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LT1001 の電気的特性と機能
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LT1001のメーカーはLinear Technologyです、この部品の機能は「Precision Operational Amplifier」です。 |
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製品の詳細 ( Datasheet PDF )
| 部品番号 LT1001 |
| 部品説明 Precision Operational Amplifier |
| メーカ Linear Technology |
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このページの下部にプレビューとLT1001ダウンロード（pdfファイル）リンクがあります。 Total 16 pages |
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FEATURES
s Guaranteed Low Offset Voltage
LT1001AM
15µV max
LT1001C
60µV max
s Guaranteed Low Drift
LT1001AM 0.6µV/°C max
LT1001C 1.0µV/°C max
s Guaranteed Low Bias Current
LT1001AM
2nA max
LT1001C
4nA max
s Guaranteed CMRR
LT1001AM
114dB min
LT1001C
110dB min
s Guaranteed PSRR
LT1001AM
110dB min
LT1001C
106dB min
s Low Power Dissipation
LT1001AM 75mW max
LT1001C
80mW max
s Low Noise 0.3µVP-P
U
APPLICATIO S
s Thermocouple amplifiers
s Strain gauge amplifiers
s Low level signal processing
s High accuracy data acquisition
LT1001
Precision Operational
Amplifier
DESCRIPTIO
The LT®1001 significantly advances the state-of-the-
art of precision operational amplifiers. In the design,
processing, and testing of the device, particular atten-
tion has been paid to the optimization of the entire
distribution of several key parameters. Consequently,
the specifications of the lowest cost, commercial tem-
perature device, the LT1001C, have been dramatically
improved when compared to equivalent grades of com-
peting precision amplifiers.
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 re-
jection 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 dissipa-
tion 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 perfor-
mance in a dual precision op amp, with guaranteed
matching specifications, see the LT1002. Shown below
is a platinum resistance thermometer application.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
+15
1.2k**
Linearized Platinum Resistance Thermometer
with ±0.025°C Accuracy Over 0 to 100°C
1MEG.**
R plat. †
1k = 0°C
330k*
20k
GAIN
TRIM
10k* 2 –
LT1001
3+
6
10k*
1µf
2–
LT1001
3+
6
OUTPUT
LINEARITY
200Ω TRIM
0 TO 10V =
0 TO 100°C
LM129
90k* 20k
OFFSET TRIM
10k*
* ULTRONIX 105A WIREWOUND
** 1% FILM
† PLATINUM RTD
118MF (ROSEMOUNT, INC.)
‡ 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.
1001 TA01
Typical Distribution
of Offset Voltage
VS = ±15V, TA = 25°C
200 954 UNITS
FROM THREE RUNS
150
100
50
0
–60 –40 –20 0 20 40
INPUT OFFSET VOLTAGE (µV)
60
1001 TA02
1001fb
1
1 Page
LT1001
ELECTRICAL CHARACTERISTICS The q 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
VOUT Maximum Output Voltage Swing
SR Slew Rate
GBW Gain-Bandwidth Product
Pd Power Dissipation
CONDITIONS
RL ≥ 2kΩ
RL ≥ 1kΩ
RL ≥ 2kΩ (Note 5)
(Note 5)
No load
No load, VS = ±3V
LT1001AM/883
LT1001AC
MIN TYP MAX
±13 ±14
±13 ±14
±12 ±13.5
0.1 0.25
0.4 0.8
46 75
46
LT1001M/ LT1001C
MIN TYP MAX
±13 ±14
±13 ±14
±12 ±13.5
0.1 0.25
0.4 0.8
48 80
48
UNITS
V
V
V
V/µs
MHz
mW
mW
VS = ±15V, – 55°C ≤ TA ≤ 125°C, unless otherwise noted
SYMBOL PARAMETER
VOS
∆VOS
∆Temp
IOS
IB
AVOL
CMRR
Input Offset Voltage
Average Offset Voltage Drift
Input Offset Current
Input Bias Current
Large Signal Voltage Gain
Common Mode Rejection Ratio
PSRR Power Supply Rejection Ratio
Input Voltage Range
VOUT Output Voltage Swing
Pd Power Dissipation
CONDITIONS
RL ≥ 2kΩ, VO = ±10V
VCM = ±13V
VS = ±3 to ±18V
RL ≥ 2kΩ
No load
LT1001AM/883
MIN TYP MAX
LT1001M
MIN TYP MAX
q 30 60
45 160
q 0.2 0.6
0.3 1.0
q 0.8 4.0
q ±1.0 ±4.0
q 300 700
q 110 122
q 104 117
q ±13 ±14
q ±12.5 ±13.5
q 55 90
200
106
100
± 13
±12.0
1.2
±1.5
700
120
117
± 14
±13.5
60
7.6
±8.0
100
UNITS
µV
µV/°C
nA
nA
V/mV
dB
dB
V
V
mW
VS = ±15V, 0°C ≤ TA ≤ 70°C, unless otherwise noted
SYMBOL PARAMETER
CONDITIONS
VOS Input Offset Voltage
∆VOS Average Offset Voltage Drift
∆Temp
IOS
IB
AVOL
CMRR
PSRR
Input Offset Current
Input Bias Current
Large Signal Voltage Gain
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Input Voltage Range
RL ≥ 2kΩ, VO = ±10V
VCM = ±13V
VS = ±3V to ±18V
VOUT Output Voltage Swing
Pd Power Dissipation
RL ≥ 2kΩ
No load
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.
LT1001AC
MIN TYP MAX
LT1001C
MIN TYP MAX
q 20 60
30 110
q 0.2 0.6
0.3 1.0
UNITS
µV
µV/°C
q 0.5 3.5
0.6 5.3
nA
q ±0.7 ±3.5
q 350 750
±1.0 ±5.5
250 750
nA
V/mV
q 110 124
106 123
dB
q 106 120
103 120
dB
q ±13 ±14
q ±12.5 ±13.8
q 50 85
±13
±12.5
± 14
±13.8
55
90
V
V
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
3
3Pages
LT1001
TYPICAL PERFORMANCE CHARACTERISTICS
Small Signal Transient Response
Voltage Follower Overshoot
vs Capacitive Load
100
VS = ±15V
TA = 25°C
80
VIN = 100mV
RL > 50k
60
Small Signal Transient Response
40
20
AV = +1, CL = 50pF
1001 G19
Large Signal Transient Response
1001 G22
0
100
1000
10,000
100,000
CAPACITIVE LOAD (pF)
1001 G20
Maximum Undistorted
Output vs. Frequency
28
VS = ±15V
24 TA = 25°C
20
16
12
8
4
0
1 10 100 1000
FREQUENCY (kHz)
1001 G23
AV = +1, CL = 1000pF
1001 G21
Closed Loop Output Impedance
100
10
AV = 1000
1
AV = +1
0.1
0.01
0.001
1
IO = ±1mA
VS = ±15V
TA = 25°C
10 100 1k 10k
FREQUENCY (Hz)
100k
1001 G24
APPLICATIONS INFORMATION
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). How-
ever, with ±1.2V supplies, the device is stable only in
closed loop gains of +2 or higher (or inverting gain of one
or higher).
6
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
100Ω *
50k *
+15V
2– 7
LT1001
+
6
VO
34
* RESISTORS MUST HAVE LOW
–15V
THERMOELECTRIC POTENTIAL.
** THIS CIRCUIT IS ALSO USED AS THE BURN-IN
VO = 1000VOS
CONFIGURATION FOR THE LT1001, WITH SUPPLY
VOLTAGES INCREASED TO ±20V.
1001 F01
1001fb
6 Page
合計 : 16 ページ |
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データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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