MAX6670AUB70+

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Temperature sensors are widely available and come in many different designs. Solid-state temperature sensors are an important class of temperature sensors because they have the capacity to measure environmental temperatures accurately over a range of different applications. The MAX6670AUB70+ is a temperature sensor that is commonly used when accuracy and reliability are needed. This paper outlines the application field and working principle of the MAX6670AUB70+.

Application Field

The MAX6670AUB70+ is a digital thermostat which is used to measure temperatures between -55°C and +125°C with a 0.2°C resolution. It can detect high or lowtemperature conditions, and can even be programmed to react to temperature signals from other devices. It can detect temperature in either Celsius or Fahrenheit. This device is ideal for a variety of applications such as HVAC and industrial applications, automotive engine control systems, and consumer electronics. It can also be used to measure the temperature of medical devices such as thermometers and catheters.

Working Principle

The MAX6670AUB70+ is a solid-state temperature sensor that works by measuring the resistance of a thermistor. The thermistor is a resistor which changes its resistance in relation to the surrounding temperature. The MAX6670AUB70+ measures the thermistor’s resistance, which is then converted into a temperature value, which is then sent to the processor for reading. The MAX6670AUB70+ also includes an on-chip register which stores the user-programmed limits and output type.

The MAX6670AUB70+ also has a built-in programmable hysteresis. Hysteresis is a process of the system output remaining the same until the input crosses a certain threshold. This is useful in maintaining stability of the temperature read by the device, and avoiding large fluctuations in temperature which can be damaging to applications. The device also has programmable trip points that can be set to maintain the desired temperature.

Other Features

The MAX6670AUB70+ also has several additional features which make it well-suited for various applications. It has onboard voltage regulator, allowing the device to be used in a variety of different voltage levels. The device also has an on-board thermistor calibration voltage, which is used to adjust the sensitivity of the thermistor for different ranges. It also has an input for an external temperature probe, which can be used to measure temperatures in difficult-to-reach places. Finally, the device has onboard over-temperature protection, preventing it from being damaged by excessive temperatures.

Conclusion

The MAX6670AUB70+ is a solid-state temperature sensor that is ideal for a variety of applications. It can measure temperatures accurately and reliably over a range of -55°C to +125°C with a 0.2°C resolution. It also has programmable hysteresis and trip points, as well as an onboard voltage regulator and thermistor calibration voltage. Additionally, it can be used with an external temperature probe for difficult-to-reach locations and has onboard over-temperature protection. As a result, the MAX6670AUB70+ is a reliable, accurate, and versatile temperature sensor ideal for many applications.

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