TMP235A4DCKR

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Temperature Sensors are devices used to measure temperature. The TMP235A4DCKR is an analog and digital output temperature sensor that can be used in a wide variety of applications. This article will discuss the application fields of the TMP235A4DCKR as well as its working principle.

Application Fields of the TMP235A4DCKR

The TMP035A4DCKR from Texas Instruments is used in diverse applications such as industrial process control, automotive engine control, HVAC, medical, lighting, refrigeration, and many other consumer applications. As an analog and digital output device, the device offers flexibility to the user. It offers both analog and digital outputs which represent the measured temperature with maximum accuracy of 0.5°C. The device has a supply voltage range of 1.8V to 5.5V and is stable across different temperature ranges. The device is also immune to radiated EMI and ESD.

The device comes in a 2x2.1mm TSSOP package and has a temperature range of -55°C to +150°C. This makes it suitable for applications that require precise temperature sensing over a wide range. The device also offers various features such as low power consumption, wide temperature range, long shelf life, low power shutdown mode, and a programmable accuracy.

Working Principle

The working principle of the TMP235A4DCKR is based on a thermal sensing element of a thermistor technology. The sensing element is embedded in the device and is connected to a precision amplifier. This amplifier is used to detect the temperature variation and accurately convert it to an analog output voltage. The amplifier also features temperature trimming which allows the device to compensate for temperature variations.

The analog output voltage from the device is then used as an input voltage for an analog to digital converter (ADC). The ADC is used to convert the analog voltage to a digital output code representing the measured temperature with a resolution of 8-bit. The resolution of the ADC is temperature dependent and can be programmed to provide up to 16 bits of resolution.

In addition to the analog to digital conversion, the TMP235A4DCKR also includes a digital temperature sensor register. This register is used to monitor and control the supply voltage for the device as well as to adjust the temperature accuracy of the device. The digital register can also be used to set the low power shutdown mode, the temperature range and threshold values of the device.

The TMP235A4DCKR is a highly accurate and versatile temperature sensor. It offers both analog and digital outputs with maximum precision and temperature variation compensation, making it suitable for a variety of applications. The device’s small size, low power consumption and wide temperature range make it an ideal choice for many applications requiring precise temperature sensing over a wide range.

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