Overview
The AD7873ARQZ-REEL7 is a precision touch screen controller designed by Analog Devices Inc. for 4-wire resistive touchscreens. This component provides accurate measurement and touch pressure detection, making it ideal for various applications requiring high-resolution touchscreen interaction. The AD7873 operates from a single supply voltage range of 2.2 V to 5.25 V and features a synchronous serial interface, on-board temperature measurement, and low power consumption, making it suitable for battery-powered and industrial devices.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Supply Voltage Range | 2.2 V to 5.25 V |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | 16-Lead QSOP, TSSOP, LFCSP |
| Throughput Rate | 125 kSPS |
| Serial Interface | Synchronous serial interface |
| Reference Voltage | On-board 2.5 V reference |
| Shutdown Current | Less than 1 µA |
Key Features
- High resolution for fine touchscreen interaction
- Touch pressure measurement capability
- On-board temperature measurement
- Single-ended or differential input capability
- Low power consumption with shutdown mode
- Internal and external reference voltage options
- Compatibility with various types of 4-wire resistive touchscreens
- Ease of integration with microcontrollers via serial port
Applications
- Point-of-sale terminals
- Personal digital assistants
- Portable instrumentation
- Vehicle navigation systems
- Industrial controls
- Smart hand-held devices
- Touch screen monitors
- Pagers
Q & A
- What is the resolution of the AD7873ARQZ-REEL7? The AD7873ARQZ-REEL7 has a 12-bit resolution.
- What is the supply voltage range for the AD7873ARQZ-REEL7? The supply voltage range is from 2.2 V to 5.25 V.
- What types of touchscreens is the AD7873ARQZ-REEL7 compatible with? It is compatible with various types of 4-wire resistive touchscreens.
- What is the operating temperature range of the AD7873ARQZ-REEL7? The operating temperature range is from -40°C to 85°C.
- Does the AD7873ARQZ-REEL7 have on-board temperature measurement capability? Yes, it has on-board temperature measurement capability.
- What is the throughput rate of the AD7873ARQZ-REEL7? The throughput rate is 125 kSPS.
- How does the AD7873ARQZ-REEL7 conserve power? It has a shutdown mode that reduces current consumption to less than 1 µA.
- What package types are available for the AD7873ARQZ-REEL7? It is available in 16-Lead QSOP, TSSOP, and LFCSP packages.
- Does the AD7873ARQZ-REEL7 support external reference voltage? Yes, it supports both internal and external reference voltage options.
- What are some common applications of the AD7873ARQZ-REEL7? Common applications include point-of-sale terminals, personal digital assistants, portable instrumentation, and industrial controls.
