The LT®1001 significantly advances the state-of-the- ... LT1001. 1001fb.
LT1001AM/883. LT1001AC. LT1001M/LT1001C. SYMBOL PARAMETER.
LT1001 Precision Operational Amplifier DESCRIPTIO
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FEATURES ■
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The LT ®1001 significantly advances the state-of-theart of precision operational amplifiers. In the design, processing, and testing of the device, particular attention has been paid to the optimization of the entire distribution of several key parameters. Consequently, the specifications of the lowest cost, commercial temperature device, the LT1001C, have been dramatically improved when compared to equivalent grades of competing precision amplifiers.
Guaranteed Low Offset Voltage LT1001AM 15µV max LT1001C 60µV max Guaranteed Low Drift LT1001AM 0.6µV/°C max LT1001C 1.0µV/°C max Guaranteed Low Bias Current LT1001AM 2nA max LT1001C 4nA max Guaranteed CMRR LT1001AM 114dB min LT1001C 110dB min Guaranteed PSRR LT1001AM 110dB min LT1001C 106dB min Low Power Dissipation LT1001AM 75mW max LT1001C 80mW max Low Noise 0.3µVP-P
Essentially, the input offset voltage of all units is less than 50µV (see distribution plot below). This allows the LT1001AM/883 to be specified at 15µV. Input bias and offset currents, common-mode and power supply rejection of the LT1001C offer guaranteed performance which were previously attainable only with expensive, selected grades of other devices. Power dissipation is nearly halved compared to the most popular precision op amps, without adversely affecting noise or speed performance. A beneficial by-product of lower dissipation is decreased warm-up drift. Output drive capability of the LT1001 is also enhanced with voltage gain guaranteed at 10mA of load current. For similar performance in a dual precision op amp, with guaranteed matching specifications, see the LT1002. Shown below is a platinum resistance thermometer application.
U APPLICATIO S ■ ■ ■
Thermocouple amplifiers Strain gauge amplifiers Low level signal processing High accuracy data acquisition
, LTC and LT are registered trademarks of Linear Technology Corporation.
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TYPICAL APPLICATIO
Typical Distribution of Offset Voltage VS = ±15V, TA = 25°C
Linearized Platinum Resistance Thermometer with ±0.025°C Accuracy Over 0 to 100°C 1MEG.** R plat. † 1k = 0°C
20k
330k*
10k*
2
–
1µf 2
6
LT1001 3
–
10k*
+
LT1001 3
LM129
200
GAIN TRIM
1.2k**
90k*
* ULTRONIX 105A WIREWOUND ** 1% FILM † PLATINUM RTD 118MF (ROSEMOUNT, INC.)
20k OFFSET TRIM
+
6
OUTPUT 200Ω
LINEARITY TRIM
0 TO 10V = 0 TO 100°C
NUMBER OF UNITS
+15
954 UNITS FROM THREE RUNS
150
100
50
10k*
‡ Trim sequence: trim offset (0°C = 1000.0Ω), trim linearity (35°C = 1138.7Ω), trim gain (100°C = 1392.6Ω). Repeat until all three points are fixed with ±0.025°C.
0 –60
–40 0 20 40 –20 INPUT OFFSET VOLTAGE (µV)
60 1001 TA02
1001 TA01
1001fb
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LT1001 W W
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ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply Voltage ...................................................... ±22V Differential Input Voltage ...................................... ±30V Input Voltage ........................................................ ±22V Output Short Circuit Duration ......................... Indefinite
Operating Temperature Range LT1001AM/LT1001M (OBSOLETE) .. – 55°C to 150°C LT1001AC/LT1001C .............................. 0°C to 125°C Storage: All Devices.......................... – 65°C to 150°C Lead Temperature (Soldering, 10 sec.)................. 300°C
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PACKAGE/ORDER INFORMATION ORDER PART NUMBER TOP VIEW OFFSET ADJUST 8 –
–IN 2
V+
7
1
6 OUT
+ 5
3 +IN
LT1001AMH/883 LT1001MH LT1001ACH LT1001CH
4
ORDER PART NUMBER
TOP VIEW VOS TRIM 1
VOS 8 TRIM
–IN 2
–
7 V+
+IN 3
+
6 OUT
V– 4
LT1001ACN8 LT1001CN8 LT1001CS8
5 NC
N8 PACKAGE 8 PIN PLASTIC DIP
S8 PACKAGE 8 PIN PLASTIC SO
S8 PART MARKING 1001
TJMAX = 150°C, θJA = 130°C/W (N) TJMAX = 150°C, θJA = 150°C/W (S)
NC
V– (CASE) H PACKAGE METAL CAN
ORDER PART NUMBER LT1001AMJ8/883 LT1001MJ8 LT1001ACJ8 LT1001CJ8
J8 PACKAGE 8 PIN HERMETIC DIP TJMAX = 150°C, θJA = 100°C/W (J)
TJMAX = 150°C, θJA = 150°C/W, θjc = 45°C/W
OBSOLETE PACKAGE
OBSOLETE PACKAGE
Consider the N8 and S8 Packages for Alternate Source
Consider the N8 and S8 Packages for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = ±15V, unless otherwise noted
SYMBOL PARAMETER
CONDITIONS LT1001AM/883 Note 2 LT1001AC
LT1001AM/883 LT1001AC MIN TYP MAX 7 15
LT1001M/LT1001C MIN TYP MAX
UNITS
18
60
µV
1.0
0.3
1.5
µV/month
2.0
0.4
3.8
nA
±0.5
±2.0
±0.7
±4.0
nA
0.3
0.6
0.3
0.6
µVp-p
10.3 9.6
18.0 11.0
10.5 9.8
18.0 11.0
nV√Hz nV√Hz
VOS
Input Offset Voltage
∆VOS ∆Time IOS
Long Term Input Offset Voltage Stability
Ib
Input Bias Current
en
Input Noise Voltage
0.1Hz to 10Hz (Note 3)
en
Input Noise Voltage Density
fO = 10Hz (Note 6) fO = 1000Hz (Note 3)
AVOL
Large Signal Voltage Gain
RL ≥ 2kΩ, VO = ±12V RL ≥ 1kΩ VO = ±10V
CMRR
Common Mode Rejection Ratio
VCM = ±13V
114
126
110
126
dB
PSRR
Power Supply Rejection Ratio
VS = ±3V to ±18V
110
123
106
123
dB
Rin
Input Resistance Differential Mode
30
100
15
80
Notes 3 and 4
Input Offset Current
450 300
10
25
0.2 0.3
800 500
400 250
800 500
V/mV V/mV
MΩ 1001fb
2
LT1001
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = ±15V, TA = 25°C, unless otherwise noted
SYMBOL PARAMETER Input Voltage Range
CONDITIONS
LT1001AM/883 LT1001AC MIN TYP MAX ±13 ±14
VOUT
Maximum Output Voltage Swing
RL ≥ 2kΩ RL ≥ 1kΩ
±13 ±12
SR
Slew Rate
RL ≥ 2kΩ (Note 5)
0.1
0.25
GBW
Gain-Bandwidth Product
(Note 5)
0.4
0.8
Pd
Power Dissipation
No load No load, VS = ±3V
±14 ±13.5
46 4
LT1001M/LT1001C MIN TYP MAX ±13 ±14 ±13 ±12 0.1 0.4
75 6
UNITS V
±14 ±13.5
V V
0.25
V/µs
0.8 48 4
MHz 80 8
mW mW
LT1001M TYP MAX 45 160
UNITS µV
VS = ±15V, – 55°C ≤ TA ≤ 125°C, unless otherwise noted SYMBOL PARAMETER VOS Input Offset Voltage
●
LT1001AM/883 MIN TYP MAX 30 60 0.2
CONDITIONS
MIN
µV/°C
∆VOS ∆Temp IOS
Average Offset Voltage Drift
●
Input Offset Current
●
0.8
4.0
1.2
7.6
nA
IB
Input Bias Current
●
±1.0
±4.0
±1.5
±8.0
nA
AVOL
Large Signal Voltage Gain
RL ≥ 2kΩ, VO = ±10V
●
300
700
200
700
V/mV
CMRR
Common Mode Rejection Ratio
VCM = ±13V
●
110
122
106
120
dB
PSRR
Power Supply Rejection Ratio
VS = ±3 to ±18V
●
104
117
100
117
dB
●
±13
VOUT
Output Voltage Swing
RL ≥ 2kΩ
●
±12.5 ±13.5
Pd
Power Dissipation
No load
●
Input Voltage Range
0.6
±14 55
0.3
1.0
±13
±14
V
±12.0
±13.5
V
90
60
100
mW
LT1001C TYP MAX 30 110
UNITS µV
VS = ±15V, 0°C ≤ TA ≤ 70°C, unless otherwise noted SYMBOL PARAMETER VOS Input Offset Voltage
CONDITIONS
MIN ●
LT1001AC TYP MAX 20 60
MIN
∆VOS ∆Temp IOS
Average Offset Voltage Drift
●
Input Offset Current
●
0.5
3.5
0.6
5.3
nA
IB
Input Bias Current
●
±0.7
±3.5
±1.0
±5.5
nA
AVOL
Large Signal Voltage Gain
RL ≥ 2kΩ, VO = ±10V
●
350
750
250
750
V/mV
CMRR
Common Mode Rejection Ratio
VCM = ±13V
●
110
124
106
123
dB
Power Supply Rejection Ratio
VS = ±3V to ±18V
●
120
dB
PSRR
Input Voltage Range
106 ±13
±12.5 ±13.8
Output Voltage Swing
RL ≥ 2kΩ
●
Pd
Power Dissipation
No load
●
0.6
120
●
VOUT
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Offset voltage for the LT1001AM/883 and LT1001AC are measured after power is applied and the device is fully warmed up. All other grades are measured with high speed test equipment, approximately 1 second after power is applied. The LT1001AM/883 receives 168 hr. burn-in at 125°C. or equivalent. Note 3: This parameter is tested on a sample basis only.
0.2
103
±14 50
0.3
85
±13
±14
±12.5
±13.8 55
1.0
µV/°C
V V 90
mW
Note 4: Long Term Input Offset Voltage Stability refers to the averaged trend line of VOS versus Time over extended periods after the first 30 days of operation. Excluding the initial hour of operation, changes in VOS during the first 30 days are typically 2.5µV. Note 5: Parameter is guaranteed by design. Note 6: 10Hz noise voltage density is sample tested on every lot. Devices 100% tested at 10Hz are available on request. 1001fb
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LT1001 U W
TYPICAL PERFORMANCE CHARACTERISTICS Typical Distribution of Offset Voltage Drift with Temperature
Offset Voltage Drift withTemperature of Representative Units
OFFSET VOLTAGE (µV)
60
40
LT1001
VS = ±15V
30 20
CHANGE IN OFFSET VOLTAGE (µV)
40
265 UNITS TESTED
80
NUMBER OF UNITS
Warm-Up Drift
50
100
LT1001A
10 0
LT1001A
–10 –20
20
LT1001
–30
VS = ±15V TA = 25°C
4
3 METAL CAN (H) PACKAGE 2 DUAL-IN-LINE PACKAGE PLASTIC (N) OR CERDIP (J)
1
–40 –50 –50
–0.6 –0.2 0 +0.2 +0.6 +1.0 OFFSET VOLTAGE DRIFT (µV/°C)
–25
50 0 75 25 TEMPERATURE (°C)
1001 G01
0
125
100
0.1Hz to 10Hz Noise
Long Term Stability of Four Representative Units
100
10
10
VOLTAGE NOISE nV/√Hz
3
1/f CORNER 4Hz VOLTAGE
10
1.0
1/f CORNER 70Hz
3
0.3
CURRENT NOISE pA/√Hz
TA = 25°C VS = ±3 TO ±18V 30
5
1001 G03
Noise Spectrum
NOISE VOLTAGE 100nV/DIV
1 3 4 2 TIME AFTER POWER ON (MINUTES)
1001 G02
OFFSET VOLTAGE CHANGE (µV)
–1.0
5
0
–5
CURRENT 2
6 4 TIME (SECONDS)
8
10
1 1
0.1 1000
10 100 FREQUENCY (Hz)
Input Bias and Offset Current vs Temperature
0.6 BIAS CURRENT 0.4
–50 –25
0.5 0
125
1001 G07
DEVICE WITH POSITIVE INPUT CURRENT VS = ±15V TA = 25°C
–.5 DEVICE WITH NEGATIVE INPUT CURRENT –1.0
100
Ib
– +
VCM
OFFSET CURRENT 50 25 75 0 TEMPERATURE (°C)
4
–1.5 –15
5
30
1.0 INPUT BIAS CURRENT (nA)
INPUT BIAS AND OFFSET CURRENTS (nA)
1.2
0.8
3 2 TIME (MONTHS)
Input Bias Current vs Differential Input Voltage
1.5
1.4
VS = ±15V
1
1001 G06
Input Bias Current Over the Common Mode Range
1.0
0
1001 G05
1001 G04
0.2
–10
INVERTING OR NON-INVERTING INPUT BIAS CURRENT (mA)
0
20
10
IB ≈ 1 nA to VDIFF = 0.7V
COMMON MODE INPUT RESISTANCE = 28V = 280GΩ 0.1nA 10 –5 0 5 –10 COMMON MODE INPUT VOLTAGE
VS = ±15V TA = 25°C
15
1001 G08
0 0.1
0.3 1.0 3.0 10 ± DIFFERENTIAL INPUT (V)
30 1001 G09
1001fb
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LT1001 U W
TYPICAL PERFORMANCE CHARACTERISTICS Open Loop Voltage Gain Frequency Response
Gain, Phase Shift vs Frequency
VS = ±15V, VO = ±12V
800k
VS = ±3V, VO = ±1V
600k 400k 200k
120
16
TA = 25°C 100 80
VOLTAGE GAIN (dB)
1000k
OPEN LOOP VOLTAGE GAIN (dB)
OPEN LOOP VOLTAGE GAIN (V/V)
140
1200k
VS = ±15V
60 40
VS = ±3V
20
50 25 75 0 TEMPERATURE (°C)
100
–20 0.1
125
1
10
100 1k 10k 100k 1M 10M FREQUENCY (Hz)
V + = 12 to 18V
V – = –12 to –18V V – = –1.2 to –4V
50 25 75 TEMPERATURE °C
100
80
VS = ±15V TA = 25°C
60 40
1
10
100k
100 1k 10k FREQUENCY (Hz)
–8 0.1
0.5
POSITIVE SWING
VS = ±15V TA = 25°C
1001 G16
NEGATIVE SUPPLY
80 POSITIVE SUPPLY
60 40 20
1
10 100 1k FREQUENCY (Hz)
10k
100k
1001 G15
Output Short-Circuit Current vs Time SHORT CIRCUIT CURRENT (mA) SOURCING SINKING
8
4
± 6 ± 9 ± 12 ± 15 ± 18 ± 21 SUPPLY VOLTAGE (V)
100
50
12 OUTPUT SWING (V)
SUPPLY CURRENT (mA)
1.0
VS = ±15V ±1V p-p TA = 25°C
120
0 0.1
1M
NEGATIVE SWING
2.0
125°C
220 2
1 0.5 FREQUENCY (MHz)
1001 G12
16
±3
0.2
Output Swing vs Load Resistance
Supply Current vs Supply Voltage
1.5
200
PHASE MARGIN –55°C = 63° 125°C = 57°
1001 G14
1001 G13
25°C
180
VS = ±15V
140
100
125
–55°C
160
Power Supply Rejection Ratio vs Frequency
120
20 0
GAIN 125°C
140
GAIN 25°C & –55°C
0
POWER SUPPLY REJECTION (dB)
COMMON MODE REJECTION (dB)
COMMON MODE LIMIT (V) REFERRED TO POWER SUPPLY
4
140 V + = 1.2 to 4V
25°C PHASE MARGIN = 60°
8
Common Mode Rejection Ratio vs Frequency
Common Mode Limit vs Temperature
+1.0 +0.8 +0.6 +0.4 +0.2 V– –50 –25
120
1001 G11
1001 G10
V+ –0.2 –0.4 –0.6 –0.8 –1.0
100
PHASE 25°C
12
–4
0
0 –50 –25
80
20
PHASE SHIFT (DEG)
Open Loop Voltage Gain vs Temperature
0 100
300 1000 3k LOAD RESISTANCE (Ω)
10k 1001 G17
40
–55°C
30 20
25°C 125°C
10
VS = ±15V
–10
125°C
–20
25°C
–30
–55°C
–40 –50 0
1 3 4 2 TIME FROM OPUTPUT SHORT (MINUTES) 1001 G18
1001fb
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LT1001 U W
TYPICAL PERFORMANCE CHARACTERISTICS Voltage Follower Overshoot vs Capacitive Load
Small Signal Transient Response 100
VS = ±15V TA = 25°C VIN = 100mV RL > 50k
80
PERCENT OVERSHOOT
Small Signal Transient Response
60
40
20
0 100
AV = +1, CL = 50pF
10,000 1000 CAPACITIVE LOAD (pF)
100,000
AV = +1, CL = 1000pF
1001 G19
1001 G21
1001 G20
Maximum Undistorted Output vs. Frequency
Large Signal Transient Response
Closed Loop Output Impedance 100
VS = ±15V TA = 25°C
24
OUTPUT IMPEDANCE (Ω)
OUTPUT VOLTAGE, PEAK-TO-PEAK (V)
28
20 16 12 8
10 AV = 1000 1 AV = +1 0.1 IO = ±1mA VS = ±15V TA = 25°C
0.01
4 0
0.001
10 100 FREQUENCY (kHz)
1
1
1000
1001 G22
10
1k 100 FREQUENCY (Hz)
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Application Notes and Test Circuits The LT1001 series units may be inserted directly into OP-07, OP-05, 725, 108A or 101A sockets with or without removal of external frequency compensation or nulling components. The LT1001 can also be used in 741, LF156 or OP-15 applications provided that the nulling circuitry is removed. The LT1001 is specified over a wide range of power supply voltages from ±3V to ±18V. Operation with lower supplies is possible down to ±1.2V (two Ni-Cad batteries). However, with ±1.2V supplies, the device is stable only in closed loop gains of +2 or higher (or inverting gain of one or higher).
100k 1001 G24
1001 G23
APPLICATIONS INFORMATION
10k
Unless proper care is exercised, thermocouple effects caused by temperature gradients across dissimilar metals at the contacts to the input terminals, can exceed the inherent drift of the amplifier. Air currents over device leads should be minimized, package leads should be short, and the two input leads should be as close together as possible and maintained at the same temperature. Test Circuit for Offset Voltage and its Drift with Temperature *50k +15V 2 100Ω
*
50k
*
– +
3
7 LT1001
6
VO
4 –15V
VO = 1000VOS
* RESISTORS MUST HAVE LOW THERMOELECTRIC POTENTIAL. ** THIS CIRCUIT IS ALSO USED AS THE BURN-IN CONFIGURATION FOR THE LT1001, WITH SUPPLY VOLTAGES INCREASED TO ±20V. 1001 F01
1001fb
6
LT1001
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APPLICATIONS INFORMATION Offset Voltage Adjustment The input offset voltage of the LT1001, and its drift with temperature, are permanently trimmed at wafer test to a low level. However, if further adjustment of Vos is necessary, nulling with a 10k or 20k potentiometer will not degrade drift with temperature. Trimming to a value other than zero creates a drift of (Vos/300)µV/°C, e.g., if Vos is
adjusted to 300 µV, the change in drift will be 1 µV/°C. The adjustment range with a 10k or 20k pot is approximately ±2.5mV. If less adjustment range is needed, the sensitivity and resolution of the nulling can be improved by using a smaller pot in conjunction with fixed resistors. The example below has an approximate null range of ±100 µV. 0.1Hz to 10Hz Noise Test Circuit 0.1µF
Improved Sensitivity Adjustment VOLTAGE GAIN = 50,000
100kΩ
7.5k
(PEAK-TO-PEAK NOISE MEASURED IN 10 SEC INTERVAL)
+15V
1k 1 2 INPUT 3
2kΩ
7.5k
– +
–
10Ω
+
8 LT1001
7
OUTPUT
6
+
4.3k
22µF
LT1001 4.7 µF
DEVICE UNDER TEST
4 –15V
LT1001
100k
1001 F02
SCOPE ×1 RIN = 1MΩ
– 2.2µF
110k
0.1 µF
24.3k
1001 F03
The device under test should be warmed up for three minutes and shielded from air currents. DC Stabilized 1000v/µsec Op Amp 2.2µF TANTALUM
+15V
+ 300Ω
3.9k 1N914
2N5486
0.1µF 200Ω*
200pF
2N5160
0.01µF
22µF TANTALUM
+
2N3866 33Ω 1k RIN 1k
10k
INPUT
3
+ LT1001
15pF 2
2N4440
1.8k
30k
–15V 6
– 30k
2N3904
390Ω 2N3904
0.001µF
0.5Ω OUTPUT
470Ω 0.5Ω 22Ω 2N5160
2N3906
0.01µF 2N3866
2N4440 22µF TANTALUM
200pF
15-60pF TUSONIX # 519-3188
–
1.2k
3.9k
+
200Ω* 1N914
300Ω 0.1µF –15V 1001 F04
1k Rf
FULL POWER BANDWIDTH 8MHz
*ADJUST FOR BEST SQUARE WAVE AT OUTPUT 1001fb
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LT1001
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TYPICAL APPLICATIONS Photodiode Amplifier
Microvolt Comparator with TTL Output
100pF
5V
39.2Ω 1%
1.21M 1% NON INVERTING INPUT
2
INVERTING INPUT
3
7
–
5k 5%
4.99k 1%
8
500k 1% OUTPUT
2
LT1001
+
20k 5%
4
λ
2N3904
6
LT1001 3
IN914
–5V POSITIVE FEEDBACK TO ONE OF THE NULLING TERMINALS CREATES 5µ TO 20µV OF HYSTERESIS. INPUT OFFSET VOLTAGE IS TYPICALLY CHANGED BY LESS THAN 5µV DUE TO THE FEEDBACK.
– OUTPUT 1V/µA
+
500k 1%
100pF
1001 TA03
1001 TA04
Precision Current Sink
Precision Current Source
V + = 2V to 35V
5k R
5V 3
VIN
+
RC ≈ 10 –4
7 LT1001
5k
2
–
0 to (V – + 1V)
VIN
3
2N3685
LT1001 2
2N2219
4
7
+
0 to (V + – 1V)
6
–
6
2N3685 2N2219
4 10K
–5V
10k
1000pF
V IOUT = IN R
C
V – = –2 to –35V
V IOUT = IN R
R 1001 TA05 1001 TA06
Strain Gauge Signal Conditioner with Bridge Excitation 15V 15V 8.2k 2k*
LM329
3 4.99k*
100Ω
+ LT1001
2
6
–
REFERENCE OUT TO MONITORING A/D CONVERTER
2k 2N2219 IN4148
350Ω BRIDGE
3 * 301k
10k ZERO
+ LT1001
2
6
– 1µF
2
–
IN4148 LT1001
3
+
6
0V TO 10V OUT 340k*
1.1k* 2N2907 GAIN TRIM
2k 100Ω 5W
*RN60C FILM RESISTORS 1001 TA07
–15V 1001fb
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LT1001
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TYPICAL APPLICATIONS rejections. Worst-case summation of guaranteed specifications is tabulated below.
Large Signal Voltage Follower With 0.001% Worst Case Accuracy
OUTPUT ACCURACY
12V TO 18V 2
INPUT –10V TO 10V
RS 0k TO 10k
LT1001 3
LT1001AM /883
LT1001C
LT1001AM /883
LT1001C
Error
25°C Max.
25°C Max.
–55 to 125°C Max.
0 to 70°C Max.
Offset Voltage Bias Current Common Mode Rejection Power Supply Rejection Voltage Gain
15µV 20µV 20µV 18µV 22µV
60µV 40µV 30µV 30µV 25µV
60µV 40µV 30µV 36µV 33µV
110µV 55µV 50µV 42µV 40µV
Worst-case Sum Percent of Full Scale (=20V)
95µV
185µV
199µV
297µV
0.0005%
0.0009%
0.0010%
0.0015%
7
– +
6
OUTPUT –10V TO 10V
4 1001 TA08
–12V TO –18V
The voltage follower is an ideal example illustrating the overall excellence of the LT1001. The contributing error terms are due to offset voltage, input bias current, voltage gain, common mode and power-supply
Thermally Controlled NiCad Charger
15V
+ – *
BATTERY
– +
7
3
+
AMBIENT
LT1001
620k
2
–15V
10V, 1.2A HR NICAD STACK
IN4001 6
2k
–
2N6387 IN4148
4 CIRCUIT USES TEMPERATURE DIFFERENCE BETWEEN BATTERY PACK MOUNTED THERMOCOUPLE AND AMBIENT THERMOCOUPLE TO SET BATTERY CHARGE CURRENT. PEAK CHARGING CURRENT IS 1 AMP.
0.1µF
–15V
43k
0.6Ω 5W
10Ω 1µF *
* SINGLE POINT GROUND THERMOCOUPLES ARE 40µV/°C CHROMEL-ALUMEL (TYPE K)
*
1001 TA09
Precision Absolute Value Circuit 10k 0.1%
INPUT –10V TO 10V
10k 0.1%
2
IN4148
– LT1001
3
10k 0.1%
10k 0.1%
2
–
6
LT1001 3
+
6
OUTPUT 0V TO 10V
+
IN4148 10k 0.1% 1001 TA10
1001fb
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LT1001 U
TYPICAL APPLICATIONS Precision Power Supply with Two Outputs (1) 0V to 10V in 100µV STEPS (2) 0V to 100V in 1mV STEPS 22k* 43k* 100Ω (SELECT)
2
15V 100Ω 5W
–
2k LT1001
15V
3
2N2219
6
+
IN914
OUTPUT 1 0V-10V 25mA
8.2k TRIAD TY-90
VN-46
LM399
DIODES = SEMTECH # FF-15
KVD 00000 – 99999 + 1 VN-46
KELVIN-VARLEY DIVIDER ESI#DP311
–15V
4µF
10k* (SELECT)
+
680pF
TRIM–100V 100Ω
2.2µF
–
D CLK
6
LT301A 3
90k*
0.1µF
*JULIE RSCH. LABS #R-44 25k
2
OUTPUT 2 0V-100V, 25mA
+
Q
2N6533
+
6
22µF
33k
+
74C74
2
LT1001
IN914
+
3
15Ω
33k
33k
–
2k
Q
1.8k
15V
15V
15V
2N2907 CLAMP SET
5k
IN914 1001 TA11
Dead Zone Generator BIPOLAR SYMMETRY IS EXCELLENT BECAUSE ONE DEVICE, Q2, SETS BOTH LIMITS INPUT Q4 100k** 100k**
2
10k*
6
LM301A 3
8
+
100k
Q3
Q2
–
VSET DEAD ZONE CONTROL INPUT 0V TO 5V
2k
1 2 30pF
2N4393 Q1
47pF
10k*
4.7k
10k**
– LT1001
3
6
+
IN914
10k**
2
10k
3
15V 100k
15pF
2
– LM301A
3
+
6
4.7k
6
VOUT
+
2N4393 Q6 3.3k
Q5
LT1001
10k
4.7k
15pF
–
IN914
VSET
VOUT
1k
VIN
–15V
* 1% FILM ** RATIO MATCH 0.05% Q2, 3, 4, 5 CA 3096 TRANSISTOR ARRAY
VSET 1001 TA12
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10
LT1001
U
TYPICAL APPLICATIONS Instrumentation Amplifier with ±300V Common Mode Range and CMRR > 150dB 15V
820Ω
820Ω 3
+
10k
6
LT1001 2
–
OUTPUT
+
330k*
0.1µF S1
S3 1µF**
INPUT
0.2µF** 909Ω*
S2
200Ω GAIN TRIM
S4
(ACQUIRE)
(READ)
01
02 OUT
OUT
A
74C906 IN
IN
74C04
2k*
74C86
2k* 1
C 4022 EN
2 6
CLK
R 10k
1k
+
3
–
2
LM301A
5.6k* R1
0.1µF
1k
LM329
1) ALL DIODES IN4148 2) S1–S4 OPTO MOS SWITCH OFM-1A, THETA-J CORP. 3) *FILM RESISTOR 4) **POLYPROPYLENE CAPACITORS 5) ADJUST R1 for 93 Hz AT TEST POINT A
A FLYING CAPACITOR CHARGED BY CLOCKED PHOTO DRIVEN FET SWITCHES CONVERTS A DIFFERENTIAL SIGNAL AT A HIGH COMMON MODE VOLTAGE TO A SINGLE ENDED SIGNAL AT THE LT1001 OUTPUT.
1001 TA13
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11
LT1001
W
W
SCHE ATIC DIAGRA
V+ 7 6k
6k 8
1 40k
Q29
Q27 40k
Q25
Q13
Q11 Q5
Q24
Q28
Q14
1.5k
Q12
25k
Q6 3k
Q8
Q7
Q31
Q4
Q3
55pF
20pF
Q33 20Ω
+
500
Q1A
Q1B
Q2B
30pF
Q2A
3k Q21
–
20Ω
Q15
2
180Ω Q9 V– 4
Q19
Q32
Q22
T1 2k Q20
Q17
2k Q18
6
Q34
Q16
Q10 500
OUT
Q26
3
Q23
Q30 8k
120Ω
240Ω 1001 SS
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12
LT1001
U
PACKAGE DESCRIPTION
H Package 8-Lead TO-5 Metal Can (.200 Inch PCD) (Reference LTC DWG # 05-08-1320)
0.335 – 0.370 (8.509 – 9.398) DIA 0.305 – 0.335 (7.747 – 8.509) 0.040 (1.016) MAX
0.050 (1.270) MAX
SEATING PLANE
0.165 – 0.185 (4.191 – 4.699) GAUGE PLANE
0.010 – 0.045* (0.254 – 1.143)
REFERENCE PLANE 0.500 – 0.750 (12.700 – 19.050)
0.016 – 0.021** (0.406 – 0.533)
0.027 – 0.045 (0.686 – 1.143) PIN 1
45°TYP 0.028 – 0.034 (0.711 – 0.864)
0.200 (5.080) TYP
0.110 – 0.160 (2.794 – 4.064) INSULATING STANDOFF
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045" BELOW THE REFERENCE PLANE 0.016 – 0.024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) H8(TO-5) 0.200 PCD 1197
OBSOLETE PACKAGE
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LT1001
U
PACKAGE DESCRIPTION
J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110)
CORNER LEADS OPTION (4 PLCS)
0.023 – 0.045 (0.584 – 1.143) HALF LEAD OPTION 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION
0.005 (0.127) MIN
0.405 (10.287) MAX 8
7
6
5
0.025 (0.635) RAD TYP
0.220 – 0.310 (5.588 – 7.874)
1 0.300 BSC (0.762 BSC)
2
3
4
0.200 (5.080) MAX 0.015 – 0.060 (0.381 – 1.524)
0.008 – 0.018 (0.203 – 0.457)
0° – 15°
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS
0.045 – 0.065 (1.143 – 1.651) 0.014 – 0.026 (0.360 – 0.660)
0.100 (2.54) BSC
0.125 3.175 MIN J8 1298
OBSOLETE PACKAGE
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LT1001
U
PACKAGE DESCRIPTION
N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510)
0.400* (10.160) MAX 8
7
6
5
1
2
3
4
0.255 ± 0.015* (6.477 ± 0.381)
0.300 – 0.325 (7.620 – 8.255)
0.009 – 0.015 (0.229 – 0.381)
(
+0.035 0.325 –0.015 8.255
+0.889 –0.381
)
0.045 – 0.065 (1.143 – 1.651)
0.130 ± 0.005 (3.302 ± 0.127)
0.065 (1.651) TYP
0.100 (2.54) BSC
0.125 (3.175) 0.020 MIN (0.508) MIN 0.018 ± 0.003 (0.457 ± 0.076) N8 1098
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
1001fb
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
LT1001
U
PACKAGE DESCRIPTION
S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610)
0.189 – 0.197* (4.801 – 5.004) 8
7
6
5
0.150 – 0.157** (3.810 – 3.988)
0.228 – 0.244 (5.791 – 6.197)
SO8 1298
1 0.010 – 0.020 × 45° (0.254 – 0.508) 0.008 – 0.010 (0.203 – 0.254)
0.053 – 0.069 (1.346 – 1.752) 0°– 8° TYP
0.016 – 0.050 (0.406 – 1.270)
0.014 – 0.019 (0.355 – 0.483) TYP *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
2
3
4
0.004 – 0.010 (0.101 – 0.254)
0.050 (1.270) BSC
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16
Linear Technology Corporation
LT/CPI 0102 1.5K REV B • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507
●
www.linear.com
LINEAR TECHNOLOGY CORPORATION 1983
