Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

TMP421 Datenblatt(PDF) 11 Page - Texas Instruments

Teilenummer TMP421
Bauteilbeschribung  짹1째C Remote and Local TEMPERATURE SENSOR
Download  34 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMP421 Datenblatt(HTML) 11 Page - Texas Instruments

Back Button TMP421_12 Datasheet HTML 7Page - Texas Instruments TMP421_12 Datasheet HTML 8Page - Texas Instruments TMP421_12 Datasheet HTML 9Page - Texas Instruments TMP421_12 Datasheet HTML 10Page - Texas Instruments TMP421_12 Datasheet HTML 11Page - Texas Instruments TMP421_12 Datasheet HTML 12Page - Texas Instruments TMP421_12 Datasheet HTML 13Page - Texas Instruments TMP421_12 Datasheet HTML 14Page - Texas Instruments TMP421_12 Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 34 page
background image
TMP421
TMP422
TMP423
www.ti.com
SBOS398C – JULY 2007 – REVISED MAY 2012
SERIES RESISTANCE CANCELLATION
changing bit 2 (RANGE) of Configuration Register 1
from low to high. The change in measurement range
Series resistance in an application circuit that typically
and data format from standard binary to extended
results
from
printed
circuit
board
(PCB)
trace
binary occurs at the next temperature conversion. For
resistance and remote line length is automatically
data captured in the extended temperature range
cancelled by the TMP421/22/23, preventing what
configuration, an offset of 64 (40h) is added to the
would otherwise result in a temperature offset. A total
standard binary value, as shown in the Extended
of up to 3k
Ω of series line resistance is cancelled by
Binary column of Table 1. This configuration allows
the TMP421/22/23, eliminating the need for additional
measurement of temperatures as low as –64°C, and
characterization and temperature offset correction.
as high as +191°C; however, most temperature-
See the two Remote Temperature Error vs Series
sensing diodes only measure with the range of –55°C
Resistance typical characteristic curves (Figure 4 and
to +150°C. Additionally, the TMP421/22/23 are rated
Figure 5) for details on the effects of series resistance
only for ambient temperatures ranging from –40°C to
and
power-supply
voltage
on
sensed
remote
+125°C.
Parameters
in
the
Absolute
Maximum
temperature error.
Ratings table must be observed.
DIFFERENTIAL INPUT CAPACITANCE
Table 1. Temperature Data Format (Local and
Remote Temperature High Bytes)
The
TMP421/22/23
tolerate
differential
input
capacitance of up to 1000pF with minimal change in
LOCAL/REMOTE TEMPERATURE REGISTER
HIGH BYTE VALUE (1°C RESOLUTION)
temperature error. The effect of capacitance on
sensed remote temperature error is illustrated in
STANDARD BINARY(1)
EXTENDED BINARY(2)
TEMP
Figure 6, Remote Temperature Error vs Differential
(°C)
BINARY
HEX
BINARY
HEX
Capacitance.
–64
1100 0000
C0
0000 0000
00
–50
1100 1110
CE
0000 1110
0E
TEMPERATURE MEASUREMENT DATA
–25
1110 0111
E7
0010 0111
27
0
0000 0000
00
0100 0000
40
Temperature measurement data may be taken over
an operating range of –40°C to +127°C for both local
1
0000 0001
01
0100 0001
41
and remote locations.
5
0000 0101
05
0100 0101
45
10
0000 1010
0A
0100 1010
4A
However, measurements from –55°C to +150°C can
25
0001 1001
19
0101 1001
59
be made both locally and remotely by reconfiguring
50
0011 0010
32
0111 0010
72
the TMP421/22/23 for the extended temperature
range, as described below.
75
0100 1011
4B
1000 1011
8B
100
0110 0100
64
1010 0100
A4
Temperature data that result from conversions within
125
0111 1101
7D
1011 1101
BD
the default measurement range are represented in
127
0111 1111
7F
1011 1111
BF
binary form, as shown in Table 1, Standard Binary
150
0111 1111
7F
1101 0110
D6
column. Note that although the device is rated to only
measure temperatures down to –55°C, it may read
175
0111 1111
7F
1110 1111
EF
temperatures
below
this
level.
However,
any
191
0111 1111
7F
1111 1111
FF
temperature below –64°C results in a data value of
(1)
Resolution is 1°C/count. Negative numbers are represented in
–64 (C0h). Likewise, temperatures above +127°C
two's complement format.
result in a value of 127 (7Fh). The device can be set
(2)
Resolution is 1°C/count. All values are unsigned with a –64°C
to measure over an extended temperature range by
offset.
Copyright © 2007–2012, Texas Instruments Incorporated
Submit Documentation Feedback
11
Product Folder Link(s): TMP421 TMP422 TMP423


Ähnliche Teilenummer - TMP421_12

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Texas Instruments
TMP421 TI1-TMP421_15 Datasheet
1Mb / 35P
[Old version datasheet]   짹1째C Remote and Local TEMPERATURE SENSOR
More results

Ähnliche Beschreibung - TMP421_12

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Texas Instruments
TMP421 TI1-TMP421_15 Datasheet
1Mb / 35P
[Old version datasheet]   짹1째C Remote and Local TEMPERATURE SENSOR
logo
Burr-Brown (TI)
TMP421 BURR-BROWN-TMP421 Datasheet
575Kb / 26P
   짹1째C Remote and Local TEMPERATURE SENSOR in SOT23-8
logo
Texas Instruments
TMP421 TI-TMP421 Datasheet
644Kb / 30P
[Old version datasheet]   짹1째C Remote and Local TEMPERATURE SENSOR in SOT23-8
logo
List of Unclassifed Man...
G781 ETC-G781 Datasheet
342Kb / 14P
   짹1째C Remote and Local Temperature Sensor with SMBus Serial Interface
logo
Texas Instruments
TMP422-EP TI1-TMP422-EP Datasheet
380Kb / 28P
[Old version datasheet]   짹1째C REMOTE TEMPERATURE AND 짹2.5째C LOCAL TEMPERATURE SENSOR IN SOT23-8
TMP422-EP TI1-TMP422-EP Datasheet
885Kb / 31P
[Old version datasheet]   짹1째C REMOTE TEMPERATURE AND 짹2.5째C LOCAL TEMPERATURE SENSOR IN SOT23-8
logo
Global Mixed-mode Techn...
G784 GMT-G784 Datasheet
178Kb / 1P
   짹1째C Remote and Local Temperature Sensor with SMBus Serial Interface
logo
Texas Instruments
TMP401 TI1-TMP401_15 Datasheet
992Kb / 41P
[Old version datasheet]   TMP401 짹1째C Programmable, Remote and Local, Digital Out Temperature Sensor
logo
Silicon Standard Corp.
SS8018 SSC-SS8018 Datasheet
289Kb / 14P
   짹1째C Remote and Local Temperature Sensor with SMBus Serial Interface
logo
Texas Instruments
TMP451 TI-TMP451 Datasheet
990Kb / 27P
[Old version datasheet]   짹1째C Remote and Local Temperature Sensor with 管-Factor and Offset Correction
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34


Datenblatt Download

Go To PDF Page


Link URL




Privatsphäre und Datenschutz
ALLDATASHEETDE.COM
War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Linktausch   |   Hersteller
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com