swing IS Supply Current VO = 0.05V to 3.5V, RL = 2k VCM = 0.1V to 3.2V VS = 2V to 18V, VO = 0V Output Low, 600 to GND Output High, 600 to GND CONDITIONS

MIN
LT1006AM TYP 40 0.2 0.4 13
MAX 180 1.3 2.0 25
MIN
LT1006M TYP 60 0.3 0.5 16
MAX 250 1.8 4.0 40
UNITS V V/C nA nA V/V dB dB

0.25 90 100 3.2
0.8 103 117 6 3.8 380 15
0.15 87 97 3.1 630
0.7 102 116 6 3.8 400 18 680
mV V A
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LT1006
ELECTRICAL CHARACTERISTICS
SYMBOL VOS PARAMETER Input Offset Voltage CONDITIONS J8/H Package N8 Package S8 Package J8/H Package N8 Package S8 Package
The denotes the specifications which apply over the full operating temperature range. VS = 5V, 0V; VCM = 0V; VO = 1.4V; 0C TA 70C, unless otherwise noted.
MIN

LT1006AC TYP 30
MAX 110
MIN
LT1006C TYP 45 50 110 0.3 0.5 0.7 0.3 12
MAX 160 190 560 1.8 2.5 3.5 2.5 30
UNITS V V V V/C V/C V/C nA nA V/V dB dB
VOS Temp IOS IB AVOL CMRR PSRR
Input Offset Voltage Drift
0.2
1.3
Input Offset Current Input Bias Current Large-Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Maximum Output Voltage Swing VO = 0.04V to 3.5V, RL = 2k VCM = 0V to 3.4V VS = 2V to 18V, VO = 0V Output Low, 600 to GND Output High, 600 to GND
0.25 11 0.35 96 101 3.3 1.3 109 120 6 3.9 350
1.2 20 0.25 92 97 13 3.2 570

1.2 108 118 6 3.9 360 13 620
mV V A
IS
Supply Current
VS = 15V, TA = 25C, unless otherwise noted.
SYMBOL VOS IOS IB PARAMETER Input Offset Voltage LT1006S8 Input Offset Current Input Bias Current Input Voltage Range CMRR PSRR AVOL VOUT SR IS Common Mode Rejection Ratio Power Supply Rejection Ratio Large Signal Voltage Gain Maximum Output Voltage Swing Slew Rate Supply Current VCM = +13.5V, -15V VS = 2V to 18V, VO = 0V VO = 10V, RL = 2k VO = 10V, RL = 600 RL = 2k RSET = RSET = 390 Pin 8 to Pin 4 13.5 -15.0 100 106 1.5 0.8 13 0.25 1.0 0.1 7.5 13.8 -15.3 117 126 5.0 1.5 14 0.4 1.2 360 540 0.5 12.0 13.5 -15.0 97 103 1.2 0.5 12.5 0.25 1.0 CONDITIONS MIN LT1006AM/AC TYP MAX 30 100 MIN LT1006M/C TYP MAX 50 100 0.15 8 13.8 -15.3 116 124 4.0 1.0 14 0.4 1.2 360 600 180 525 0.9 20 UNITS V V nA nA V V dB dB V/V V/V V V/s V/s A
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LT1006
ELECTRICAL CHARACTERISTICS
SYMBOL VOS VOS Temp IOS IB AVOL CMRR PSRR PARAMETER Input Offset Voltage Input Offset Voltage Drift Input Offset Current Input Bias Current Large-Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Maximum Output Voltage Swing IS Supply Current CONDITIONS
The denotes the specifications which apply over the full operating temperature range. VS = 15V, -55C TA 125C, unless otherwise noted.
MIN

LT1006AM TYP 80 0.5 0.2 9
MAX 320 2.2 2.0 18
MIN
LT1006M TYP 110 0.6 0.3 11
MAX 460 2.8 3.0 27
UNITS V V/C nA nA V/V dB dB V

VO = 10V, RL = 2k VCM = +13V, -14.9V VS = 2V to 18V, VO = 0V RL = 2k

0.5 97 100 12
1.5 114 117 13.8 400 650
0.25 94 97 11.5
1.0 113 116 13.8 400 750
A
The denotes the specifications which apply over the full operating temperature range. VS = 15V, 0C TA 70C, unless otherwise noted.
SYMBOL VOS PARAMETER Input Offset Voltage CONDITIONS J8/H Package N8 Package S8 Package J8/H Package N8 Package S8 Package

MIN
LT1006AC TYP 50
MAX 200
MIN
LT1006C TYP 75 80 150 0.6 0.7 1.0 0.25 10
MAX 300 330 730 2.8 3.5 4.5 2 23
UNITS V V V V/C V/C V/C nA nA V/V dB dB V
VOS Temp IOS IB AVOL CMRR PSRR
Input Offset Voltage Drift
0.5
2.2
Input Offset Current Input Bias Current Large-Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Maximum Output Voltage Swing VO = 10V, RL = 2k VCM = 13V, -15V VS = 2V to 18V, VO = 0V RL = 2k
0.15 8 1 98 101 12.5 3 116 120 13.9 370
1 15 0.7 94 97 11.5 600

2.5 114 118 13.8 380 660
IS
Supply Current
A
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: This parameter is guaranteed by design and is not tested. Note 3: Regular operation does not require an external resistor. In order to program the supply current for low power or high speed operation, connect an external resistor from Pin 8 to Pin 7 or from Pin 8 to Pin 4, respectively. Supply current specifications (for RSET = 180k) do not include current in RSET.
Note 4: Optional offset nulling is accomplished with a potentiometer connected between the trim terminals and the wiper to V-. A 10k pot (providing a null range of 6mV) is recommended for minimum drift of nulled offset voltage with temperature. For increased trim resolution and accuracy, two fixed resistors can be used in conjunction with a smaller potentiometer. For example, two 4.7k resistors tied to Pins 1 and 5, with a 500 pot in the middle, will have a null range of 150V.
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LT1006 TYPICAL PERFOR A CE CHARACTERISTICS
Offset Voltage Drift with Temperature of Representative Units
150 120 90
OFFSET VOLTAGE (V)
VS = 5V, 0V VCM = 0.1V INPUT OFFSET VOLTAGE (V) RS 1.0 RS
60 30 0 -30 -60 -90
OFFSET VOLTAGE (V)
-120 -150 -50 -25 0.01 50 25 0 75 TEMPERATURE (C) 100 125 1k
Warm-Up Drift
2.0
10M
CHANGE IN OFFSET VOLTAGE (V)
VS = 5V, 0V TA = 25C VOLTAGE GAIN (V/V) VOLTAGE GAIN (V/V)
TA = -55C TA = 25C 1M TA = 125C
1.5
1.0
0.5 LT1006 METAL CAN (H) PACKAGE LT1006 CERDIP (J) PACKAGE 0 0 2 3 1 TIME AFTER POWER ON (MIN) 4
LT1006 * G05
Input Bias Current vs Temperature
18 15 VCM = 0V 0.5
COMMON MODE INPUT VOLTAGE, VS = 5V, 0V (V)
12 VS = 5V, 0V 9 6 3 0 -50 -25 VS = 15V
INPUT OFFSET CURRENT (nA)
INPUT BIAS CURRENT (nA)
25 75 0 TEMPERATURE (C)
50
6
UW
LT1006 * G02
Offset Voltage vs Balanced Source Resistor
10 VS = 5V, 0V, -55C TO 125C 500 400 300 200 100 0 -100 -200
VOS vs Common Mode Voltage vs Temperature
VS = 5V, 0V
- +
1 T = 125C 1 T = 25C 2 T = 125C 1 POSITIVE VOS 2 NEGATIVE VOS 1.0 0 0.4 0.8 COMMON MODE INPUT VOLTAGE (V) 1.4 2 T = 25C
VS = 15V, -55C TO 125C 0.1
VS = 15V, 25C VS = 5V, 0V, 25C 3k 10k 30k 100k 300k 1M 3M 10M BALANCED SOURCE RESISTANCE, RS ()
LT1006 * G03
-300 -0.4
LT1006 * G04
Voltage Gain vs Load Resistance, VS = 5V, 0V
10M
Voltage Gain vs Load Resistance with VS = 15V
TA = 25C
TA = -55C
1M
TA = 125C
100k 100
1k LOAD RESISTANCE TO GROUND ()
10k
100k 100
1k LOAD RESISTANCE TO GROUND ()
10k
LT1006 * G06
LT1006 * G07
Input Offset Current vs Temperature
5 4 3 2 1 0 -1
VCM = 0V 0.4
Input Bias Current vs Common Mode Voltage
15 10 5 0 -5 VS = 5V, 0V, T = 125C VS = 15V, T = 25C 0 VS = 5V, 0V, T = 25C -10 -15 -24
COMMON MODE INPUT VOLTAGE, VS = 15V (V)
0.3 VS = 5V, 0V VS = 15V
0.2
0.1
100
125
0 -50 -25
50 25 0 75 TEMPERATURE (C)
100
125
-18 -6 -12 INPUT BIAS CURRENT (nA)
LT1006 * G08
LT1006 * G09
LT1006 * G10
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LT1006 TYPICAL PERFOR A CE CHARACTERISTICS
10Hz Voltage Noise Distribution
100 VS = 2.5V TA = 25C 200 UNITS TESTED FROM THREE RUNS
1000 VOLTAGE NOISE DENSITY (nV/Hz) CURRENT NOISE DENSITY (fA/Hz)
300
60
100
CURRENT NOISE
40
20
30
VOLTAGE NOISE 1/f CORNER 2Hz
0 16 28 24 20 VOLTAGE NOISE DENSITY (nV/Hz) 32
10 1 10 100 FREQUENCY (Hz) 1k
LT1006 * G12
NOISE VOLTAGE (100nV/DIV)
80 NUMBER OF UNITS
Supply Current vs Temperature
500
450
SUPPLY CURRENT (A)
SUPPLY CURRENT (A)
SLEW RATE (V/s)
400 VS = 15V 350 VS = 5V, 0V
300
250 -50 -25
50 25 0 75 TEMPERATURE (C)
Output Saturation vs Sink Current vs Temperature
10 V + = 5V TO 30V V - = 0V ISINK = 10mA 1.0 ISINK = 5mA ISINK = 1mA 0.1 ISINK = 100A ISINK = 10A ISINK = 0 0.01 -50 -25 0 25 50 75 100 125
5
MAXIMUM OUTPUT VOLTAGE (V)
SATURATION VOLTAGE (V)
4
TA = 125C TA = 25C
COMMON MODE REJECTION RATIO (dB)
TEMPERATURE (C)
LT1006 * G17
UW
LT1006 * G11
Noise Spectrum
TA = 25C VS = 2V TO 18V
0.1Hz to 10Hz Noise
VS = 2V TO 15V TA = 25C
0
2
4 6 TIME (SEC)
8
10
LT1006 * G13
Reducing Power Dissipation
1000 VS = 5V, 0V SR
SLEW RATE (V/s)
Increasing Slew Rate (RSET to V -)
1
10
VS = 15V OR VS = 5V, 0V
10
SUPPLY CURRENT (mA)
ISY* 100 0.1
ISY 1 SR 1
100
125
PIN 8 IS APPROXIMATELY 60mV ABOVE THE NEGATIVE SUPPLY 10 10 5 1 50 CURRENT INJECTED INTO PIN 8 (A)
0.01 0.5
0.1 100
PIN 8 IS APPROXIMATELY 60mV ABOVE THE NEGATIVE SUPPLY 1k RSET, PIN 8 TO PIN 4 () 10k
LT1006 * G16
0.1
LT1006 * G14
*ISY DOES NOT INCLUDE CURRENT THROUGH RSET
LT1006 * G15
Maximum Output Swing vs Load Resistor
VS = 5V, 0V
Common Mode Rejection Ratio vs Frequency
120 100 80 60 40 20 0 10 100 1k 10k FREQUENCY (Hz) 100k 1M VS = 5V, 0V VS = 15V TA = 25C
3
TA = - 55C
2
1
0 0.01
0.1 1 LOAD RESISTOR (k)
10
LT1006 * G18
LT1006 * G19
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LT1006 TYPICAL PERFOR A CE CHARACTERISTICS
Voltage Gain vs Frequency
140 120
VOLTAGE GAIN (dB)
20 PHASE
VOLTAGE GAIN (dB)
100 120
PHASE SHIFT (DEGREES)
POWER SUPPLY REJECTION RATIO (dB)
100 80 60 40 20 0 -20 0.01 0.1 1 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
LT1006 * G20
VS = 5V, 0V
VS = 15V
Large Transient Response, VS = 5V, 0V
4V
2V
0V
10s/DIV AV = 1 RL = 4.7k TO 5V INPUT = 0V TO 3.8V
Small-Signal Transient Response, VS = 5V, 0V
100mV
0V
20s/DIV AV = 1 CL = 10pF RL = 600 TO GND INPUT = 0V TO 100mV PULSE
8
UW
TA = 25C CL = 10pF
1006 G23
Gain, Phase vs Frequency
80 TA = 25C VCM = 0V CL = 10pF 15V GAIN 15V 120 100 80 60 40 20
Power Supply Rejection Ratio vs Frequency
10
140 160
NEGATIVE SUPPLY
POSITIVE SUPPLY
0
5V, 0V
5V, 0V
180 200
-10 0.1 0.3 3 1 FREQUENCY (MHz) 10
LT1006 * G21
0 0.1
VS = 15V + 1Vp-p SINE WAVE TA = 25C 1 10 100 1k 10k FREQUENCY (Hz) 100k 1M
LT1006 * G22
Large-Signal Transient Response, VS = 5V, 0V
Large-Signal Transient Response, VS = 15V
4V
2V
5V/DIV
0V
10s/DIV AV = 1 RL = 4.7k TO GROUND INPUT = 0V TO 3.8V
1006 G24
50s/DIV AV = 1
1006 G25
Small-Signal Transient Response, VCC = 2.5V to 15V
20mV/DIV
1006 G26
2s/DIV AV = 1 CL = 10pF
1006 G27
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LT1006
APPLICATIO S I FOR ATIO
The LT1006 is fully specified for single supply operation, (i.e., when the negative supply is 0V). Input common mode range includes ground; the output swings within a few millivolts of ground. Single supply operation, however, can create special difficulties, both at the input and at the output. The LT1006 has specific circuitry which addresses these problems. At the input, the driving signal can fall below 0V-- inadvertently or on a transient basis. If the input is more than a few hundred millivolts below ground, two distinct problems can occur on previous single supply designs, such as the LM124, LM158, OP-20, OP-21, OP-220, OP-221, OP-420: a) When the input is more than a diode drop below ground, unlimited current will flow from the substrate (V- terminal) to the input. This can destroy the unit. On the LT1006, the 400 resistors, in series with the input (see Schematic Diagram), protect the devices even when the input is 5V below ground. b) When the input is more than 400mV below ground (at 25C), the input stage saturates (transistors Q3 and
Voltage Follower with Input Exceeding the Negative Common Mode Range (VS = 5V, 0V)
4V
4V
2V
2V
0V
0V
6VP-P INPUT, -1.5V TO 4.5V
1006 TA11a
Gain 100 Amplifier
5V R
-
LT1006 1mV
99R 100mV 600
LT1006 * TA02
+
U
Q4) and phase reversal occurs at the output. This can cause lock-up in servo systems. Due to a unique phase reversal protection circuitry (Q21, Q22, Q27, Q28), the LT1006's output does not reverse, as illustrated below, even when the inputs are at -1.5V. At the output, the aforementioned single supply designs either cannot swing to within 600mV of ground (OP-20) or cannot sink more than a few microamperes while swinging to ground (LM124, LM158). The LT1006's all-NPN output stage maintains its low output resistance and high gain characteristics until the output is saturated. In dual supply operations, the output stage is crossover distortion free. Since the output cannot go exactly to ground, but can only approach ground to within a few millivolts, care should be exercised to ensure that the output is not saturated. For example, a 1mV input signal will cause the amplifier to set up in its linear region in the gain 100 configuration shown below, but is not enough to make the amplifier function properly in the voltage follower mode.
4V 2V 0V LM324, LM358, OP-20, OP-21 EXHIBIT OUTPUT PHASE REVERSAL
1006 TA11b
W
UU
LT1006 NO PHASE REVERSAL
1006 TA11c
Voltage Follower
5V
-
LT1006 1mV
+
OUTPUT SATURATED 5mV 600
LT1006 * TA03
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LT1006
APPLICATIO S I FOR ATIO
In automated production testing the output is forced to 1.4V by the test loop; offset voltage is measured with a common mode voltage of zero and the negative supply at zero (Pin 4). Without the test loop, these exact conditions cannot be achieved. The test circuit shown ensures that the output will never saturate even with worst-case offset voltages (- 250V over the - 55C to 125C range). The effective common mode input is 0.3V with respect to the negative supply. As indicated by the common mode rejection specifications the difference is only a few microvolts between the two methods of offset voltage measurement.
Test Circuit for Offset Voltage and Offset Drift with Temperature
50k*
4.7V
-
100 LT1006 V0
+
50k* - 0.3V *RESISTORS MUST HAVE LOW THERMOELECTRIC POTENTIAL. **THIS CIRCUIT IS ALSO USED AS THE BURN-IN CONFIGURATION, WITH SUPPLY VOLTAGES INCREASED TO 20V VO = 1000VOS
LT1006 * TA04
Comparator Rise Response Time to 10mV, 5mV, 2mV Overdrives
4 4
OUTPUT (V) 2
0 0 INPUT (mV) -100 VS = 5V, 0V 50s/DIV
1006 TA12a
10
U
Low Supply Operation The minimum guaranteed supply voltage for proper operation of the LT1006 is 2.7V. Typical supply current at this voltage is 320A; therefore, power dissipation is only 860W. Noise Testing For application information on noise testing and calculations, please see the LT1007 or LT1028 data sheet. Supply Current Programming Connecting an optional external resistor to Pin 8 changes the biasing of the LT1006 in order to increase its speed or to decrease its power consumption. If a higher slew rate is required, connect the external resistor for Pin 8 to Pin 4 [see performance curves for Increasing Slew Rate (RSET to V-)]. For lower power consumption, inject a current into Pin 8 (which is approximately 60mV above V-) as shown on the Reducing Power Dissipation plot. This can be accomplished by connecting RSET to the positive supply, or to save additional power, by obtaining the injected current from a low voltage battery. Comparator Applications The single supply operation of the LT1006 and its ability to swing close to ground while sinking current lends itself to use as a precision comparator with TTL compatible output.
Comparator Fall Response Time to 10mV, 5mV, 2mV Overdrives
OUTPUT (V) 2 0 0 INPUT (mV) -100 0 VS = 5V, 0V 50s/DIV
1006 TA12b
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UU
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LT1006
TYPICAL APPLICATIO S
Platinum RTD Signal Conditioner with Curvature Correction
+V V = 5.6V TO 10V 39k 1F LM334 1.21k* IK = 100A 10k* 50k 5C TRIM 1k** 1k** 1N457 12k* 5k 400C TRIM 43.2k** +V
- +
7 8 0.02V TO 4V OUT = 2C TO 400C 0.25C
LT1006 RP 1k @ 0C 1F 4
1k**
1.21M*
RP = ROSEMOUNT 118MF ** = TRW MAR-6 0.1% * = 1% METAL FILM
LT1006 * TA05
3.1k* 200k*
100Hz TRIM 220k** TYP 2k
+
INPUT 0V TO 5V
-
120k** 20k TYP 1MHz TRIM 2F
Q5
= 2N3904 * = 1% METAL FILM ** = 1% METAL FILM, SELECTED = 74C14
Q6 CHARGE PUMP
U
Voltage Controlled Current Source with Ground Referred Input and Output
5V INPUT 3 7 + 0V TO 2V LT1006 2 - 4
6
0.68F
5V 1k
180k
4 8 7
11 1F 12 1F 100
14 1/2 LTC1043 17 0.001F
13 IOUT = 16
VIN 100
OPERATES FROM A SINGLE 5V SUPPLY
LT1006 * TA06
Micropower 1MHz V/F Converter
9V
LM334 2k* VOLTAGE CONTROLLED CURRENT SOURCE 470k 8 47k 12k Q8 2N3906
9V
Q1 TRIGGER NC Q7 1 14 12 11 14 /100 1 12 11
Q2
+
10F Q3 REFERENCE
7
A1 LT1006 4
74C90
74C90
Q4 LT1004-2.5 LT1004-1.2 OUTPUT 0MHz TO 1MHz
0.33F
0.01F
3pF
1N4148
STRAY CAPACITANCE
1000pF (POLYSTYRENE) REFERENCE SWITCH
0.12% LINEARITY 280A QUIESCENT CURRENT 680A AT 1MHz
LT1006 * TA07
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LT1006
TYPICAL APPLICATIO S
Micropower Thermocouple Signal Conditioner with Cold Junction Compensation
4.5V (3AA CELLS)
100k
CATALYST RESEARCH CORP MODEL 2736 2.8V
TYPE J THERMOCOUPLE
5V 10k 5% 16.2k LT1004 1.235V 4 1/2 LTC1043 7 107k 11 3.2k 12 T1 6250 13 14 17 T1 = YELLOW SPRINGS #44201 ALL RESISTORS = TRW MAR-6 0.1% UNLESS NOTED 100k 1F 1F 8 3+ 2 7 6 0V TO 1.000V = 0C TO 100.0C 0.25C 51.1k 500 100C LT1006
1k 0C
12
U
R4 233k* R1 1684* LT1034 1.2V R2 186* 1.8k* R3 RT
56k
+ -
7 8 0V TO 3V OUT = 0C TO 60C 0.75C 5.76M*
LT1006 4
5.98k*
TOTAL POWER CONSUMPTION 500W * = TRW MAR-6 0.1% RT = YELLOW SPRINGS INST. CO MODEL 44007 5k AT 25C
LT1006 * TA08
Linear Thermometer
5V
-
4
16 0.001F
LT1006 * TA09
1006fa
LT1006
TYPICAL APPLICATIO S
5V Precision Instrumentation Amplifier
5V 4
DIFFERENTIAL INPUT 12
0.01F 17 -5V
SCHE ATIC DIAGRA
V+ 7 9k 9k Q5
1.6k Q13
Q6
Q27 +IN 3 -IN 2 400 Q12 400
Q22
Q2
Q1
Q21
Q11 2.7k 2.7k Q9 V
-
75pF
4
LT1006 * SD01
U
+
7 8
5V 3 2 11 C1 1F (EXTERNAL) C2 1F
+ -
8 1 VOUT
LT1006 4 -5V 1F
R1 13 14
R2
16
1/2 LTC1043
CMRR > 120dB AT DC CMRR > 120dB AT 60Hz DUAL SUPPLY OR SINGLE 5V GAIN = 1 + R2/R1 VOS 150V VOS 2V/C T COMMON MODE INPUT VOLTAGE INCLUDES THE SUPPLIES
LT1006 * TA10
W
1.6k Q16 1.6k 100 Q14 Q15 Q32 Q3 Q4 J1 Q33 Q37 Q39 28k Q40 V- Q30 Q35 1k Q38 600 Q36 Q25 Q28 3.9k 21pF Q26 2.5pF 2.4k 18 6 OUTPUT Q41 Q18 Q29 Q7 Q8 Q10 2k Q19 100pF 15pF Q17 2k 1 TRIM 5 TRIM Q20 1.3k Q23 Q24 2k 30 84k Q44 5.4k 2.5k Q34 8 Q42 4pF Q31 Q43 2k 2k
1006fa
W
13
LT1006
PACKAGE DESCRIPTIO U
H Package 8-Lead TO-5 Metal Can (.200 Inch PCD)
(Reference LTC DWG # 05-08-1320)
.335 - .370 (8.509 - 9.398) DIA .305 - .335 (7.747 - 8.509) .040 (1.016) MAX .050 (1.270) MAX GAUGE PLANE .165 - .185 (4.191 - 4.699) REFERENCE PLANE .500 - .750 (12.700 - 19.050) .010 - .045* (0.254 - 1.143) .016 - .021** (0.406 - 0.533) .027 - .045 (0.686 - 1.143) PIN 1 .028 - .034 (0.711 - 0.864) .200 (5.080) TYP .110 - .160 (2.794 - 4.064) INSULATING STANDOFF *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND THE SEATING PLANE .016 - .024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 - 0.610) H8(TO-5) 0.200 PCD 0801
SEATING PLANE
45TYP
J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
CORNER LEADS OPTION (4 PLCS) .405 (10.287) MAX 8 7 6 5
.005 (0.127) MIN
.023 - .045 (0.584 - 1.143) HALF LEAD OPTION .045 - .068 (1.143 - 1.650) FULL LEAD OPTION .300 BSC (7.62 BSC)
.025 (0.635) RAD TYP 1 2 3
.220 - .310 (5.588 - 7.874)
4
.200 (5.080) MAX .015 - .060 (0.381 - 1.524)
.008 - .018 (0.203 - 0.457)
0 - 15
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS
.045 - .065 (1.143 - 1.651) .014 - .026 (0.360 - 0.660) .100 (2.54) BSC
.125 3.175 MIN
J8 0801
OBSOLETE PACKAGES
1006fa
14
LT1006
PACKAGE DESCRIPTIO U
N8 Package 8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.400* (10.160) MAX 8 7 6 5 .255 .015* (6.477 0.381) 1 .300 - .325 (7.620 - 8.255) 2 3 4 .130 .005 (3.302 0.127) .045 - .065 (1.143 - 1.651) .065 (1.651) TYP .120 (3.048) .020 MIN (0.508) MIN .018 .003 (0.457 0.076)
N8 1002
.008 - .015 (0.203 - 0.381) +.035 .325 -.015
(
8.255
+0.889 -0.381
)
.100 (2.54) BSC
INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
NOTE: 1. DIMENSIONS ARE
1006fa
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.
15
LT1006
PACKAGE DESCRIPTIO
.050 BSC
8 N N .245 MIN .160 .005 .228 - .244 (5.791 - 6.197) 1 2 3 N/2
.030 .005 TYP
RECOMMENDED SOLDER PAD LAYOUT
.010 - .020 x 45 (0.254 - 0.508) .008 - .010 (0.203 - 0.254) 0- 8 TYP
.016 - .050 (0.406 - 1.270) NOTE: 1. DIMENSIONS IN
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)
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507
U
S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.189 - .197 (4.801 - 5.004) NOTE 3 7 6 5
.045 .005
.150 - .157 (3.810 - 3.988) NOTE 3 N/2
1
2
3
4
.053 - .069 (1.346 - 1.752)
.004 - .010 (0.101 - 0.254)
.014 - .019 (0.355 - 0.483) TYP
.050 (1.270) BSC
SO8 0502
1006fa LT/TP 1102 1K REV A * PRINTED IN USA
www.linear.com
LINEAR TECHNOLOGY CORPORATION 1988

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