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DS1922L/DS1922T
iButton Temperature Loggers
with 8KB Data-Log Memory
Numerical Correction Example
Pin Configuration
CONVERTED DATA FROM
CALIBRATION MEMORY
ERROR VALUES
F5 SIZE
5.89mm
Tr1 = 60°C
—
0.51mm
BRANDING
Tr2 = -10.1297°C
Tr3 = 24.6483°C
Err2 = 0.0672°C
Err3 = -0.1483°C
ut
t o n ? . c
16.25mm
Tc2 = -10.0625°C
Err1 = 0.0672°C
#
W
Tc3 = 24.5°C
RESULTING CORRECTION
—
APPLICATION OF
CORRECTION
A1 ? 41
000000FBC52B
1-Wire ?
Thermochron ?
ZZZ D S1922L
17.35mm
COEFFICIENTS
COEFFICIENTS TO SAMPLE
B = -0.008741
A = 0.000175/°C
READING
—
T C = 22.500°C
IO
GND
C = -0.039332°C
T CORR = 22.647°C
Package Information
Note: The software correction requires floating-point arithmetic
(24 bit or better). Suitable math libraries for microcontrollers are
found on various websites and are included in cross compilers.
For the latest package outline information and land patterns (foot-
prints), go to www.maximintegrated.com/packages . Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
F5 Can
PACKAGE
CODE
IB#6CB
OUTLINE
NO.
21-0266
LAND
PATTERN NO.
—
Thermochron is a registered trademark of Maxim Integrated Products, Inc.
Maxim Integrated
51
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