Texas Instruments

ADS7846N/2K5G4

ADS7846N/2K5G4 Description

The ADS7846N/2K5G4 is a high-performance data acquisition integrated circuit (IC) designed specifically for 4-wire resistive touchscreen applications. Manufactured by Texas Instruments, this IC offers a robust solution for capturing and processing touch input data with high precision and reliability. The ADS7846N/2K5G4 features a 12-bit resolution, ensuring accurate and detailed touch detection. It supports a wide supply voltage range of 2.2V to 5.25V, making it versatile for various power supply configurations. The IC operates with a low supply current of 500 µA, which is ideal for power-sensitive applications. It also includes both external and internal voltage reference options, providing flexibility in system design.

The ADS7846N/2K5G4 is packaged in a surface-mount 16TSSOP format, which is suitable for compact and space-efficient PCB layouts. The package is available in tape and reel (TR) format, facilitating automated assembly processes. This IC is compliant with REACH and ROHS3 standards, ensuring environmental and safety compliance. The moisture sensitivity level (MSL) is rated at 2 (1 year), making it suitable for a wide range of manufacturing environments.

ADS7846N/2K5G4 Features

• Touchscreen Type: 4-wire resistive, providing a cost-effective and widely used method for touch detection.
• Resolution: 12-bit, ensuring high precision in touch coordinate measurements.
• Supply Voltage: Wide range of 2.2V to 5.25V, offering compatibility with various power supply systems.
• Supply Current: Low power consumption at 500 µA, suitable for battery-operated and power-sensitive devices.
• Voltage Reference: Dual options of external and internal references, providing flexibility in system design.
• Interface: SPI (Serial Peripheral Interface), enabling efficient communication with microcontrollers and other digital systems.
• Package: 16TSSOP surface-mount package, ideal for compact and space-efficient PCB layouts.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring environmental and safety standards are met.
• Moisture Sensitivity Level: MSL 2 (1 Year), suitable for a variety of manufacturing environments.

ADS7846N/2K5G4 Applications

The ADS7846N/2K5G4 is ideal for a range of applications requiring reliable and precise touch input detection. Its high resolution and low power consumption make it particularly suitable for portable and handheld devices, such as:

• Smartphones and Tablets: Providing accurate touch detection for user interfaces.
• Industrial Control Panels: Offering robust and reliable touch input for control systems.
• Medical Devices: Ensuring precise touch control for medical equipment interfaces.
• Consumer Electronics: Enhancing user experience in devices like e-readers and digital cameras.
• Automotive Infotainment Systems: Providing reliable touch input for in-vehicle entertainment and control systems.

Conclusion of ADS7846N/2K5G4

The ADS7846N/2K5G4 from Texas Instruments stands out as a high-performance data acquisition IC tailored for 4-wire resistive touchscreen applications. Its 12-bit resolution, wide supply voltage range, and low power consumption make it a versatile and efficient solution for various touch-sensitive devices. The inclusion of both external and internal voltage reference options, along with its SPI interface, further enhances its flexibility and compatibility with different system designs. The ADS7846N/2K5G4's compliance with environmental and safety standards, combined with its surface-mount packaging, makes it an ideal choice for modern, compact, and environmentally conscious electronic designs. Whether in consumer electronics, industrial controls, or automotive systems, the ADS7846N/2K5G4 delivers reliable and precise touch detection, ensuring a seamless user experience.