AD7817SR

Resolution:	9 b
Base Part Number:	AD7817
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 125°C
Test Condition:	25°C (-40°C ~ 85°C)
Accuracy - Highest (Lowest):	±2.25°C (±6°C)
Features:	Output Switch
Series:	--
Voltage - Supply:	2.7 V ~ 5.5 V
Output Type:	SPI
Sensing Temperature - Remote:	--
Sensing Temperature - Local:	-40°C ~ 85°C
Sensor Type:	Digital, Local
Part Status:	Obsolete
Packaging:	Tube

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Temperature Sensors - Analog and Digital Output: AD7817SR application field and working principleTemperature sensors are among the most commonly used sensors in embedded systems. They can detect temperature changes and provide a record of temperature that can be used for various applications. The AD7817SR is a temperature sensor that is capable of outputting analog and digital signals. It is a high-accuracy and low-power device designed to measure temperature in thermal control systems. This article will discuss the application field and working principle of the AD7817SR temperature sensor.The AD7817SR temperature sensor is designed for use in a wide range of applications. It is suitable for use in medical, automotive, and industrial applications, as well as in consumer electronics. The temperature sensor can be used for monitoring, controlling, and tracking temperature. It is also suitable for use in demanding environments, such as in high-temperature measurement, harsh environments, or in extreme conditions.In terms of its working principle, the AD7817SR temperature sensor utilizes a thermistor as its sensing element. A thermistor is a temperature-dependent resistor whose resistance changes with different temperature levels. The thermistor is connected to the AD7817SR, which measures the changes in the thermistor’s resistance and converts the analog signals into equivalent temperatures. The resulting temperature value is then output as an analog or digital signal.The AD7817SR can measure temperatures in the range of -55°C to +125°C. It has an accuracy of ±0.2°C at 25°C, and an accuracy of ±2°C for temperatures from -55°C to +125°C. The resolution of the device is set to 0.25°C per bit with a maximum resolution of 0.1°C. The AD7817SR also features an extended measurement range of -40°C to +85°C and an increased resolution of 0.1°C per bit which further improves accuracy.The AD7817SR features several protection circuits that make it suitable for use in harsh environments and provide a degree of protection against external interference. These circuits protect the device against input voltage surges, which can damage the thermistor and affect the accuracy of the measurements. The device also features an over-temperature circuit that can protect the thermistor from damage in extreme temperature environments. In conclusion, the AD7817SR temperature sensor is a high-accuracy and low-power device designed for use in a wide range of applications. It utilizes a thermistor as its sensing element, which is connected to the AD7817SR to measure temperature. The device can output both analog and digital signals and has a temperature range of -55°C to +125°C with an accuracy of ±0.2°C at 25°C. The device also features protection circuits that can protect the thermistor from damage in extreme temperature environments.

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