AD7747ARUZ Capacitance-to-Digital Converter

The AD7747ARUZ is a high-resolution, Σ-Δ capacitance-to-digital converter (CDC) from Analog Devices Inc. that offers a specialized solution for accurately measuring capacitance changes. This precision component is designed to interface directly with capacitive sensors, providing a digital representation of the sensor output with exceptional accuracy and stability.

Key Features:

• 24-Bit Resolution: The AD7747ARUZ boasts a 24-bit Σ-Δ ADC, ensuring high-resolution measurements, which is critical for sensing applications that demand precise data acquisition.
• Single-Ended or Differential Capacitance Input: It is capable of working with single-ended or differential capacitive sensors, offering flexibility in sensor design and application.
• Automatic Compensation: The onboard automatic compensation for changes in temperature and parasitic capacitance ensures stable readings over a wide range of environmental conditions.
• Low Power Consumption: Designed for energy-efficient operation, the AD7747ARUZ is suitable for battery-powered devices and portable applications.
• Programmable Output Data Rate: Users can configure the output data rate according to their specific application requirements, optimizing performance and power usage.
• I²C Compatible Serial Interface: The device features an I²C compatible serial interface, facilitating easy integration into digital systems and allowing for straightforward communication with microcontrollers and processors.
• On-Chip Temperature Sensor: The inclusion of an integrated temperature sensor allows for temperature monitoring and compensation, further enhancing measurement accuracy.

Applications:

• Industrial process control
• Automotive sensing systems
• Medical instrumentation
• Liquid level sensing
• Material property analysis
• Touchscreen interfaces

With its robust feature set, the AD7747ARUZ from Analog Devices Inc. is an ideal choice for engineers and designers looking for a reliable and precise capacitance measurement solution. Whether for industrial, automotive, or consumer applications, this CDC offers a high level of integration and performance to meet the demands of modern sensing technology.