LT1025 - LT1025是Micropower Thermocouple Cold Junction Compensator

LT1025是LINEAR凌力尔特公司的一款热电偶补偿器产品，LT1025是LT1025是Micropower Thermocouple Cold Junction Compensator，本站介绍了LT1025的封装应用图解、特点和优点、功能等，并给出了与LT1025相关的LINEAR元器件型号供参考。

LT1025 - LT1025是Micropower Thermocouple Cold Junction Compensator - 热电偶补偿器 - 信号调理 - 凌力尔特

LT1025 - Micropower Thermocouple Cold Junction Compensator

LT1025 - Micropower Thermocouple Cold Junction Compensator - Linear Technology（凌力尔特）

功能描述

The LT?1025 is a micropower thermocouple cold junctioncompensator for use with type E, J, K, R, S, and Tthermocouples. It utilizes wafer level and post-packagetrimming to achieve 0.5°C initial accuracy. Special curvaturecorrection circuitry is used to match the ?bow? found in allthermocouples so that accurate cold junction compensationis maintained over a wider temperature range.

The LT1025 will operate with a supply voltage from 4V to 36V.Typical supply current is 80μA, resulting in less than 0.1°Cinternal temperature rise for supply voltages under 10V.A 10mV/°C output is available at low impedance, in additionto the direct thermocouple voltages of 60.9μV/°C (E),51.7μV/°C (J), 40.3μV/°C (K, T) and 5.95μV/°C (R, S). Alloutputs are essentially independent of power supply voltage.

A special kit is available (LTK001) which contains an LT1025and a custom tailored thermocouple amplifier. The amplifierand compensator are matched to allow a much tighter specificationof temperature error than would be obtained by addingthe 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 SOpackage for temperatures between 0°C and 70°C.

特点

80µA Supply Current

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

应用

Thermocouple Cold Junction Compensator

Centigrade Thermometer

Temperature Compensation Network

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LT1025ACN8	N-8	C	$5.75	$4.60
LT1025ACN8#PBF	N-8	C	$5.75	$4.60
LT1025CN8	N-8	C	$3.08	$2.55
LT1025CN8#PBF	N-8	C	$3.08	$2.55
LT1025CS8	SO-8	C	$4.21	$2.95
LT1025CS8#PBF	SO-8	C	$4.21	$2.95
LT1025CS8#TR	SO-8	C		$3.01
LT1025CS8#TRPBF	SO-8	C		$3.01

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