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LM185BYH-2.5 데이터시트(HTML) 8 Page - Texas Instruments

부품명 LM185BYH-2.5
상세내용  LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower Voltage Reference Diode
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제조사  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
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LM185BYH-2.5 데이터시트(HTML) 8 Page - Texas Instruments

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LM185-2.5-N, LM285-2.5-N, LM385-2.5-N
SNVS743D – DECEMBER 1999 – REVISED MARCH 2013
www.ti.com
Calibration
Calibration
1.
Short LM385-2.5-N, adjust R3 for IOUT=temp at 1.8 μA/°K
1.
Short LM385-2.5-N, adjust R3 for IOUT=temp at 1μA/°K.
2.
Remove short, adjust R2 for correct reading in °F
2.
Remove short, adjust R2 for correct reading in centigrade
Figure 20. 0°C–100°C Thermomemter
Figure 21. 0°F–50°F Thermomemter
Adjustment Procedure
1.
Adjust TC ADJ pot until voltage across R1 equals Kelvin temperature multiplied by the thermocouple Seebeck
coefficient.
2.
Adjust zero ADJ pot until voltage across R2 equals the thermocouple Seebeck coefficient multiplied by 273.2.
Figure 22. Micropower Thermocouple Cold Junction Compensator
Thermocouple Type(1)
Seebeck
R1
R2
Voltage Across R1
Voltage Across R2
Coefficient
(
Ω)
(
Ω)
@25°C
(mV)
(μV/°C)
(mV)
J
52.3
523
1.24k
15.60
14.32
T
42.8
432
1k
12.77
11.78
K
40.8
412
953
Ω
12.17
11.17
S
6.4
63.4
150
Ω
1.908
1.766
(1)
Typical supply current 50
μA
8
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Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: LM185-2.5-N LM285-2.5-N LM385-2.5-N


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