LT1025CS8 Linear Technology, LT1025CS8 Datasheet - Page 8

• Manufacturer Part Number: LT1025CS8
• Description: IC COMPENSATR THERM MCRPWR 8SOIC
• Manufacturer: Linear Technology
• Type: Thermocouple Conditionerr

Specifications of LT1025CS8

• Input Type: Voltage
• Output Type: Voltage
• Current - Supply: 150µA
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -

LT1025
TYPICAL APPLICATIO S
8
Utilizing Negative LT1025 Drive to Accommodate Grounded Thermocouple*
*C1 AND C2 FILTER RIPPLE AND NOISE, BUT WILL LIMIT AC COMMON-MODE REJECTION
**USE LOWEST POSSIBLE SUPPLY VOLTAGE TO MINIMIZE INTERNAL TEMPERATURE RISE
†
††
IF NOT MATCHED. SUGGESTED VALUES ARE 0.001 F TO 0.1 F
FOR BEST ACCURACY, THERMOCOUPLE RESISTANCE SHOULD BE LESS THAN 100
OR EQUIVALENT. SEE “AMPLIFIER CONSIDERATIONS”
6V
TYPE K
U
V
CM
–
†
–
47k
R5
TYPE E
–15V
*SEE “REVERSING THE POLARITY OF THE 10mV/ C OUTPUT”
††
GND
+
LT1025
OR EQUIVALENT. SEE “AMPLIFIER CONSIDERATIONS”
Differential Thermocouple Amplifier
LT1025
15V
+
V
GND
5V**
V
IN
141k
IN
–10mV/ C
1 F
R4
10k
0.1%
R7
15k
R6
0.1%
10k
R2
10k
R1
V
V
O
O
0.1%
1M
R4
–15V
V
+
–
–
LTKA0x
R5
3k
R9
100k
–15V
0.1%
15V
1M
R3
+
–
=
LTKA0x
C2*
††
V
10mV/ C
(V
OUT
C1*
–
V
V
)(10k)
+
(MAX)
††
–
C1
0.1 F
1%
R1
1k
7.5k
1%
1%
R6
R8
5k
R2
100
R3
141k
1%
R7
500
FULL-SCALE
TRIM
10mV/ C
0 C TO 500 C
V
OUT
V
10mV/ C
OUT
1025fb