AD7879WARUZ-RL7 Touch Screen Digitizer

The AD7879WARUZ-RL7 is a sophisticated touch screen controller solution from Analog Devices Inc., designed to interface with 4-wire resistive touch screens. This highly integrated component is part of the renowned AD7879 series, known for its precision and reliability in touch screen applications. The device is packaged in a compact TSSOP-16 package, making it suitable for space-constrained applications.

Key Features

• High Resolution: The AD7879WARUZ-RL7 offers 12-bit resolution, providing fine granularity for touch detection, ensuring high accuracy and a smooth user experience.
• Low Power Consumption: Designed for power-sensitive applications, it features a low operating power mode and a deep sleep mode for additional power savings, making it ideal for portable devices.
• On-Chip Temperature Measurement: It includes an on-board temperature sensor that allows for temperature monitoring and compensation, enhancing performance across varying environmental conditions.
• Multiple Communication Interfaces: The device supports I2C, SPI, and serial interface options, providing flexibility for system designers to integrate the controller with a variety of microprocessors or microcontrollers.
• Touch Pressure Measurement: The component is capable of measuring touch pressure, which can be used for additional input methods or enhanced user interactions.
• Automatic Conversion Timing: The built-in automatic conversion timing feature simplifies the design process by managing touch screen scanning timing, reducing the load on the host processor.

Applications

The AD7879WARUZ-RL7 is versatile and can be used in a wide range of applications including:

• Smart handheld devices
• Personal digital assistants (PDAs)
• Point-of-sale terminals
• Portable instrumentation
• Vehicle navigation systems

Reliability and Support

Analog Devices Inc. is known for its commitment to quality and reliability. The AD7879WARUZ-RL7 is built to meet the high standards of performance and longevity that customers expect from Analog Devices. Technical support and comprehensive documentation are available to assist with the integration and application of this touch screen controller.