LT1006 Datasheet by Analog Devices Inc.

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L7 I {Mp moms ECHNOLOGY _| L7 L7LJCUMEAB
1
LT1006
1006fa
The LT
®
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 20µV, drift of
0.2µV/°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 340µA, 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/µs) or micropower operation
(supply current down to 90µA) 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.
LT1006 Single Supply, Micropower Sample and Hold
Precision, Single Supply
Op Amp
FEATURES
APPLICATIO S
U
DESCRIPTIO
U
Low Power Sample-and-Hold Circuits
Battery-Powered Precision Instrumentation
Strain Gauge Signal Conditioners
Thermocouple Amplifiers
4mA to 20mA Current Loop Transmitters
Active Filters
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
U
390390S3 S4
S1
9V
3
2
8
76OUTPUT
4
S2 0.01µF
6
8
7
2
3
4
INPUT
0V TO 5V
SAMPLE-HOLD COMMAND
HIGH = SAMPLE
LOW = HOLD
ACQUISITION TIME 20µs
HOLD SETTLING TIME 10µs
S-H OFFSET 1mV
HOLD SUPPLY CURRENT 250µA
SAMPLE SUPPLY CURRENT 5.0mA
1kHz SAMPLE RATE CURRENT 800µA
360k 360k
1/4 CD4066
1/2 CD4066
1/2 CD4066
1/4 CD4066
LT1006 • TA01
+
A1
LT1006 +
A2
LT1006
Distribution of Input Offset Voltage
INPUT OFFSET VOLTAGE (µV)
UNITS (%)
12
10
16
14
20
18
LT1006 • G01
8
6
4
2
0–80 –40 40 80
0
V
S
= 5V, 0V
T
A
= 25°C
350 LT1006s TESTED
FROM TWO RUNS
J AND N PACKAGES
Single Supply Operation
Input Voltage Range Extends to Ground
Output Swings to Ground while Sinking Current
Guaranteed
Offset Voltage: 50µV Max
Guaranteed
Low Drift: 1.3µV/°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: 520µA Max
Supply Current can be Reduced by a Factor of 4
Low Voltage Noise, 0.1Hz to 10Hz: 0.55µV
P-P
Low Current Noise—
Better than OP-07: 0.07pA/Hz at 10Hz
High Input Impedance: 250M Min
Minimum Supply Voltage: 2.7V Min
flflflfl UUUU Vos A” L7LJUEAR
2
LT1006
1006fa
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
(Note 1)
Operating Temperature Range
LT1006AM/LT1006M (OBSOLETE)....– 55°C to 125°C
LT1006AC/LT1006C/LT1006S8 ............... 0°C to 70°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER
PART NUMBER
LT1006AMH
LT1006MH
LT1006ACH
LT1006CH
ORDER
PART NUMBER
LT1006CN8
LT1006S8
1
2
3
4
8
7
6
5
TOP VIEW
V
+
OUT
–IN
+IN
V
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
+
V
OS
TRIM
I
SY
SET
(NOTE 3)
V
OS
TRIM
(NOTE 4)
S8 PART MARKING
1006
T
JMAX
= 100°C, θ
JA
= 130°C/W (N8)
T
JMAX
= 150°C, θ
JA
= 200°C/W (S8)
J8 PACKAGE 8-LEAD CERDIP
T
JMAX
= 100°C, θ
JA
= 130°C/W
OBSOLETE PACKAGES
Consider the N8 or S8 Package for Alternate Source
LT1006AMJ8
LT1006MJ8
LT1006ACJ8
LT1006CJ8
Consult LTC Marketing for parts specified with wider operating temperature ranges.
TOP VIEW
V+
ISY SET
(NOTE 3)
VOS
TRIM
–IN OUT
VOS
TRIM
(NOTE 4)
+IN
V
(CASE)
8
7
6
5
3
2
1
4
H PACKAGE
8-LEAD TO-5 METAL CAN
TJMAX = 150°C, θJA = 150°C, θJC = 45°C
+
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
LT1006AM/AC LT1006M/C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage 20 50 30 80 µV
LT1006S8 80 400 µV
V
OS
Long-Term Input Offset 0.4 0.5 µV/Mo
Time Voltage Stability LT1006S8 0.7 µV/Mo
I
OS
Input Offset Current 0.12 0.5 0.15 0.9 nA
I
B
Input Bias Current 9 15 10 25 nA
e
n
Input Noise Voltage 0.1Hz to 10Hz 0.55 0.55 µV
P-P
Input Noise Voltage Density f
O
= 10Hz 23 32 23 32 nV/Hz
f
O
= 1000Hz 22 25 22 25 nV/Hz
i
n
Input Noise Current Density f
O
= 10Hz 0.07 0.08 pA/Hz
Input Resistance (Note 2)
Differential Mode 180 400 100 300 M
Common Mode 5 4 G
VS = 5V, VCM = 0V, VOUT = 1.4V, TA = 25°C, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
L7LJCUMEAB
3
LT1006
1006fa
LT1006AM/AC LT1006M/C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Input Voltage Range 3.5 3.8 3.5 3.8 V
0–0.3 0 –0.3 V
CMRR Common Mode Rejection Ratio V
CM
= 0V to 3.5V 100 114 97 112 dB
PSRR Power Supply Rejection Ratio V
S
= ±2V to ±18V, V
O
= 0V 106 126 103 124 dB
A
VOL
Large-Signal Voltage Gain V
O
= 0.03V to 4V, R
L
= 10k 1.0 2.5 0.7 2.0 V/µV
V
O
= 0.03V to 3.5V, R
L
= 2k 0.5 2.0 0.3 1.8 V/µV
Maximum Output Voltage Swing Output Low, No Load 15 25 15 25 mV
Output Low, 600 to GND 5 10 5 10 mV
Output Low, I
SINK
= 1mA 220 350 220 350 mV
Output High, No Load 4.0 4.4 4.0 4.4 V
Output High, 600 to GND 3.4 4.0 3.4 4.0 V
SR Slew Rate 0.25 0.4 0.25 0.4 V/µs
I
S
Supply Current R
SET
= 340 520 350 570 µA
R
SET
= 180k Pin 8 to Pin 7 (Note 3) 90 90 µA
Minimum Supply Voltage 2.7 2.7 V
VS = 5V, VCM = 0V, VOUT = 1.4V, TA = 25°C, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
The denotes the specifications which apply over the full operating temperature range. VS = 5V, 0V; VCM = 0.1V; VO = 1.4V;
–55°C TA 125°C, unless otherwise noted.
LT1006AM LT1006M
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage 40 180 60 250 µV
V
OS
Input Offset Voltage Drift 0.2 1.3 0.3 1.8 µV/°C
Temp
I
OS
Input Offset Current 0.4 2.0 0.5 4.0 nA
I
B
Input Bias Current 13 25 16 40 nA
A
VOL
Large-Signal Voltage Gain V
O
= 0.05V to 3.5V, R
L
= 2k 0.25 0.8 0.15 0.7 V/µV
CMRR Common Mode Rejection Ratio V
CM
= 0.1V to 3.2V 90 103 87 102 dB
PSRR Power Supply Rejection Ratio V
S
= ±2V to ±18V, V
O
= 0V 100 117 97 116 dB
Maximum Output Voltage Swing Output Low, 600 to GND 615 618mV
Output High, 600 to GND 3.2 3.8 3.1 3.8 V
I
S
Supply Current 380 630 400 680 µA
L7LJUEAR
4
LT1006
1006fa
The denotes the specifications which apply over the full operating
temperature range. VS = 5V, 0V; VCM = 0V; VO = 1.4V; 0°C TA 70°C, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
LT1006AM/AC LT1006M/C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage 30 100 50 180 µV
LT1006S8 100 525 µV
I
OS
Input Offset Current 0.1 0.5 0.15 0.9 nA
I
B
Input Bias Current 7.5 12.0 8 20 nA
Input Voltage Range 13.5 13.8 13.5 13.8 V
–15.0 –15.3 –15.0 –15.3 V
CMRR Common Mode Rejection Ratio V
CM
= +13.5V, –15V 100 117 97 116 dB
PSRR Power Supply Rejection Ratio V
S
= ±2V to ±18V, V
O
= 0V 106 126 103 124 dB
A
VOL
Large Signal Voltage Gain V
O
= ±10V, R
L
= 2k 1.5 5.0 1.2 4.0 V/µV
V
O
= ±10V, R
L
= 6000.8 1.5 0.5 1.0 V/µV
V
OUT
Maximum Output Voltage Swing R
L
= 2k ±13 ±14 ±12.5 ±14 V
SR Slew Rate R
SET
= 0.25 0.4 0.25 0.4 V/µs
R
SET
= 390 Pin 8 to Pin 4 1.0 1.2 1.0 1.2 V/µs
I
S
Supply Current 360 540 360 600 µA
VS = ±15V, TA = 25°C, unless otherwise noted.
LT1006AC LT1006C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage J8/H Package 30 110 45 160 µV
N8 Package 50 190 µV
S8 Package 110 560 µV
V
OS
Input Offset Voltage Drift J8/H Package 0.2 1.3 0.3 1.8 µV/°C
Temp N8 Package 0.5 2.5 µV/°C
S8 Package 0.7 3.5 µV/°C
I
OS
Input Offset Current 0.25 1.2 0.3 2.5 nA
I
B
Input Bias Current 11 20 12 30 nA
A
VOL
Large-Signal Voltage Gain V
O
= 0.04V to 3.5V, R
L
= 2k 0.35 1.3 0.25 1.2 V/µV
CMRR Common Mode Rejection Ratio V
CM
= 0V to 3.4V 96 109 92 108 dB
PSRR Power Supply Rejection Ratio V
S
= ±2V to ±18V, V
O
= 0V 101 120 97 118 dB
Maximum Output Voltage Swing Output Low, 600 to GND 613 613mV
Output High, 600 to GND 3.3 3.9 3.2 3.9 V
I
S
Supply Current 350 570 360 620 µA
OS L7LJCUMEAB
5
LT1006
1006fa
The denotes the specifications which apply over the full operating
temperature range. VS = ±15V, –55°C TA 125°C, unless otherwise noted.
The denotes the specifications which apply over the full operating temperature range. VS = ±15V, 0°C TA 70°C, unless otherwise
noted.
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 R
SET
= 180k) do not include
current in R
SET
.
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 ±150µV.
ELECTRICAL CHARACTERISTICS
LT1006AM LT1006M
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage 80 320 110 460 µV
V
OS
Input Offset Voltage Drift 0.5 2.2 0.6 2.8 µV/°C
Temp
I
OS
Input Offset Current 0.2 2.0 0.3 3.0 nA
I
B
Input Bias Current 918 1127nA
A
VOL
Large-Signal Voltage Gain V
O
= ±10V, R
L
= 2k 0.5 1.5 0.25 1.0 V/µV
CMRR Common Mode Rejection Ratio V
CM
= +13V, –14.9V 97 114 94 113 dB
PSRR Power Supply Rejection Ratio V
S
= ±2V to ±18V, V
O
= 0V 100 117 97 116 dB
Maximum Output Voltage Swing R
L
= 2k ±12 ±13.8 ±11.5 ±13.8 V
I
S
Supply Current 400 650 400 750 µA
LT1006AC LT1006C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage J8/H Package 50 200 75 300 µV
N8 Package 80 330 µV
S8 Package 150 730 µV
V
OS
Input Offset Voltage Drift J8/H Package 0.5 2.2 0.6 2.8 µV/°C
Temp N8 Package 0.7 3.5 µV/°C
S8 Package 1.0 4.5 µV/°C
I
OS
Input Offset Current 0.15 1 0.25 2 nA
I
B
Input Bias Current 815 1023nA
A
VOL
Large-Signal Voltage Gain V
O
= ±10V, R
L
= 2k 13 0.7 2.5 V/µV
CMRR Common Mode Rejection Ratio V
CM
= 13V, –15V 98 116 94 114 dB
PSRR Power Supply Rejection Ratio V
S
= ±2V to ±18V, V
O
= 0V 101 120 97 118 dB
Maximum Output Voltage Swing R
L
= 2k ±12.5 ±13.9 ±11.5 ±13.8 V
I
S
Supply Current 370 600 380 660 µA
L7LJUEAR
6
LT1006
1006fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
VOS vs Common Mode Voltage
vs Temperature
Offset Voltage vs Balanced Source
Resistor
Voltage Gain vs Load Resistance
with VS = ±15V
Voltage Gain vs Load Resistance,
VS = 5V, 0V
Input Bias Current
vs Common Mode Voltage
Input Offset Current
vs Temperature
COMMON MODE INPUT VOLTAGE (V)
–0.4
OFFSET VOLTAGE (µV)
500
400
300
200
100
0
–100
–200
–300
1.0
LT1006 • G04
0 0.4 0.8 1.4
VS = 5V, 0V
T = 125°C
T = 125°C
T = 25°CT = 25°C
1
1
2
2
1POSITIVE VOS
NEGATIVE VOS
2
BALANCED SOURCE RESISTANCE, RS ()
1k
INPUT OFFSET VOLTAGE (µV)
0.1
1.0
10
30k 100k3k 10k 300k 1M 3M 10M
LT1006 • G03
0.01
+
RS
RS
VS = 5V, 0V, –55°C TO 125°C
VS = ±15V,
–55°C TO 125°C
VS = ±15V, 25°C
VS = 5V, 0V, 25°C
LOAD RESISTANCE TO GROUND ()
100
100k
VOLTAGE GAIN (V/V)
1M
10M
1k 10k
LT1006 • G06
T
A
= –55°C
T
A
= 25°C
T
A
= 125°C
LOAD RESISTANCE TO GROUND ()
100
100k
VOLTAGE GAIN (V/V)
1M
10M
1k 10k
LT1006 • G07
TA = 25°C
TA = –55°C
TA = 125°C
TEMPERATURE (°C)
–50
0
INPUT OFFSET CURRENT (nA)
0.2
0.5
050 75
LT1006 • G09
0.1
0.4
0.3
–25 25 100 125
V
CM
= 0V
V
S
= 5V, 0V
V
S
= ±15V
INPUT BIAS CURRENT (nA)
0
–1
COMMON MODE INPUT VOLTAGE, V
S
= 5V, 0V (V)
COMMON MODE INPUT VOLTAGE, V
S
= 15V (V)
0
1
2
3
–6 –12 –18 –24
LT1006 • G10
4
5
–15
–10
–5
0
5
10
15
V
S
= 5V, 0V, T = 25°C
V
S
= ±15V,
T = 25°C
V
S
= 5V, 0V, T = 125°C
Offset Voltage Drift with Temperature
of Representative Units
TEMPERATURE (°C)
–50
–150
OFFSET VOLTAGE (µV)
–120
–60
–30
0
150
60
050 75
LT1006 • G02
–90
90
120
30
–25 25 100 125
VS = 5V, 0V
VCM = 0.1V
Warm-Up Drift
Input Bias Current vs Temperature
TIME AFTER POWER ON (MIN)
0
CHANGE IN OFFSET VOLTAGE (µV)
1.0
1.5
4
LT1006 • G05
0.5
0123
2.0 V
S
= 5V, 0V
T
A
= 25°C
LT1006 METAL CAN (H) PACKAGE
LT1006 CERDIP (J) PACKAGE
TEMPERATURE (˚C)
–50
INPUT BIAS CURRENT (nA)
12
15
18
25 75
LT1006 • G08
9
6
–25 0 50 100 125
3
0
V
CM
= 0V
V
S
= 5V, 0V
V
S
= ±15V
ISWK = mm '5er = 5‘“ '5er = ‘W‘ ISW mm 'sz , mm '5er L7LII‘IEN2 womm
7
LT1006
1006fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
10Hz Voltage Noise Distribution 0.1Hz to 10Hz NoiseNoise Spectrum
VOLTAGE NOISE DENSITY (nV/Hz)
16
0
NUMBER OF UNITS
40
100
20 24
LT1006 • G11
20
80
60
28 32
VS = ±2.5V
TA = 25°C
200 UNITS TESTED
FROM THREE RUNS
FREQUENCY (Hz)
1
10
VOLTAGE NOISE DENSITY (nV/Hz)
CURRENT NOISE DENSITY (fA/Hz)
100
30
300
1000
10 100 1k
LT1006 • G12
TA = 25°C
VS = ±2V TO ±18V
CURRENT NOISE
VOLTAGE NOISE
1/f CORNER 2Hz
0
NOISE VOLTAGE (100nV/DIV)
246
TIME (SEC)
810
LT1006 • G13
V
S
= ±2V TO ±15V
T
A
= 25°C
Supply Current vs Temperature Increasing Slew Rate (RSET to V)Reducing Power Dissipation
TEMPERATURE (°C)
–50
250
SUPPLY CURRENT (µA)
350
500
050 75
LT1006 • G14
300
450
400
–25 25 100 125
V
S
= ±15V
V
S
= 5V, 0V
CURRENT INJECTED INTO PIN 8 (µA)
*ISY DOES NOT INCLUDE CURRENT THROUGH RSET
50
10
SUPPLY CURRENT (µA)
SLEW RATE (V/µs)
100
1000
5 0.510 1
LT1006 • G15
VS = 5V, 0V
SR
ISY*
PIN 8 IS APPROXIMATELY
60mV ABOVE THE NEGATIVE SUPPLY 0.01
0.1
1
LT1006 • G16
SLEW RATE (V/µs)
SUPPLY CURRENT (mA)
RSET, PIN 8 TO PIN 4 ()
100
0.1
1
10
0.1
1
10
1k 10k
VS = ±15V
OR VS = 5V, 0V
ISY
SR
PIN 8 IS APPROXIMATELY
60mV ABOVE THE NEGATIVE SUPPLY
Output Saturation vs Sink Current
vs Temperature
Common Mode Rejection Ratio
vs Frequency
Maximum Output Swing
vs Load Resistor
TEMPERATURE (°C)
–50 –25
SATURATION VOLTAGE (V)
0.1
1.0
10
0255075100 125
LT1006 • G17
0.01
V
+
= 5V TO 30V
V
= 0V
I
SINK
= 10mA
I
SINK
= 5mA
I
SINK
= 1mA
I
SINK
= 100µA
I
SINK
= 10µA
I
SINK
= 0
LOAD RESISTOR (k)
0.01
2
MAXIMUM OUTPUT VOLTAGE (V)
3
4
0.1 1 10
LT1006 • G18
1
0
5V
S
= 5V, 0V
T
A
= 25°C
T
A
= 55°C
T
A
= 125°C
FREQUENCY (Hz)
10
0
COMMON MODE REJECTION RATIO (dB)
20
40
60
80
100
120
100 1k 10k 100k
LT1006 • G19
1M
T
A
= 25°C
V
S
= 5V, 0V V
S
= ±15V
L7Hfl§é§g
8
LT1006
1006fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Large Transient Response,
VS = 5V, 0V
Large-Signal Transient Response,
VS = ±15V
Large-Signal Transient Response,
VS = 5V, 0V
FREQUENCY (Hz)
0.01
VOLTAGE GAIN (dB)
60
80
100
1M
LT1006 • G20
40
20
–20 10.1 10 1k 100k 10M
100 10k
0
140
120
T
A
= 25°C
C
L
= 10pF
V
S
= 5V, 0V V
S
= ±15V
FREQUENCY (MHz)
0.1
VOLTAGE GAIN (dB)
PHASE SHIFT (DEGREES)
20
110
LT1006 • G21
–10
0
10
200
0.3 3
160
80
100
120
180
140
T
A
= 25°C
V
CM
= 0V
C
L
= 10pF
PHASE
±15V
±15V
GAIN
5V, 0V 5V, 0V
FREQUENCY (Hz)
0.1
POWER SUPPLY REJECTION RATIO (dB)
80
100
120
100 10k
LT1006 • G22
60
40
110 1k 100k 1M
20
0
NEGATIVE
SUPPLY
POSITIVE
SUPPLY
V
S
= ±15V + 1Vp-p SINE WAVE
T
A
= 25°C
4V
2V
0V
10µs/DIV 1006 G23
A
V
= 1
R
L
= 4.7k TO 5V
INPUT = 0V TO 3.8V
4V
2V
0V
10µs/DIV 1006 G24
A
V
= 1
R
L
= 4.7k TO GROUND
INPUT = 0V TO 3.8V
5V/DIV
50µs/DIV 1006 G25
A
V
= 1
Voltage Gain vs Frequency
Power Supply Rejection Ratio
vs FrequencyGain, Phase vs Frequency
Small-Signal Transient Response,
VCC = ±2.5V to ±15V
Small-Signal Transient Response,
VS = 5V, 0V
100mV
0V
20µs/DIV 1006 G26
A
V
= 1
C
L
= 10pF
R
L
= 600 TO GND
INPUT = 0V TO 100mV PULSE
20mV/DIV
2µs/DIV 1006 G27
A
V
= 1
C
L
= 10pF
-I|—w L7U£JMEI§B
9
LT1006
1006fa
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, how-
ever, 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
termi-
nal) 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 25°C), the input stage saturates (transistors Q3 and
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.
Voltage Follower with Input Exceeding the Negative Common Mode Range (VS = 5V, 0V)
Voltage FollowerGain 100 Amplifier
+
99R
600
100mV
5V
LT1006
R
1mV
LT1006 • TA02
+
600
OUTPUT
SATURATED
5mV
5V
LT1006
1mV
LT1006 • TA03
2V
6V
P-P
INPUT, –1.5V TO 4.5V 1006 TA11a
4V
0V
2V
LM324, LM358, OP-20, OP-21 1006 TA11b
EXHIBIT OUTPUT PHASE
REVERSAL
4V
0V
2V
LT1006 1006 TA11c
NO PHASE REVERSAL
4V
0V
APPLICATIO S I FOR ATIO
WUUU
10
LT1006
1006fa
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 (–250µV over the – 55°C to 125°C range). The
effective common mode input is 0.3V with respect to the
negative supply. As indicated by the common mode rejec-
tion specifications the difference is only a few microvolts
between the two methods of offset voltage measurement.
Low Supply Operation
The minimum guaranteed supply voltage for proper
operation of the LT1006 is 2.7V. Typical supply current at
this voltage is 320µA; therefore, power dissipation is only
860µW.
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
(R
SET
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 R
SET
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 Rise Response Time
to 10mV, 5mV, 2mV Overdrives
Comparator Fall Response Time
to 10mV, 5mV, 2mV Overdrives
Test Circuit for Offset Voltage and
Offset Drift with Temperature
+
V0
4.7V
0.3V
LT1006
50k*
*
**
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
100
50k*
0
V
S
= 5V, 0V 50µs/DIV 1006 TA12a
0
2
4
OUTPUT (V)
INPUT (mV)
100
0
V
S
= 5V, 0V 50µs/DIV 1006 TA12b
0
2
4
OUTPUT (V)
INPUT (mV) 100
0
APPLICATIO S I FOR ATIO
WUUU
L7LJCUMEAB
11
LT1006
1006fa
+
0.02V TO 4V OUT =
2°C TO 400°C
±0.25°C
+V
+V
78
4
10k*
39k
1.21k*
1N457
I
K
= 100µA
50k
5°C
TRIM
LM334
V = 5.6V TO 10V
LT1006
12k*
1k**
LT1006 • TA05
1.21M*
43.2k**
1µF
5k
400°C
TRIM
1k**
1µF
R
P
= ROSEMOUNT 118MF
** = TRW MAR-6 0.1%
* = 1% METAL FILM
R
P
1k @
0°C
1k**
180k
5V
7
3
2
6
LT1006 • TA06
+
4
100
IOUT = VIN
100
OPERATES FROM A SINGLE 5V SUPPLY
LT1006
0.68µF
5V
1µF
0.001µF
1/2 LTC1043
1k
INPUT
0V TO 2V
4
8 7
14 13
17 16
1µF
11
12
LT1006 • TA07
Q5
Q6
9V
9V
NC
TRIGGER
VOLTAGE
CONTROLLED
CURRENT
SOURCE
2k
8
4
7
0.33µF0.01µF
10µF
2µF
3pF 1N4148
Q1
Q3
Q2
2k*
REFERENCE
LT1004-2.5
LT1004-1.2
OUTPUT
0MHz TO 1MHz
LM334
Q4
470k 12k
Q8
2N3906
3.1k*
+
47k
200k*
120k**
TYP
INPUT
0V TO 5V 20k
1MHz
TRIM
100Hz
TRIM
220k** TYP
A1
LT1006
*= 1% METAL FILM
= 2N3904
** = 1% METAL FILM, SELECTED
= 74C14
1000pF
(POLYSTYRENE)
CHARGE PUMP
STRAY
CAPACI-
TANCE
REFERENCE
SWITCH
0.12% LINEARITY
280µA QUIESCENT CURRENT
680µA AT 1MHz
Q7
112 11 11
÷100
74C90
1414
112
74C90
14
+
Platinum RTD Signal Conditioner
with Curvature Correction
Voltage Controlled Current Source
with Ground Referred Input and Output
Micropower 1MHz V/F Converter
TYPICAL APPLICATIO S
U
L7LJUEAR
12
LT1006
1006fa
4.5V
(3AA CELLS)
100k
CATALYST
RESEARCH CORP
MODEL 2736
2.8V
TYPE J THERMOCOUPLE
7
8
+
4
LT1006
0V TO 3V OUT =
0°C TO 60°C
±0.75°C
TOTAL POWER CONSUMPTION 500µW
* = TRW MAR-6 0.1%
RT = YELLOW SPRINGS INST. CO
MODEL 44007 5k AT 25°C
56k
5.76M*
5.98k*
R3
RT
1.8k*
R1
1684*
LT1034
1.2V
R2
186*
R4
233k*
LT1006 • TA08
LT1006 • TA09
5V
7
3
2
6
4
1µF
1/2 LTC1043
0V TO 1.000V =
0°C TO 100.0°C ±0.25°C
T1 = YELLOW SPRINGS #44201
ALL RESISTORS = TRW MAR-6 0.1% UNLESS NOTED
1µF
11
12
4
1716
13
7 8
14
+
LT1006
0.001µF
51.1k
500
100°C
100k
10k
5%
LT1004
1.235V
16.2k
1k
0°C
5V
3.2k
107k
6250
T1
Micropower Thermocouple Signal Conditioner with Cold Junction Compensation
Linear Thermometer
TYPICAL APPLICATIO S
U
—|:I § |+ |||||| .52wa . m a? LL» NH .flss H M mm IV E. 5.in éflwfll #31 it; 121E L: II II J». Nuts? ix W: «L i» INF . k. o E T i» fluf‘g 13L.» _.I._ W _.I._ L7LJCUMEAB
13
LT1006
1006fa
6
OUTPUT
7
V
+
3
+IN
400
2
–IN
4
V
9k 9k 1.6k
Q6 Q5 Q13
Q28
Q21
Q16 Q14
400
1.6k 1.6k 100
Q15 Q32
1k 600
Q12
Q27
Q1
Q22 Q2
Q7 Q8
Q3
3.9k 21pF
Q9
75pF
1
TRIM
5
8
TRIM
Q11
2.7k
2k
2.7k
2k 2k 1.3k
Q29
Q4
Q20
Q10
2.5pF
Q18
Q19
15pF
4pF
2k
Q23
Q31
2k 30
100pF
Q34
Q43
Q24
Q30
Q25
2.4k 18
28k
Q33
Q26
Q37
V
Q39 Q40 Q41
Q42
Q44
84k 2.5k5.4k
Q38
Q35
Q36
Q17
J1
LT1006 • SD01
1/2 LTC1043
LT1006 • TA10
5V
–5V
5V
8
3
2
1
4
+
V
OUT
CMRR > 120dB AT DC
CMRR > 120dB AT 60Hz
DUAL SUPPLY OR SINGLE 5V
GAIN = 1 + R2/R1
V
OS
150µV
COMMON MODE INPUT VOLTAGE INCLUDES THE SUPPLIES
C1
1µF
(EXTERNAL) 1µF
C2
1µF
11
12
4
16
17
13
7 8
14
+
LT1006
–5V
DIFFERENTIAL
INPUT
0.01µF
R2R1
V
OS
2µV/°C
T
±5V Precision Instrumentation Amplifier
TYPICAL APPLICATIO S
U
SCHE ATIC DIAGRA
W
W
U—EI'EI'EI' W L7L'F1EL‘P
14
LT1006
1006fa
J8 Package
8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
J8 0801
.014 – .026
(0.360 – 0.660)
.200
(5.080)
MAX
.015 – .060
(0.381 – 1.524)
.125
3.175
MIN
.100
(2.54)
BSC
.300 BSC
(7.62 BSC)
.008 – .018
(0.203 – 0.457) 0° – 15°
.005
(0.127)
MIN
.405
(10.287)
MAX
.220 – .310
(5.588 – 7.874)
1234
8765
.025
(0.635)
RAD TYP
.045 – .068
(1.143 – 1.650)
FULL LEAD
OPTION
.023 – .045
(0.584 – 1.143)
HALF LEAD
OPTION
CORNER LEADS OPTION
(4 PLCS)
.045 – .065
(1.143 – 1.651)
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE
OR TIN PLATE LEADS
OBSOLETE PACKAGES
.050
(1.270)
MAX
.016 – .021**
(0.406 – 0.533)
.010 – .045*
(0.254 – 1.143)
SEATING
PLANE
.040
(1.016)
MAX .165 – .185
(4.191 – 4.699)
GAUGE
PLANE
REFERENCE
PLANE
.500 – .750
(12.700 – 19.050)
.305 – .335
(7.747 – 8.509)
.335 – .370
(8.509 – 9.398)
DIA
.200
(5.080)
TYP
.027 – .045
(0.686 – 1.143)
.028 – .034
(0.711 – 0.864)
.110 – .160
(2.794 – 4.064)
INSULATING
STANDOFF
45°TYP
H8(TO-5) 0.200 PCD 0801
LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND THE SEATING PLANE
FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS .016 – .024
(0.406 – 0.610)
*
**
PIN 1
H Package
8-Lead TO-5 Metal Can (.200 Inch PCD)
(Reference LTC DWG # 05-08-1320)
U
PACKAGE DESCRIPTIO
7 D U U U U rfl f” P e» a j ¢ 7* " ,7 1 pig * * L7LJCUMEAB
15
LT1006
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 represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
N8 Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
N8 1002
.065
(1.651)
TYP
.045 – .065
(1.143 – 1.651)
.130 ± .005
(3.302 ± 0.127)
.020
(0.508)
MIN
.018 ± .003
(0.457 ± 0.076)
.120
(3.048)
MIN
12 34
87 65
.255 ± .015*
(6.477 ± 0.381)
.400*
(10.160)
MAX
.008 – .015
(0.203 – 0.381)
.300 – .325
(7.620 – 8.255)
.325 +.035
–.015
+0.889
0.381
8.255
()
NOTE:
1. DIMENSIONS ARE INCHES
MILLIMETERS
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
.100
(2.54)
BSC
U
PACKAGE DESCRIPTIO
HHHH ,7HHHH L7LJUEAR
16
LT1006
1006fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
FAX: (408) 434-0507
www.linear.com
LT/TP 1102 1K REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1988
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.016 – .050
(0.406 – 1.270)
.010 – .020
(0.254 – 0.508)× 45°
0°– 8° TYP
.008 – .010
(0.203 0.254)
SO8 0502
.053 – .069
(1.346 1.752)
.014 – .019
(0.355 – 0.483)
TYP
.004 – .010
(0.101 – 0.254)
.050
(1.270)
BSC
1
N
234
N/2
.150 – .157
(3.810 – 3.988)
NOTE 3
8765
.189 – .197
(4.801 – 5.004)
NOTE 3
.228 – .244
(5.791 – 6.197)
.245
MIN
N
123 N/2
.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)
U
PACKAGE DESCRIPTIO

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