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PDF SMT16030 Data sheet ( Hoja de datos )
| Número de pieza | SMT16030 | |
| Descripción | DIGITAL TEMPERATURE SENSOR | |
| Fabricantes | SMARTEC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SMT16030 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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SMT16030
Version 7/2005
SMT16030 DIGITAL TEMPERATURE SENSOR
Features
Absolute accuracy ± 0.7 °C
Linear output within 0.2 °C
Resolution better then 0.005 °C
Duty Cycle output
Calibrated on chip
TTL, CMOS compatible
Temperature range 175 °C (-45 to +130 °C)
Directly connectable to data input of microprocessor
Easy multiplexing of multiple sensors
Typical applications
Heater systems
Measuring instruments
Washing machines
Overheating protection
Appliances
Introduction
The Smartec temperature sensor is a sophisticated full silicon temperature sensor with a
digital output. The one wire output (duty-cycle modulated) can be directly connected to all
kinds of micro-controllers without the need of A/D conversion. The temperature range is –45
°C to 150 °C. The high resolution (< 0.005 °C) makes the sensor useful for high precision
applications. The sensor is available in various housings like T018, T092, T0220 and for high
volume production in SOIC. Special housing can be manufactured on request.
Product highlights
The SMART TEMPERATURE SENSOR features a duty-cycle modulated square wave
output voltage with linear response to temperatures in the -45 °C to +130 °C range. The
absolute accuracy is better than 1.2 °C. In the range from -30 to +100 °C absolute accuracy is
better than 0.7 °C, while the linearity is better than 0.2 °C (Model TO18).
SMARTEC B.V, Delpratsingel 26
4811 AP Breda, The Netherlands
-1–
WWW.SMARTEC.NL
Tel: +31(0)765205353
1 page  
SMT16030
Version 7/2005
Total accuracy
The mentioned equation is the nominal one. The maximum deviation from the nominal
equation is defined as total accuracy. With temperatures above 100 °C the accuracy
decreases.
Non linearity
Non-linearity as it applies to the SMT160-30 is the deviation from the best-fit straight line
over the whole temperature range. For the temperature range of -30 °C to +100 °C the non-
linearity is less than 0.2 °C (TO18).
Long-term drift
This drift strongly depends on the operating condition. At room temperature the drift is very
low (< 0.05 °C). However at higher temperatures the drift will be worse, mainly because of
changes in mechanical stress. This drift is partly irreversible and causes non-ideal
repeatability and long-term effects. At temperatures above 100 °C (but in the operating range)
a long-term drift better than 0.1 °C is to be expected.
Noise
The resolution is better than 0.005 °C. The standard deviation of the noise level (measured
over a 20 ms. period) is below this 0.005 °C.
Time constants
The time constant of the sensor is measured under different circumstances.
To compare this with other types of sensors the same kind of measurements were done. The
time constant is defined as the time required to reach 63% of an instantaneous temperature
change.
The figures mentioned below are difficult to measure; an accuracy of around 5 % is a
reasonable estimation. These figures only apply to the sensor built in a TO-18 housing and not
the TO-92, the TO220 nor the naked chip. The values found only depend on the physical
parameters of the measurement setup.
SMARTEC B.V, Delpratsingel 26
4811 AP Breda, The Netherlands
-5–
WWW.SMARTEC.NL
Tel: +31(0)765205353
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet SMT16030.PDF ] | |
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