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LT1001AC

Description
OP-AMP, 160 uV OFFSET-MAX, 0.8 MHz BAND WIDTH, CDIP8
Categoryaccessories   
File Size252KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
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LT1001AC Overview

OP-AMP, 160 uV OFFSET-MAX, 0.8 MHz BAND WIDTH, CDIP8

FEATURES
s
LT1001
Precision Operational
Amplifier
DESCRIPTION
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 10 mA 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.
s
s
s
s
s
s
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 0.3µV
P-P
APPLICATIONS
s
s
s
s
Thermocouple amplifiers
Strain gauge amplifiers
Low level signal processing
High accuracy data acquisition
Linearized Platinum Resistance Thermometer
with
±0.025°C
Accuracy Over 0 to 100°C
+15
R plat.
1kΩ = 0°C
1MEG.**
330k*
20k
1.2k**
10k*
GAIN
TRIM
LT1001
6
10k*
3
2
1
µf
NUMBER OF UNITS
2
LT1001
6
200Ω
LINEARITY
TRIM
OUTPUT
0 TO 10V =
0 TO 100°C
3
+
+
LM129
90k*
20k
OFFSET TRIM
10k*
0
–60
–40
0
20
40
60
–20
INPUT OFFSET VOLTAGE (MICROVOLTS)
1001 TA02
* 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
U
U
Typical Distribution
of Offset Voltage
V
S
=
±15V,
T
A
= 25°C
200
954 UNITS
FROM THREE RUNS
150
100
50
1

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