XTR115U/2K5G4

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The XTR115U/2K5G4 is an advanced series of high performance low power precision capacitance-to-digital sensors from Analog Devices. This small form factor design is ideally suited for a variety of industrial, medical, and automotive applications. The sensor offers a high level of accuracy in measuring gap or change in capacitance with a resolution of 5ppm.

The XTR115U/2K5G4 is designed for use in direct contact sensing applications; this device is suitable for almost any capacitance measurement need. The XTR115U/2K5G4 incorporates on-chip signal amplification, filtering, and signal to digital conversion to provide an output code that is proportional to the measured capacitance. The low output impedance allows the device to drive loads directly with no additional components.

The XTR115U/2K5G4 is a three-term current source sensor that simplifies board layout and reduces power requirements. It has an adaptive low frequency cut-off built in to reject small change in capacitance, which makes it suitable for harsh industrial environments. The XTR115U/2K5G4 also features a temperature compensation system that corrects for bias settling errors due to thermal drift. The device can operate over a wide range of temperatures from -40°C to +125°C, allowing it to be used in rugged applications in extreme temperatures.

The XTR115U/2K5G4 is a suitable choice for applications such as measuring dielectric properties of materials in the research or medical fields, detecting objects in air or liquids in industrial or automotive applications, and for proximity sensing in medical and medical test systems. It is well suited for applications that require a small form factor, low power, and high accuracy combined with wide temperature range of operation.

The working principle of XTR115U/2K5G4 is based on a three-term current source capacitance-to-digital conversion technique. The device uses a capacitor as a measure of the capacitance being measured and an internal adjustable current source to charge the capacitor. This setup allows the capacitance to be monitored in real time. The device then converts the measured signal into a digital 16-bit data word which represents the gap or change in capacitance. The digital output of the sensor is proportional to the change in capacitance of the capacitor. The XTR115U/2K5G4 also features an on-board temperature compensation system. This system is used to correct for any bias settling errors due to thermal drift, ensuring the highest level of accuracy and repeatability.

Overall, the XTR115U/2K5G4 is an ideal choice for applications that require a small form factor, low power, and high accuracy combined with wide temperature range of operation. This device offers a high level of accuracy in measuring gap or change in capacitance with a resolution of 5ppm. The low output impedance allows the device to drive loads directly with no additional components, making it a great choice for direct contact sensing applications. Additionally, the on-board temperature compensation system ensures that the device works accurately and reliably even in extreme temperatures and harsh industrial environments.

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