The AD7747ARUZ-REEL is a high-precision, capacitance-to-digital converter (CDC) chip offered by Analog Devices Inc., a leader in high-performance analog technology. This component specializes in converting capacitive input signals into a digital output with a high degree of accuracy and resolution. It is particularly well-suited for applications requiring precise measurement of capacitive sensors, such as in industrial, medical, and automotive systems.

Key Features

• 24-Bit Resolution: The AD7747 features a 24-bit Σ-Δ analog-to-digital converter, ensuring high-resolution measurements for demanding applications.
• Single-Channel Capacitive Input: It is designed to interface directly with a single capacitive sensor, simplifying the design and reducing the need for additional components.
• Automatic Compensation: The device includes automatic compensation for changes in temperature, ensuring stable performance across a wide range of operating conditions.
• Programmable Gain Amplifier (PGA): The on-chip PGA provides selectable gain settings, allowing for optimization of the dynamic range for different sensor capacitances.

Applications

• Industrial process control
• Position and motion sensing
• Liquid level sensing
• Material property analysis
• Pressure sensing

Technical Specifications

Parameter Value Resolution 24-Bit Input Type Capacitive Interface I2C Supply Voltage 2.7V to 5.25V Package TSSOP-16 Operating Temperature -40°C to +125°C

Ordering Information

The product is available in a tape and reel format under the part number AD7747ARUZ-REEL, facilitating efficient handling and placement during the manufacturing process. The device is packaged in a TSSOP-16 package, which is suitable for space-constrained applications.