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AD7873 from AD,Analog Devices

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15.625ms

AD7873

Manufacturer: AD

Touch Screen Digitizer with Direct Battery and Touch-Pressure Measurement

Partnumber Manufacturer Quantity Availability
AD7873 AD 12774 In Stock

Description and Introduction

Touch Screen Digitizer with Direct Battery and Touch-Pressure Measurement The AD7873 is a 12-bit successive approximation analog-to-digital converter (ADC) with a synchronous serial interface and low on-resistance switches for driving touch screens. It is manufactured by Analog Devices (AD). Key specifications include:

- **Resolution**: 12 bits
- **Throughput Rate**: Up to 125 kSPS (kilo samples per second)
- **Input Channels**: 4 single-ended or 2 differential
- **Supply Voltage**: 2.2 V to 5.25 V
- **Power Consumption**: 0.72 mW at 3 V supply, 125 kSPS
- **Interface**: SPI-compatible serial interface
- **On-Chip Temperature Sensor**: Yes
- **On-Chip Reference**: 2.5 V reference
- **Operating Temperature Range**: -40°C to +85°C
- **Package**: 16-lead TSSOP (Thin Shrink Small Outline Package)

The AD7873 is designed for battery-powered systems such as personal digital assistants, portable instruments, and touch screen monitors. It integrates all the necessary functions for touch screen input, including a touch pressure measurement capability.

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