Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

TMP122 Datasheet(PDF) 9 Page - Texas Instruments

Part # TMP122
Description  1.5°C Accurate Programmable Digital Temperature Sensors with SPI™ Interface
PDF  21 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TMP122 Datasheet(HTML) 9 Page - Texas Instruments

Back Button TMP122 Datasheet HTML 5Page - Texas Instruments TMP122 Datasheet HTML 6Page - Texas Instruments TMP122 Datasheet HTML 7Page - Texas Instruments TMP122 Datasheet HTML 8Page - Texas Instruments TMP122 Datasheet HTML 9Page - Texas Instruments TMP122 Datasheet HTML 10Page - Texas Instruments TMP122 Datasheet HTML 11Page - Texas Instruments TMP122 Datasheet HTML 12Page - Texas Instruments TMP122 Datasheet HTML 13Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 21 page
background image
TMP122, TMP124
9
SBOS272B
www.ti.com
CONVERSION TIME
R1
R0
RESOLUTION
(typical)
0
0
9 Bits (0.5
°C) plus sign
30ms
0
1
10 Bits (0.25
°C) plus sign
60ms
1
0
11 Bits (0.125
°C) plus sign
120ms
1
1
12 Bits (0.0625
°C) plus sign
240ms
TABLE XI. Resolution of the TMP122 and TMP124.
CONVERTER RESOLUTION (R1/R0)
The Converter Resolution Bits control the resolution of the
internal Analog-to-Digital (A/D) converter. This allows the user
to maximize efficiency by programming for higher resolution or
faster conversion time. Table XI identifies the Resolution Bits
and the relationship between resolution and conversion time.
The TMP122/TMP124 have a default resolution of 12 bits.
DELAY TIME
The Delay Bits control the amount of time delay between each
conversion. This feature allows the user to maximize power
savings by eliminating unnecessary conversions, and minimiz-
ing current consumption. During active conversion the TMP122/
TMP124 typically requires 50
µA of current for approximately
0.25s conversion time, and approximately 20
µA for idle times
between conversions. Delay settings are identified in Table XII
as conversion time and period, and are shown in Figure 9.
Default power up is D1/D0 equal 0/0. Conversion time and
conversion periods scale with resolution. Conversion period
denotes time between conversion starts.
D1
D0
CONVERSION TIME
CONVERSION PERIOD
0
0
0.25s
0.25s
0
1
0.25s
0.5s
1
0
0.25s
1s
1
1
0.25s
8s
TABLE XII. Conversion Delay for 12-Bit Resolution.
FIGURE 9. Conversion Time and Period Description.
PARAMETER
MIN
MAX
UNITS
SCK Period
t1
100
ns
Data In to Rising Edge SCK Setup Time
t2
20
ns
SCK Falling Edge to Output Data Delay
t3
30
ns
SCK Rising Edge to Input Data Hold Time
t4
20
ns
CS to Rising Edge SCK Set-Up Time
t5
40
ns
CS to Output Data Delay
t6
30
ns
CS Rising Edge to Output High Impedance
t7
30
ns
TABLE XIII. Timing Description.
0.25s
D1/D0 = 0/1
D1/D0 = 1/0
D1/D0 = 1/1
12-Bit Resolution
0.25s
1s
8s
0.25s
0.5s
50
µA (active)
20
µA (idle)
Timing Diagrams
The TMP122/TMP124 are SPI compatible. Figures 10 to 12
describe the various timing parameters of the TMP122/
TMP124 with timing definitions in Table XIII.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
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