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LT1001_15

更新时间: 2024-01-07 15:09:37
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凌特 - Linear /
页数 文件大小 规格书
12页 330K
描述
Precision Operational Amplifier

LT1001_15 数据手册

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LT1001  
Precision Operational  
Amplifier  
U
FEATURES  
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  
improvedwhencomparedtoequivalentgradesofcom-  
peting precision amplifiers.  
Guaranteed Low Offset Voltage  
LT1001AM  
LT1001C  
Guaranteed Low Drift  
LT1001AM  
LT1001C  
Guaranteed Low Bias Current  
LT1001AM  
LT1001C  
Guaranteed CMRR  
LT1001AM  
LT1001C  
Guaranteed PSRR  
LT1001AM  
LT1001C  
Low Power Dissipation  
LT1001AM  
LT1001C  
Low Noise 0.3µVP-P  
15µV max  
60µV max  
0.6µV/°C max  
1.0µV/°C max  
2nA max  
4nA max  
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  
matchingspecifications, seetheLT1002. Shownbelow  
is a platinum resistance thermometer application.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
114dB min  
110dB min  
110dB min  
106dB min  
75mW max  
80mW max  
U
APPLICATIONS  
Thermocouple amplifiers  
Strain gauge amplifiers  
Low level signal processing  
High accuracy data acquisition  
Linearized Platinum Resistance Thermometer  
Typical Distribution  
of Offset Voltage  
with ±0.025°C Accuracy Over 0 to 100°C  
1MEG.**  
+15  
VS = ±15V, TA = 25°C  
R plat.  
20k  
1k= 0°C  
330k*  
GAIN  
TRIM  
954 UNITS  
200  
1.2k**  
FROM THREE RUNS  
10k*  
2
3
1 µf  
150  
+
2
6
LT1001  
6
10k*  
LT1001  
OUTPUT  
100  
3
LINEARITY  
TRIM  
0 TO 10V =  
0 TO 100°C  
+
200Ω  
50  
0
90k*  
20k  
10k*  
LM129  
OFFSET TRIM  
–60 –40  
–20  
0
20  
40  
60  
*
ULTRONIX 105A WIREWOUND  
Trim sequence: trim offset (°0C = 1000.0),  
trim linearity (°3C5= 1138.7), trim gain  
(1°0C0= 1392.6). Repeat until all three  
points are fixed wi±th0.025°C.  
INPUT OFFSET VOLTAGE (MICROVOLTS)  
** 1% FILM  
1001 TA02  
PLATINUM RTD  
118MF (ROSEMOUNT, INC.)  
1001 TA01  
1

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