參數(shù)資料
型號: LT1025CN8#PBF
廠商: Linear Technology
文件頁數(shù): 10/12頁
文件大小: 0K
描述: IC THERMO COMPNSATR MICRPWR 8DIP
標(biāo)準(zhǔn)包裝: 50
類型: 熱電偶調(diào)節(jié)器
輸入類型: 電壓
輸出類型: 電壓
電流 - 電源: 150µA
安裝類型: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 8-PDIP
包裝: 管件
產(chǎn)品目錄頁面: 1356 (CN2011-ZH PDF)
7
LT1025
1025fb
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 TL to TH range
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.
APPLICATIO S I FOR ATIO
WU
UU
TYPICAL APPLICATIO S
U
+
4
6
7
2
3
–15V
15V
–15V
–10mV/
°C
15V
3k
300k
GND
R
K
TYPE K
C1
0.1
F
C2
1
F
VIN
VO
VOUT
LT1025
LTKA0x
OR EQUIVALENT. SEE “AMPLIFIER CONSIDERATIONS”
Eliminating Amplifier Feedback Resistors
(Output Goes Negative with Increasing Temperature)
Type K Thermometer with Grounded Thermocouple
–15V
10mV/
°C
VOUT
V
+
V
V
V
GND
R
LT1025
+
V
+
R5
10k
R1
1k
1%
R6
9.1k
R4*
470k
R3
255k
1%
R2
100
TYPE K
0.1
F
C2
1
F
*R4
30
A
MUST BE DECREASED APPROPRIATELY. R4 IS NOT
REQUIRED (OPEN) FOR LT1025 TEMPERATURES
≥ 0°C
WHEN SOURCING CURRENT ONLY
OR EQUIVALENT. SEE “AMPLIFIER CONSIDERATIONS”
VIN
VO
IF OUTPUT MUST SINK CURRENT, R4
LTKA0x
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