LT1025ACJ8 Datasheet, PDF (12/12 Pages) Linear Technology – Micropower Thermocouple Cold Junction Compensator

LT1025
TYPICAL APPLICATIO
Grounded Thermocouple Amplifier with Positive Output
R1
10k
1%
+–
R3
R4
1M
10k
1%
R5 FULL-SCALE
2k ADJUST
TYPE J*
V⁺
V_IN
LT1025
GND R^–
R7
6.8k
J
C2
0.01µF
C1
0.01µF
V⁺
–
LTKA0x^††
+
V^–
R6**
8.4k
V_OUT
10mV/°C
LT1025 • TA07
* FOR BEST ACCURACY, THERMOCOUPLE RESISTANCE
SHOULD BE LESS THAN 50Ω
** SELECTED FOR 0°C TO 200°C RANGE
†† _{OR EQUIVALENT. SEE “AMPLIFIER CONSIDERATIONS”}
RELATED PARTS
PART NUMBER
LT1012
LTC1050
LTC2050
DESCRIPTION
Picoamp Input Current Op Amp
Zero Drift Amplifier
SOT-23 Zero Drift Amplifier
COMMENTS
120µV Max V_OS, 280pA Max I_OS
5µV Max V_OS, A_VOL 1V/µV Max
3µV Max V_OS
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
1025fb
LT/TP 1103 1K REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1988