Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Touchscreen | 4 Wire Resistive |
| Resolution(Bits) | 12 b |
| Interface | SPI |
| VoltageReference | External, Internal |
| Voltage-Supply | 2.2V ~ 5.25V |
| Current-Supply | 500 µA |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 16-SSOP (0.154, 3.90mm Width) |
Tổng quan
Description
The ADS7846E/2K5 is a touchscreen controller IC manufactured by Texas Instruments. It is designed to interface with 4-wire resistive touchscreens, providing efficient and accurate touch position detection. The device operates as a 12-bit analog-to-digital converter (ADC), which translates the analog signals from the touchscreen into digital data that can be processed by a microcontroller or other digital system.
Key features of the ADS7846E/2K5 include low power consumption, making it suitable for battery-powered devices, and a small form factor for easy integration into compact devices. It supports a wide range of input voltages and includes a programmable resolution for flexibility in different applications. The device also features an on-chip temperature sensor and a touch pressure measurement capability.
With its SPI interface, the ADS7846E/2K5 ensures easy communication with host processors. Its robust performance and versatility make it ideal for use in portable electronics, industrial controls, and various embedded applications requiring reliable touch input processing.
Key features of the ADS7846E/2K5 include low power consumption, making it suitable for battery-powered devices, and a small form factor for easy integration into compact devices. It supports a wide range of input voltages and includes a programmable resolution for flexibility in different applications. The device also features an on-chip temperature sensor and a touch pressure measurement capability.
With its SPI interface, the ADS7846E/2K5 ensures easy communication with host processors. Its robust performance and versatility make it ideal for use in portable electronics, industrial controls, and various embedded applications requiring reliable touch input processing.
Equivalent
The ADS7846E/2K5 is a touch screen controller. Equivalent products include:
1. TSC2046 from Texas Instruments – similar functionality and interface.
2. XPT2046 from XPTek – widely used drop-in replacement.
3. AR1021 from Microchip Technology – offers a similar interface but with some additional features.
4. STMPE811 from STMicroelectronics – provides similar touch screen control functions.
Always verify the pin configuration and features to ensure compatibility with your specific application.
1. TSC2046 from Texas Instruments – similar functionality and interface.
2. XPT2046 from XPTek – widely used drop-in replacement.
3. AR1021 from Microchip Technology – offers a similar interface but with some additional features.
4. STMPE811 from STMicroelectronics – provides similar touch screen control functions.
Always verify the pin configuration and features to ensure compatibility with your specific application.
Features
The ADS7846E/2K5 is a versatile 4-wire resistive touchscreen controller from Texas Instruments. It features a low voltage operation ranging from 2.2V to 5.25V, making it suitable for battery-powered applications. This device has a built-in 12-bit analog-to-digital converter (ADC) for precise touch position measurement. It supports a maximum sampling rate of 125 kHz, allowing for rapid data acquisition.
Key features include a direct interface to 4-wire touchscreens, low power consumption, and a high-speed serial interface compatible with SPI protocol. The ADS7846E/2K5 also incorporates a programmable resolution and reference voltage, enabling flexibility in various applications. It can perform touch pressure measurement and includes on-chip temperature sensors, which are useful for calibration and compensation purposes.
Additional functionalities include an automatic power down mode to conserve energy, touch pen interrupt generation for efficient system wake-up, and an internal reference voltage for improved accuracy. These features make the ADS7846E/2K5 suitable for portable devices, industrial control panels, and other touchscreen applications.
Key features include a direct interface to 4-wire touchscreens, low power consumption, and a high-speed serial interface compatible with SPI protocol. The ADS7846E/2K5 also incorporates a programmable resolution and reference voltage, enabling flexibility in various applications. It can perform touch pressure measurement and includes on-chip temperature sensors, which are useful for calibration and compensation purposes.
Additional functionalities include an automatic power down mode to conserve energy, touch pen interrupt generation for efficient system wake-up, and an internal reference voltage for improved accuracy. These features make the ADS7846E/2K5 suitable for portable devices, industrial control panels, and other touchscreen applications.
Pinout
The ADS7846E/2K5 is a 4-wire resistive touch screen controller from Texas Instruments. It has a 16-pin configuration. The primary function of the ADS7846E/2K5 is to interface with 4-wire resistive touch screens and provide precise, analog-to-digital conversion of touch coordinates. It has built-in features like a direct battery measurement, temperature measurement, and touch-pressure measurement capability. The device uses a serial interface, typically SPI, to communicate with a host processor, making it suitable for applications in portable devices, handheld electronics, and other touch-sensitive systems.
Manufacturer
The ADS7846E/2K5 is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and systems. TI is well-known for its extensive portfolio of analog and embedded processing products, including integrated circuits for various applications such as industrial, automotive, personal electronics, and communications equipment. TI's product offerings encompass analog chips, digital signal processors (DSPs), microcontrollers, and more, making it a key player in the electronics and semiconductor industry.
Application
The ADS7846E/2K5 is a touch screen controller commonly used in applications requiring analog-to-digital conversion for resistive touch panels. Key application areas include:
1. Consumer Electronics: Used in devices like smartphones, tablets, and portable media players for user interface control.
2. Industrial Control Panels: Employed in machinery and equipment for data input and control interfaces.
3. Automotive Systems: Integrated into infotainment systems and navigation displays for touch-based control.
4. Medical Devices: Utilized in diagnostic and monitoring equipment with touch screen interfaces.
5. Point-of-Sale (POS) Systems: Implemented in terminals for user input and transaction processing.
Its versatile and precise touch input capabilities make it suitable for various interactive display applications.
1. Consumer Electronics: Used in devices like smartphones, tablets, and portable media players for user interface control.
2. Industrial Control Panels: Employed in machinery and equipment for data input and control interfaces.
3. Automotive Systems: Integrated into infotainment systems and navigation displays for touch-based control.
4. Medical Devices: Utilized in diagnostic and monitoring equipment with touch screen interfaces.
5. Point-of-Sale (POS) Systems: Implemented in terminals for user input and transaction processing.
Its versatile and precise touch input capabilities make it suitable for various interactive display applications.
Package
The ADS7846E/2K5 is a touch screen controller IC from Texas Instruments. The package type for this model is a TSSOP-16 (Thin Shrink Small Outline Package with 16 pins). This package is compact and suitable for space-constrained applications.
