LT1025CS8 Linear Technology, LT1025CS8 Datasheet - Page 7
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LT1025CS8
Manufacturer Part Number
LT1025CS8
Description
IC COMPENSATR THERM MCRPWR 8SOIC
Manufacturer
Linear Technology
Type
Thermocouple Conditionerr
Datasheet
1.LT1025CN8PBF.pdf
(12 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LT1025CS8
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT1025CS8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1025CS8#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
APPLICATIO S I FOR ATIO
3. Calibrate output by adding in a true offset term which
does not affect gain (by summing, etc.). Calibration may
be done at any temperature either by immersing the
thermocouple in a calibrated bath or by substituting a
precision input voltage. The method which tends to
minimize worst-case error over the whole T
TYPICAL APPLICATIO S
TYPE K
1%
R1
1k
1 F
10k
R5
C2
U
100
R2
R6
9.1k
U
+
–
LTKA0x
0.1 F
255k
1%
R3
V
V
+
–
††
U
W
(Output Goes Negative with Increasing Temperature)
+
Type K Thermometer with Grounded Thermocouple
TYPE K
Eliminating Amplifier Feedback Resistors
–
††
OR EQUIVALENT. SEE “AMPLIFIER CONSIDERATIONS”
L
1 F
C2
3k
to T
U
GND
LT1025
H
V
V
2
3
IN
range
+
+
R
–
–
LTKA0x
V
O
0.1 F
15V
–15V
C1
7
4
††
–15V
V
is to calibrate at 1/6 or 5/6 of span. This may be modified
if best accuracy is desired at one particular point.
Breakpoint correction for nonlinearity is more compli-
cated than a simple offset, but a single breakpoint com-
bined with offset will reduce errors typically by 4:1 over a
simple offset technique.
–
R4*
470k
6
K
10mV/ C
V
GND
OUT
LT1025
15V
V
IN
R
–
V
V
–10mV/ C
*R4
OUT
MUST BE DECREASED APPROPRIATELY. R4 IS NOT
REQUIRED (OPEN) FOR LT1025 TEMPERATURES 0 C
WHEN SOURCING CURRENT ONLY
††
O
OR EQUIVALENT. SEE “AMPLIFIER CONSIDERATIONS”
30 A
–15V
V
–
300k
IF OUTPUT MUST SINK CURRENT, R4
LT1025
1025fb
7