Analog Devices Inc. AD7843ARQ-REEL Touch Screen Digitizer

The AD7843ARQ-REEL, manufactured by Analog Devices Inc., is a state-of-the-art touch screen digitizer that provides high precision and reliability for a wide range of interactive applications. This integrated circuit is designed to accurately convert the analog touch inputs from resistive touch screen panels into digital form, enabling advanced user interfaces in various electronic devices.

Key Features:

• 4-Wire Touch Screen Interface: The AD7843ARQ-REEL is compatible with 4-wire resistive touch screens, which are commonly used in many consumer electronics due to their cost-effectiveness and durability.
• 12-Bit Resolution: With its 12-bit resolution, the digitizer ensures fine granularity in touch detection, providing precise control and a smooth user experience.
• Serial Interface: The device features a serial interface that is compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards, allowing for easy integration with a variety of microprocessors and microcontrollers.
• On-Chip Reference: An internal 2.5 V reference voltage source is included, reducing the need for external components and simplifying the overall design.
• Single Supply Operation: The AD7843ARQ-REEL operates on a single 2.2 V to 5.25 V power supply, accommodating a wide range of power environments and system requirements.
• Low Power Consumption: This digitizer is designed for low power consumption, making it ideal for battery-powered devices such as portable media players, smartphones, and handheld gaming systems.
• Surface Mount Package: The device comes in a 16-lead QSOP (Quarter Size Outline Package), which is suitable for space-constrained applications.

Applications:

The AD7843ARQ-REEL is versatile and can be used in a variety of applications, including:

• Personal Digital Assistants (PDAs)
• Smartphones and Tablets
• GPS Navigation Systems
• Point of Sale (POS) Terminals
• Industrial Controls
• Medical Equipment

Analog Devices Inc. is known for its high-performance signal processing solutions, and the AD7843ARQ-REEL is no exception. Its robust design and advanced features make it an excellent choice for developers looking to create intuitive and responsive touch interfaces for their products.