AD7873ARQ Touch Screen Digitizer

The AD7873ARQ is a state-of-the-art touch screen digitizer from Analog Devices Inc., a leading global manufacturer known for its high-performance analog, mixed-signal, and digital signal processing integrated circuits. This precision component is designed to interface directly with 4-wire resistive touch screens, providing a complete touch screen control system in a single package.

Key Features:

• 12-bit SAR ADC: The device incorporates a high-quality successive approximation register analog-to-digital converter, ensuring accurate touch location measurements with a resolution of 12 bits.
• On-Chip Temperature Measurement: It also features an on-chip temperature sensor, allowing devices to monitor the temperature of the touch screen or the surrounding environment.
• Battery Voltage Measurement: The AD7873ARQ can measure battery voltage through an auxiliary analog input, which helps in monitoring the health and charge level of the power source.
• Touch Pressure Measurement: This functionality enables the detection of the amount of pressure applied by the user, enhancing the touch interface's capabilities.
• Serial Interface: The device uses a serial interface compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards, ensuring easy integration with a wide range of processors.
• Low Power Consumption: Designed for power-sensitive applications, the AD7873ARQ operates with low power consumption, making it ideal for portable devices.

Applications:

The AD7873ARQ is a versatile component suitable for an array of applications, including:

• Personal Digital Assistants (PDAs)
• Smartphones and Tablet PCs
• Portable Instrumentation
• Point-of-Sale Terminals
• Vehicle Navigation Systems

Product Specifications:

The AD7873ARQ is offered in a 16-lead TSSOP package, ensuring a compact footprint for space-constrained applications. It operates over a temperature range of -40°C to +85°C, providing reliable performance in various environments.

For detailed technical specifications, application notes, and support resources, customers are encouraged to visit the official Analog Devices Inc. website or contact their local sales representative.