AD7873ARQZ-REEL7 Touch Screen Digitizer

The AD7873ARQZ-REEL7 is a high-performance touch screen digitizer produced by Analog Devices Inc., a leading global manufacturer of precision high-performance integrated circuits used in analog and digital signal processing applications. This component is designed to accurately translate touch inputs from resistive touch screens into digital data that can be processed by other devices in a system, such as microcontrollers or processors.

Key Features

• 4-Wire Touch Screen Interface: The AD7873ARQZ-REEL7 is compatible with 4-wire resistive touch screens, which are widely used in various consumer electronics due to their cost-effectiveness and reliability.
• 12-Bit SAR ADC: It incorporates a 12-bit Successive Approximation Register (SAR) Analog-to-Digital Converter, providing high-resolution touch coordinates.
• On-Chip Temperature Measurement: The device includes an on-chip temperature sensor, enabling temperature-compensated touch measurements and additional functionality for monitoring system health.
• Single-Ended or Differential Inputs: It offers flexibility by supporting both single-ended and differential input modes, enhancing performance in noisy environments.
• Low Power Consumption: Designed with power efficiency in mind, it features a low operating power mode and a power-down mode to conserve energy in battery-operated devices.
• Serial Interface: The digitizer uses a serial interface compatible with SPI, QSPI, and MICROWIRE protocols, allowing for easy integration with most microprocessors and microcontrollers.
• Extended Temperature Range: It operates over an extended temperature range, making it suitable for use in both commercial and industrial applications.

Applications

The AD7873ARQZ-REEL7 is ideal for a wide range of touch-input applications, such as:

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

Packaging and Quality

Delivered in a compact 16-lead QSOP package, the AD7873ARQZ-REEL7 is part of Analog Devices Inc.'s tape and reel packaging service, denoted by the suffix "-REEL7". This service aids in the automated assembly process, ensuring a steady supply of components for high-volume manufacturing needs. Analog Devices Inc. is known for its commitment to high-quality standards, and this product is no exception, offering reliable performance for touch-based interface applications.