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Questions tagged [lm35]

An LM35 is an analog temperature sensor.

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2answers
41 views

Lm35 max input current - i have a wrong output from the sensor

I’m currently doing a small project. I’m trying to make my first pcb. That’s for a light I made. But the LM35DZ outputs a wrong voltage. My LM35 puts out 4.6V instead of 380mV. With a 12v - 2a ...
-1
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2answers
65 views

LM35 sensor giving weird readings [closed]

I am a mechanical engineering student and I'm quite bad at electronics so I decided to post here. For my dissertation, I require 2 circuits using the same 5.7 V DC power supply. One of the circuits is ...
0
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1answer
75 views

LM35 temperature sensor strange behaviour

I have a set of LM35 temperature sensors hooked up to an Arduino. I find it hard to believe all 3 sensors are broken. The Arduino code is very simple. ...
0
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1answer
65 views

LM35 bypass capacitors

I'm used to always use 100 nF (0.1 uF) ceramic capacitors as bypassing capacitors for ICs. However, in the LM35 datasheet I find two different figures: The circuit above I need, since I probably ...
6
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1answer
684 views

Why there are two diodes instead of one used for an LM35 negative temperature circuit?

See the system examples of the LM35 temperature sensor datasheet on page 16, see picture. This should be used for negative temperatures. However, the voltage change is 10 mV/C and it supports -55 C ...
2
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1answer
118 views

Output of LM35 temperature sensor > 3.3 V?

According to the datasheet the maximum rating of the output of an LM35 is 6 V. However, the output should give 10 mV/C and it supports upto 150 C, which results in 10 mV/C * 150 C = 1500 mV which is ...