Texas Instruments

ADS7846NG4

ADS7846NG4 Description

The ADS7846NG4 is a high-performance touch screen controller designed by Texas Instruments to provide precise and reliable control for 4-wire resistive touchscreens. This device is housed in a 16-TSSOP package, making it suitable for surface mount applications. It operates within a supply voltage range of 2.2V to 5.25V and consumes a supply current of only 500 µA, ensuring efficient power usage. The ADS7846NG4 is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It features an external and internal voltage reference, offering flexibility in system design. With a resolution of 12 bits and an SPI interface, this controller provides detailed and accurate touch data. The ADS7846NG4 is classified under ECCN EAR99 and HTSUS 8542.39.0001, making it suitable for a wide range of international applications. Its moisture sensitivity level is MSL 2 (1 Year), ensuring durability and reliability in various environmental conditions.

ADS7846NG4 Features

The ADS7846NG4 offers several unique features that set it apart from other touch screen controllers:

• High Resolution: With a 12-bit resolution, the ADS7846NG4 provides precise touch detection, ensuring accurate user input.
• Low Power Consumption: Operating at a supply current of 500 µA, this controller is ideal for battery-operated devices and systems where power efficiency is crucial.
• Flexible Voltage Options: The ability to operate within a wide voltage range (2.2V to 5.25V) makes it compatible with various power supplies, enhancing its versatility.
• SPI Interface: The SPI interface allows for easy integration with microcontrollers and other system components, simplifying design and implementation.
• Dual Voltage Reference: The option for both external and internal voltage references provides flexibility in system design, catering to different application requirements.
• Compliance and Safety: Being REACH unaffected and RoHS3 compliant, the ADS7846NG4 meets international standards for environmental and safety regulations, ensuring its suitability for global markets.
• Durability: With a moisture sensitivity level of MSL 2 (1 Year), the ADS7846NG4 is designed to withstand various environmental conditions, ensuring long-term reliability.

ADS7846NG4 Applications

The ADS7846NG4 is ideal for a variety of applications requiring precise touch screen control:

• Consumer Electronics: Ideal for smartphones, tablets, and other portable devices where accurate touch input is essential.
• Industrial Control Panels: Suitable for control panels and interfaces in industrial environments, providing reliable touch functionality.
• Medical Devices: Applicable in medical equipment with touch screen interfaces, ensuring accurate and responsive user interaction.
• Automotive Systems: Can be used in automotive infotainment systems, providing precise control and high reliability.
• Point of Sale (POS) Systems: Enhances user experience in POS terminals by providing accurate and responsive touch screen control.

Conclusion of ADS7846NG4

The ADS7846NG4 is a robust and versatile touch screen controller designed to meet the demands of modern touch screen applications. Its high resolution, low power consumption, and flexible voltage options make it an ideal choice for a wide range of devices. The inclusion of both external and internal voltage references, along with its compliance with international standards, ensures that it can be seamlessly integrated into various systems. Whether used in consumer electronics, industrial control panels, or medical devices, the ADS7846NG4 provides reliable and precise touch screen control, enhancing user experience and system performance.