TMP75BQDGKRQ1

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TMP75BQDGKRQ1 Application Field and Working Principle

The TMP75BQDGKRQ1 temperature sensoris designed for measuring temperatures of environments, semiconductor components, and devices in applications such as HVAC systems, automotive electronic systems, industrial and medical equipment and appliances. It is a two-wire interface device, providing both analog and digital output signals. Typical applications include temperature compensation, thermal shut-down, and alarm signal generation.

Working Principle

The TMP75BQDGKRQ1 is a two-terminal device, designed for converting the Temperature of environments into a proportional analog or digital voltage. The internal circuits of this temperature sensor consists of an on-board thermistor temperature sensing element as well as a two-state, precision analog to digital conversion ASIC. When used as an analog sensor, the TMP75BQDGKRQ1 presents a small resistance which varies linearly according to the temperature of the environment. This resistance is then converted into an AC voltage through a capacitor.

The TMP75BQDGKRQ1 also provides a digital output in the form of an I2C bus interface. This interface allows the temperature of the environment to be communicated to a micro-controller or other digital system. This interface includes a programmable register, which specifies the accuracy of the temperature readings, as well as the resolution of the analog output.

Conclusion

The TMP75BQDGKRQ1 is ideal for applications that require accurate analog or digital temperature measurements. Its two-wire interface offers the convenience of easy integration in existing systems while the two-state, precision analog to digital conversion ASIC provides reliable temperature detection with an excellent response time.

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