Product Overview: AD7873BRQZ-REEL

The AD7873BRQZ-REEL is a sophisticated touch screen digitizer that is part of the esteemed product line from Analog Devices Inc. This precision component is designed to interface with 4-wire resistive touch screens, delivering high-quality performance in a variety of applications, including personal digital assistants (PDAs), smart handheld devices, and point-of-sale terminals.

Key Features

• 12-Bit SAR ADC: The AD7873BRQZ-REEL incorporates a 12-bit successive approximation register analog-to-digital converter (SAR ADC) ensuring precise touch location measurements.
• On-Chip Temperature Measurement: It includes an on-chip temperature sensor, which can be used for temperature compensation or to monitor the environment of the application.
• Touch Pressure Measurement: The device can measure touch pressure, which allows for additional functionality such as detecting the level of force applied to the touch screen.
• Serial Interface: Communication with microprocessors is straightforward thanks to a serial interface compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards.
• Low Power Consumption: Designed for power-sensitive applications, the AD7873 operates in a low power mode, making it ideal for battery-operated devices.
• Automatic Power-Down: The component features an automatic power-down function that reduces power consumption between conversions, contributing to the overall efficiency of the device it's embedded in.

Product Specifications

The AD7873BRQZ-REEL operates over a wide voltage range of 2.2V to 5.25V, making it versatile for different power environments. It is available in a compact 16-lead QSOP package, with the REEL suffix indicating that it is provided in tape and reel packaging suitable for automated assembly processes.

Applications

• Mobile Phones
• Personal Digital Assistants (PDAs)
• Point-of-Sale Terminals
• Portable Instrumentation
• GPS Navigation Systems
• Computer Touch Screens

The AD7873BRQZ-REEL from Analog Devices Inc. is an integral component for designers who require a reliable and precise touch screen interface solution. Its combination of features and specifications make it an excellent choice for a wide array of touch-based applications.