Saturday, November 24, 2012

Sensor LM35

In National Analog and Interface Products Data Book (2002) noted that the IC is a precision temperature sensor with a linear output that has a temperature in degrees Celsius rise. LM35 sensors there are two types namely the type and LM35DZ LM35CZ. The difference of the two types that are at the limit of the width of the temperature measurement. The width of the temperature range that can be measured by LM35DZ is 0Celcius to +100 Celsius, while LM35CZ type capable of measuring the temperature with a wider range limit ie-40Celcius to +110 Celsius. LM35 also requires no special calibration to provide accuracy at room temperature about 1/4C and 3/4C less than the width of the temperature range for each type of LM35. LM35 has a low impedance output with a linear output. This sensor uses a single power supply or the plus and minus supply, limits to the voltage source is a-0.2V to +35 V. In application sensor LM35 has an output voltage proportional to Celsius, the output voltage limit of +6 V to-1V for different temperatures according to the width limit of measurement. In addition it also has the LM35 linear voltage output 10 mV / C and low output impedance of 0.1 ohms at a current of 1 mA.

Some type IC LM35

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