参数资料
| 型号： | LT1025ACN8 |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC THERMO COMPNSATR MICRPWR 8DIP |
| 标准包装： | 50 |
| 类型： | 热电偶调节器 |
| 输入类型： | 电压 |
| 输出类型： | 电压 |
| 电流 - 电源： | 150µA |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
1
LT1025
1025fb
DESCRIPTIO
U
APPLICATIO S
U
s
80
A Supply Current
s
4V to 36V Operation
s
0.5
°C Initial Accuracy (A Version)
s
Compatible with Standard Thermocouples
(E, J, K, R, S, T)
s
Auxiliary 10mV/
°C Output
s
Available in 8-Lead PDIP and SO Packages
s
Thermocouple Cold Junction Compensator
s
Centigrade Thermometer
s
Temperature Compensation Network
Micropower Thermocouple
Cold Junction Compensator
Type K 10mV/
°C Thermometer
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.
TheLT1025willoperatewithasupplyvoltagefrom4Vto36V.
Typical supply current is 80
A, 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 60.9
V/°C (E),
51.7
V/°C (J), 40.3V/°C (K, T) and 5.95V/°C (R, S). All
outputs are essentially independent of power supply voltage.
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.
–
+
BOW*
CORRECTION
VOLTAGE
BUFFER
VIN
GND
E 60.9
V/°C
V0 10mV/°C
R– COMMON
J 51.7
V/°C
K,T 40.6
V/°C
R, S 6
V/°C
10mV/
°C
TEMPERATURE
SENSOR
*CORRECTS FOR BOW
IN
COLD JUNCTION, NOT
IN PROBE (HOT JUNCTION)
LT1025 BD01
+
–
LTKA0x
TYPE K
R4*
V+
R1
1k
1%
C2
0.1
F
C1
0.1
F
–+
R2
100
FULL-SCALE TRIM
VOUT
10mV/
°C
R3**
255k
1%
V–
30
A
V–
GND R–
VO
K
LT1025
*R4
≤
, R4 IS NOT REQUIRED
(OPEN) FOR LT1025 TEMPERATURES
≥ 0°C
**SELECTED FOR 0
°C TO 100°C RANGE
OR EQUIVALENT. SEE
“AMPLIFIER CONSIDERATIONS”
VIN
LT1025 TA01
FEATURES
, LTC and LT are registered trademarks of Linear Technology Corporation.
BLOCK DIAGRA
W
TYPICAL APPLICATIO
U
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1025ACN8#PBF | 功能描述:IC THERMO COMPNSATR MICRPWR 8DIP RoHS:是 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG，串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 |
| LT1025ACN8#PBF | 制造商:Linear Technology 功能描述:IC SENSOR TEMPERATURE 0.5DE 制造商:Linear Technology 功能描述:IC, SENSOR, TEMPERATURE, 0.5DEG C, DIP-8 |
| LT1025CJ8 | 制造商:Linear Technology 功能描述:Micropower Thermocouple Cold Junction Compensator 8-Pin CDIP |
| LT1025CN | 制造商:Linear Technology 功能描述:MICROPOWER THERMOCOUPLE 1025 DIP8 |
| LT1025CN#PBF | 制造商:Linear Technology 功能描述:MICROPOWER THERMOCOUPLE 1025 DIP8 制造商:Linear Technology 功能描述:MICROPOWER THERMOCOUPLE, 1025, DIP8 |
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