Original LM35 Temperature Sensor is an integrated analogue temperature sensor whose electrical output is proportional to Degree Centigrade. LM35 Temperature Sensor does not require any external calibration or trimming to provide typical accuracies. The LM35โs low output impedance, a linear output, and precise inherent calibration make interfacing to readout or control circuitry especially easy.
ย ย ย ย ย ย ย The main advantage of LM35 is that it is linear i.e. 10mv/ยฐC which means for every degree rise in temperature the output of LM35 will rise by 10mv. So if the output of LM35 is 220mv/0.22V the temperature will be 22ยฐC. So if the room temperature is 32ยฐC then the output of LM35 will be 320mv i.e. 0.32V.ย
ย ย ย ย ย ย ย As such no extra components required to interface LM35 to ADC as the output of LM35 is linear with 10mv/degree scale. It can be directly interfaced to any 10 or 12 bit ADC. But if you are using an 8-bit ADC likeย ADC0808ย orย ADC0804ย an amplifier section will be needed if you require to measure 1ยฐC change.
LM35 can also be directly connected to Arduino. The output of LM35 temperature can also be given to comparator circuit and can be used for over-temperature indication or by using a simple relay can be used as a temperature controller.
Features of Original LM35 Temperature Sensor:
- Calibrated directly in Degree Celsius (Centigrade)
- Linear at 10.0 mV/ยฐC scale factor
- 0.5ยฐC accuracyย guarantee-ableย (at a25ยฐC)
- Rated for full -55ยฐC to a 150ยฐC range
- Suitable for remote applications
- Low cost due to wafer-level trimming
- Operates from 4 to 30 volts
- Less than 60 mA current drain
- Low self-heating, 0.08ยฐC instil an air
- Non-linearity only 0.25ยฐC typical
- Low impedance output, 0.1โฆfor 1 mA loadย
Specifications ofย Original LM35 Temperature Sensor:
- Local sensor accuracy (Max) (+/- C):ย 0.5
- Operating temperature range (C): -40 to 110,-55 to 150,0 to 100,0 to 70
- Supply voltage (Min) (V): 4
- Supply voltage (Max) (V): 30
- Supply current (Max) (uA): 14
- Sensor gain (mV/Deg C): 10
- Rating:ย Catalog
- Features:ย UL Recognized
- Interface:ย Analogย Output
Package Includes:
1 xย Original LM35 Temperature Sensor
Reviews
There are no reviews yet.