Details

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Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating Range	4		30	V
Output Voltage	Vout	Temp = +25掳C		750		mV
Temperature Sensitivity	S			10		mV/掳C
Quiescent Current	IQ	Ta = 25掳C		60		渭A
Operating Temperature Range			-55		150	掳C

Instructions for Using the LM35

1. Supply Voltage Connection:

   • Connect the supply voltage (Vcc) between 4V and 30V to the positive pin of the LM35.
   • Ensure a stable power supply to avoid fluctuations in output readings.

2. Output Voltage Measurement:

   • The output voltage is directly proportional to the temperature in Celsius, with a scale factor of 10mV/掳C.
   • For example, at 25掳C, the output should be 250mV.

3. Ground Connection:

   • Connect the ground (GND) pin to the common ground of your circuit to ensure accurate measurements.

4. Quiescent Current Consideration:

   • The quiescent current is very low (typically 60渭A), which minimizes self-heating effects and makes the sensor suitable for battery-operated applications.

5. Temperature Measurement Range:

   • The LM35 can measure temperatures from -55掳C to 150掳C without requiring any external calibration or trimming.

6. Mounting and Placement:

   • Place the LM35 away from heat-generating components to prevent inaccurate readings due to local heating.
   • Use proper mounting techniques to ensure good thermal contact if measuring surface temperatures.

7. Signal Conditioning:

   • If necessary, use amplifiers or ADCs to condition the output signal for further processing or digital interfacing.

(For reference only)