AD7843ARQZ-REEL Touch Screen Digitizer

The AD7843ARQZ-REEL, manufactured by Analog Devices Inc., is a state-of-the-art 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) tailored for touch screen applications. This precision touch screen controller is a key component in translating user interactions from resistive touch screens into digital signals that can be processed by electronic devices.

Key Features:

• High Resolution: Offers 12-bit resolution, ensuring high precision for touch screen coordinates detection.
• Single Supply Operation: Designed to operate from a single 2.2 V to 5.25 V power supply, making it versatile for various touch screen applications.
• Low Power Consumption: Features a power-down mode, reducing power consumption when the touch screen is not in use, which is ideal for battery-powered devices.
• On-Chip Temperature Measurement: Comes with an integrated temperature sensor, providing additional functionality for monitoring the device's environment.
• Serial Interface: Equipped with a serial interface compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards, ensuring easy integration with most microprocessors or microcontrollers.
• Accuracy: Delivers accurate touch screen positioning with its built-in 2.5 V reference and on-chip driver.

Applications:

The AD7843ARQZ-REEL is ideal for a myriad of touch screen applications, including but not limited to:

• Personal digital assistants (PDAs)
• Smartphones
• Point-of-sale (POS) terminals
• Portable instruments
• Vehicle navigation systems

Package and Availability:

This product is available in a compact 16-lead QSOP (Quarter Size Outline Package) and is part of the "REEL" packaging series, indicating it is provided in tape and reel form suitable for automated assembly processes. The AD7843ARQZ-REEL is designed for robust performance and is a reliable solution for integrating touch screen functionality into modern electronic devices.