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參數(shù)資料
| 型號： | ASM121 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 熱敏電阻 |
| 英文描述： | SIMISTOR⑩ TEMPERATURE SENSOR ULTRA-LOW-POWER SILICON THERMISTOR |
| 中文描述： | SIMISTOR⑩溫度傳感器超低功率硅熱敏電阻 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 249K |
| 代理商： | ASM121 |
New Release Specification
General Description
Andigilog, Inc. 2004
www.andigilog.com
July 2005 - 70A04006
S
I
MISTOR
T
EMPERATURE
S
ENSOR
U
LTRA
-L
OW
-P
OWER
S
ILICON
T
HERMISTOR
aSM121
P
RODUCT
S
PECIFICATION
The aSM121 is a high-precision, 3-lead CMOS silicon
thermistor in an ultra-small leadless package that provides
a cost-effective solution for applications requiring high-
accuracy low-power temperature monitoring. The aSM121
functions in a way that is similar to a PTC thermistor.
However, it is linear-calibrated, enabling application
developers to directly interpret output voltage as
temperature without complex compensation for non-
linearity.
The aSM121 output voltage ramp has a positive slope of
10mV/°C that is independent of supply voltage. The
aSM121 has a guaranteed room temperature (25°C)
accuracy of ±1°C. The aSM121 does not require external
calibration - each device is calibrated at the factory.
Features
Applications
Precision Calibrated to ±1°C at 25°C
Temperature Range: -30°C to 125°C
Extremely Linear Output Ramp: 10mV/°C
0
°
C Output: 0.50V
Output Ramp is Calibrated to Degrees Celsius
Low Operating Current: 14
μ
A
Operating Voltage Range: +2.7 V to +3.6V
Non-linearity:
≤
0.8
°
C
1.2mm x 1.5mm QFN Package
Mobile Phones
Mobile Communications Terminals
Computers
Battery Management
FAX Machines/Printers/Copiers
Portable Medical Instruments
HVAC, Power Supply Modules
Disk Drives
Automotive Control Circuits
Pin Configuration
GND
V
OUT
1
aSM121
V
DD
QFN-3
2
3
Top view, contacts underneath,
actual part marking below
Accuracy vs Temperature
Temperature (°C)
-4
-3
-1
0
1
2
3
upper spec limits
0
80
100
lower spec limits
25
120
125
60
40
20
-20
-40
4
A
-2
Ordering Information
Part Number
Package
Temperature Range
Part Marking
How Supplied
aSM121Q3
m – month / year code
3-Lead QFN
-30
C to +125
C
Jm
3000 units on T&R
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