Overview
The ADS7843E/2K5G4 is a touch screen controller manufactured by Texas Instruments, designed for resistive touch screen applications. This component is widely used in embedded systems, consumer electronics, and industrial control interfaces. Its market positioning targets developers and engineers seeking reliable and efficient touch screen control solutions. The ADS7843E/2K5G4 stands out for its low power consumption, high accuracy, and compact SSOP-16 package, making it a competitive choice in the touch screen controller market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Product Category | Touch Screen Controller | - | - |
| Input Type | 1 TSC | - | - |
| Sampling Rate | 125 | kS/s | - |
| Resolution | 8-bit, 12-bit | - | - |
| Interface Type | 4-Wire, Serial | - | - |
| Supply Voltage | 2.7 to 5 | V | - |
| Operating Current | 80 | µA | - |
| Operating Temperature | -40 to +85 | °C | - |
| Package | SSOP-16 | - | - |
Key Features
- Supports resistive touch screen interfaces with high accuracy and low power consumption.
- Integrates a 12-bit analog-to-digital converter (ADC) for precise touch position detection.
- Offers a 4-wire serial interface for easy integration with microcontrollers and other embedded systems.
- Operates at a wide supply voltage range (2.7V to 5V), making it suitable for battery-powered applications.
- Compact SSOP-16 package ensures space-efficient designs.
Applications
The ADS7843E/2K5G4 is ideal for a variety of applications, including:
- Consumer Electronics: Used in portable devices such as smartphones, tablets, and handheld gaming consoles for touch screen control.
- Industrial Automation: Integrated into human-machine interfaces (HMIs) for machinery control and monitoring.
- Medical Devices: Employed in medical equipment with touch screen interfaces for user-friendly operation.
- Automotive Electronics: Utilized in car infotainment systems and navigation displays for intuitive user interaction.
Q & A
1. What is the primary function of the ADS7843E/2K5G4?
The ADS7843E/2K5G4 is a touch screen controller designed to interface with resistive touch screens, providing accurate touch position detection.
2. What is the resolution of the ADC in this component?
The ADC supports both 8-bit and 12-bit resolution, offering flexibility for different application requirements.
3. What is the operating voltage range of the ADS7843E/2K5G4?
It operates within a supply voltage range of 2.7V to 5V, making it suitable for low-power and battery-powered devices.
4. What type of interface does this component use?
It uses a 4-wire serial interface for communication with microcontrollers or other embedded systems.
5. What is the sampling rate of the ADS7843E/2K5G4?
The sampling rate is 125 kS/s, ensuring fast and responsive touch detection.
6. What is the package type of this component?
It comes in an SSOP-16 package, which is compact and suitable for space-constrained designs.
7. What is the operating temperature range?
The operating temperature range is -40°C to +85°C, making it suitable for harsh environments.
8. Is the ADS7843E/2K5G4 RoHS compliant?
Yes, it is RoHS compliant, ensuring it meets environmental and safety standards.
9. What are the typical applications of this component?
Typical applications include consumer electronics, industrial automation, medical devices, and automotive electronics.
10. How does this component handle power consumption?
It features low power consumption, with an operating current of 80 µA, making it ideal for battery-powered devices.
