The AD7873ACP-REEL7 is a high-performance touch screen digitizer from Analog Devices Inc., a renowned leader in the semiconductor industry. This precision component is designed to interface with 4-wire resistive touch screens, providing accurate and reliable touch sensing capabilities for a wide range of applications, from personal digital assistants (PDAs) and smart handheld devices to industrial controls and medical equipment.

Key Features

• 12-bit SAR ADC: The AD7873ACP-REEL7 features a 12-bit Successive Approximation Register Analog-to-Digital Converter (SAR ADC), ensuring high-resolution touch screen data conversion for precise user input detection.
• On-chip Temperature Measurement: It includes an integrated temperature sensor, allowing devices to monitor their internal temperature, which can be critical for maintaining optimal performance and protecting against overheating.
• Touch Pressure Measurement: The ability to measure touch pressure adds another dimension to user interaction, enabling applications to distinguish between a light touch and a firm press.
• Single-Ended or Differential Input: Flexibility in input configuration allows the AD7873ACP-REEL7 to accommodate various touch screen designs, either through single-ended or differential input signals.
• Serial Interface: It supports a serial interface compatible with SPI, QSPI, and MICROWIRE protocols, allowing for easy integration with a wide range of microprocessors and microcontrollers.
• Low Power Consumption: Designed for power-sensitive applications, the device features a low operating power mode and a power-down mode, contributing to extended battery life in portable devices.

Package and Availability

The AD7873ACP-REEL7 is available in a compact 16-lead, 0.3" wide TSSOP package, making it suitable for space-constrained applications. The 'REEL7' designation indicates that this product is provided in a 7-inch reel, facilitating efficient handling and manufacturing processes, especially for high-volume production requirements.

Applications

With its robust feature set, the AD7873ACP-REEL7 is an ideal solution for enhancing the user interface of various electronic devices. Its precision touch screen control is particularly suited for:

• Smartphones and Tablet PCs
• GPS Navigation Systems
• Portable Media Players
• Industrial Controls and Instrumentation
• Medical Monitoring Devices