The ADS7846I is a precision Touch Screen Controller from Texas Instruments, designed to operate with lower power consumption and a wide input voltage range, making it ideal for battery-operated portable applications. This controller is part of the ADS7846 family, known for their reliability and ease of integration into touch screen solutions.
Key Features
- High Precision: The ADS7846I provides 12-bit resolution which ensures accurate touch location tracking and a high degree of precision for the end-user's touch inputs.
- Low Power Consumption: It is designed for power-sensitive applications, with a typical operating current of just 150µA, which is crucial for extending the battery life of portable devices.
- Flexible Voltage Range: The device operates at a 2.2V to 5.25V range, accommodating various power supplies and system designs.
- On-Chip Temperature Measurement: With the ADS7846I, there's no need for additional temperature sensors as it includes an on-chip temperature sensor that can aid in environment monitoring or system diagnostics.
- Multiple Interface Options: The controller supports a serial interface compatible with SPI, QSPI, and MICROWIRE protocols, providing versatility in system design and ease of integration with a variety of microprocessors and microcontrollers.
Applications
The ADS7846I is widely used in a range of applications due to its precision and low power consumption. These include:
- Personal Digital Assistants (PDAs)
- Smartphones
- GPS Navigation Systems
- Portable Instruments
- Point-of-Sale Machines
Package and Quality
The ADS7846I is available in a small, lead-free, space-saving TSSOP-16 package, which is ideal for compact device designs. Texas Instruments ensures high-quality standards, and the ADS7846I is no exception, providing reliable performance for critical touch-based interactions.
