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TMP451JQDQFTQ1 Datasheet(PDF) 21 Page - Texas Instruments

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Part No. TMP451JQDQFTQ1
Description  짹1째C Remote and Local Temperature Sensor With 管-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMP451JQDQFTQ1 Datasheet(HTML) 21 Page - Texas Instruments

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TMP451-Q1
www.ti.com
SLOS877B – OCTOBER 2014 – REVISED JUNE 2019
Product Folder Links: TMP451-Q1
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Copyright © 2014–2019, Texas Instruments Incorporated
Table 8. η-Factor Range (continued)
NADJUST
η
BINARY
HEX
DECIMAL
0000 1000
08
8
1.004152
0000 0110
06
6
1.005111
0000 0100
04
4
1.006072
0000 0010
02
2
1.007035
0000 0001
01
1
1.007517
0000 0000
00
0
1.008
1111 1111
FF
–1
1.008483
1111 1110
FE
–2
1.008967
1111 1100
FC
–4
1.009935
1111 1010
FA
–6
1.010905
1111 1000
F8
–8
1.011877
1111 0110
F6
–10
1.012851
1000 0000
80
–128
1.073837
7.6.1.8 Offset Register
The offset register allows the TMP451-Q1 device to store any system offset compensation value that might be
observed from precision calibration. The value in the register is stored in the same format as the temperature
result, and is added to the remote temperature result upon every conversion. Combined with the η-factor
correction, this function allows for very accurate system calibration over the entire temperature range.
7.6.1.9 General Call Reset
The TMP451-Q1 device supports reset using the two-wire general call address 00h (0000 0000b). The TMP451-
Q1 device acknowledges the general call address and responds to the second byte. If the second byte is 06h
(0000 0110b), the TMP451-Q1 device executes a software reset. This software reset restores the power-on reset
state to all TMP451-Q1 registers, and it aborts any conversion in progress. The TMP451-Q1 device takes no
action in response to other values in the second byte.
7.6.1.10 Identification Register
The TMP451-Q1 device allows for the two-wire bus controller to query the device for manufacturer and device
IDs to enable software identification of the device at the particular two-wire bus address. The manufacturer ID is
obtained by reading from pointer address FEh. The TMP451-Q1 device reads 55h for the manufacturer code.


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