ADS7843E/2K5
16-pin SSOP touch screen controllers for resistive 4-wire interfaces
Manufacturer： ['rochester', 'analog-devices', 'ti']
series introduction
# Introduction to the ADS7843E/2K5 Product Series
## 1. Overview
The ADS7843E/2K5 is a highly versatile and widely - used product series in the field of analog - to - digital conversion. It belongs to the family of touch - screen controller and analog - to - digital converters (ADCs), which are essential components in many modern electronic systems. These devices are designed to provide accurate and efficient conversion of analog signals into digital data, enabling seamless integration with microcontrollers and other digital processing units.
## 2. Key Features
### 2.1 High - Resolution ADC
The ADS7843E/2K5 features a 12 - bit successive - approximation ADC. This high resolution allows for precise measurement of analog input signals, with a resolution of up to 1 part in 4096 (2^12). It can accurately capture small changes in the input voltage, making it suitable for applications that require high - precision data acquisition, such as industrial control systems, medical devices, and high - end consumer electronics.
### 2.2 Low - Power Consumption
In today's energy - conscious world, power efficiency is a crucial factor. The ADS7843E/2K5 is designed with low - power operation in mind. It has a low standby current, which helps to extend the battery life of portable devices. This makes it an ideal choice for battery - powered applications like tablets, smartphones, and handheld measurement instruments.
### 2.3 Touch - Screen Interface
One of the standout features of the ADS7843E/2K5 is its built - in touch - screen interface. It can directly interface with resistive touch screens, providing accurate X and Y coordinate measurements. This feature is widely used in touch - enabled devices, allowing users to interact with the device by simply touching the screen. The device can quickly and accurately detect the position of the touch, enabling smooth and responsive touch - screen operation.
### 2.4 Serial Interface
The ADS7843E/2K5 is equipped with a serial interface, typically a Serial Peripheral Interface (SPI). This interface simplifies the connection between the ADC and the microcontroller or other digital devices. The SPI interface allows for high - speed data transfer, enabling real - time data acquisition and processing. It also reduces the number of pins required for communication, saving board space and simplifying the overall system design.
### 2.5 Wide Input Voltage Range
The device supports a wide input voltage range, which provides flexibility in different applications. It can handle input voltages from 0V to the reference voltage, allowing it to measure a variety of analog signals. This wide input range makes it suitable for applications where the input signals can vary significantly, such as sensor interfaces and power supply monitoring.
## 3. Applications
### 3.1 Consumer Electronics
In consumer electronics, the ADS7843E/2K5 is commonly used in touch - screen devices such as tablets, smartphones, and digital cameras. Its high - resolution ADC and touch - screen interface enable accurate touch detection and smooth user interaction. For example, in a tablet, it can precisely detect the position of a finger touch, allowing for intuitive navigation and gesture recognition.
### 3.2 Industrial Control Systems
Industrial control systems often require accurate measurement of analog signals from sensors, such as temperature, pressure, and flow sensors. The ADS7843E/2K5's high - resolution ADC and wide input voltage range make it suitable for these applications. It can convert the analog sensor signals into digital data, which can then be processed by a microcontroller or a Programmable Logic Controller (PLC) for control and monitoring purposes.
### 3.3 Medical Devices
Medical devices demand high - precision data acquisition for accurate diagnosis and
Images for reference
16-SSOP
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