Analog Sensor and Digital Sensor

When it comes to analog sensors and digital sensors, they primarily differ in their output methods. Analog sensors behave like a smooth, changing line, producing a continuous signal, while digital sensors produce a signal made up of individual numbers, which look like a series of steps.

Devices like computers require extra processing to read signals from analog sensors. This process sometimes distorts the data and makes it susceptible to interference. Digital sensors are more reliable and resistant to interference because they generate a digital signal directly from the sensor.

Therefore, it can be concluded that the main difference between the two sensors is the data processing technology and the type of output signal. It also improves measurement accuracy and interference resistance, so it is used in a wide range of application fields.

Below, we will introduce some representative product models and take a closer look at the electronic components of each sensor.

The first one we will introduce is TI's LM94022BIMG. This temperature sensor is flexible and reliable and can handle temperatures from 50℃ to 150℃. The resolution is 5.5 ~ 13.6 mV and very accurate The ability to read both analog and digital temperatures is great Works with a power supply of 1.5 ~ 5.5 V with an accuracy of ± 1.5 ~ 2.7 °C. This is similar to having a temperature expert. Additionally, the versatility of package sizes makes them easy to use in a range of applications requiring thermal intelligence.

LM94022BIMG

Let's take a look at the temperature sensor! Analog Devices Inc.'s DS18S20Z+T&R is an impressive device. It can withstand temperatures from -55℃ to 125℃, very hot and cold. It also has cool features like programmable limits and standby mode. Its 1-Wire® output allows easy connection to your projects. It operates between 3 volts and 5.5 volts and provides accurate temperature values. All this is housed in a small 8-SOIC package.

DS18S20ZTR

The ADT7420UCPZ-RL7 is the next model; known for being highly accurate and stable, which makes it suitable for harsh industrial challenges.

ADT7420UCPZ-RL7

Finally, the MAX1617AMEE's accuracy is consistent, making it ideal for critical systems that require reliable temperature values.

MAX1617AMEE

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