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LT1025CS8#TR PDF预览

LT1025CS8#TR

更新时间: 2024-09-30 13:09:31
品牌 Logo 应用领域
凌特 - Linear 模拟IC信号电路光电二极管
页数 文件大小 规格书
12页 193K
描述
LT1025 - Micropower Thermocouple Cold Junction Compensator; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C

LT1025CS8#TR 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SOIC包装说明:SOP,
针数:8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.03模拟集成电路 - 其他类型:ANALOG CIRCUIT
JESD-30 代码:R-PDSO-G8JESD-609代码:e0
长度:4.9025 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):255认证状态:Not Qualified
座面最大高度:1.752 mm最大供电电压 (Vsup):36 V
最小供电电压 (Vsup):4 V标称供电电压 (Vsup):5 V
表面贴装:YES温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:3.899 mm
Base Number Matches:1

LT1025CS8#TR 数据手册

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LT1025  
Micropower Thermocouple  
Cold Junction Compensator  
U
FEATURES  
DESCRIPTIO  
80µA Supply Current  
The LT®1025 is a micropower thermocouple cold junction  
compensator for use with type E, J, K, R, S, and T  
thermocouples. It utilizes wafer level and post-package  
trimming to achieve 0.5°C initial accuracy. Special curvature  
correction circuitry is used to match the “bow” found in all  
thermocouples so that accurate cold junction compensation  
is maintained over a wider temperature range.  
4V to 36V Operation  
0.5°C Initial Accuracy (A Version)  
Compatible with Standard Thermocouples  
(E, J, K, R, S, T)  
Auxiliary 10mV/°C Output  
Available in 8-Lead PDIP and SO Packages  
TheLT1025willoperatewithasupplyvoltagefrom4Vto36V.  
Typical supply current is 80µA, resulting in less than 0.1°C  
internal temperature rise for supply voltages under 10V.  
A 10mV/°C output is available at low impedance, in addition  
to the direct thermocouple voltages of 60.9µV/°C (E),  
51.7µV/°C (J), 40.3µV/°C (K, T) and 5.95µV/°C (R, S). All  
outputs are essentially independent of power supply voltage.  
U
APPLICATIO S  
Thermocouple Cold Junction Compensator  
Centigrade Thermometer  
Temperature Compensation Network  
A special kit is available (LTK001) which contains an LT1025  
and a custom tailored thermocouple amplifier. The amplifier  
and compensator are matched to allow a much tighter specifi-  
cation of temperature error than would be obtained by adding  
the compensator and amplifier errors on a worst-case basis.  
The amplifier from this kit is available separately as LTKA0x.  
The LT1025 is available in either an 8-pin PDIP or 8-pin SO  
package for temperatures between 0°C and 70°C.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
W
U
BLOCK DIAGRA  
TYPICAL APPLICATIO  
Type K 10mV/°C Thermometer  
E 60.9µV/°C  
R2  
100Ω  
FULL-SCALE TRIM  
R3**  
255k  
1%  
V
IN  
J 51.7µV/°C  
+
R1  
1k  
1%  
BUFFER  
K,T 40.6µV/°C  
R, S 6µV/°C  
BOW*  
CORRECTION  
VOLTAGE  
+
V
+
C2  
V
0.1µF  
V
OUT  
10mV/°C  
LTKA0x††  
V
10mV/°C  
TEMPERATURE  
SENSOR  
IN  
LT1025  
K
+
+
V
R
COMMON  
*R4 ≤  
, R4 IS NOT REQUIRED  
30µA  
V
(OPEN) FOR LT1025 TEMPERATURES 0°C  
TYPE K  
R4*  
V
10mV/°C  
V
O
0
C1  
0.1µF  
GND  
R
**SELECTED FOR 0°C TO 100°C RANGE  
†† OR EQUIVALENT. SEE  
“AMPLIFIER CONSIDERATIONS”  
GND  
*CORRECTS FOR BOW  
IN COLD JUNCTION, NOT  
IN PROBE (HOT JUNCTION)  
LT1025 • BD01  
V
LT1025 • TA01  
1025fb  
1

LT1025CS8#TR 替代型号

型号 品牌 替代类型 描述 数据表
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