ADI AD7843ARQZ-REEL

4 线电阻式12 b串行2.2V ~ 5.25V-40°C ~ 85°C

Overview

The AD7843ARQZ-REEL is a 12-bit successive-approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The part operates from a single 2.2 V to 5.25 V power supply and features throughput rates greater than 125 kSPS. The external reference applied to the AD7843ARQZ-REEL can be varied from 1 V to +VCC, while the analog input range is from 0 V to VREF. The device includes a shutdown mode that reduces the current consumption to less than 1 µA. This part is available in a 16-lead 0.15" Quarter Size Outline (QSOP) package and a 16-lead Thin Shrink Small Outline (TSSOP) package. 

Also see the AD7843ARQZ-REEL sister part, which is the AD7873. This part is similar to the AD7843ARQZ-REEL but has added functionality such as an on-chip temperature sensor (-40°C to + 85°C), on-chip 2.5 V reference and direct battery and touch-pressure measurement.

Features

Tape & Reel (TR) Package

Surface Mount Mounting Type

Applications

There are a lot of Analog Devices Inc.
AD7843ARQZ-REEL Touch Screen Controllers applications.

• Digital Multimeters, PLC's (Programming Logic Controllers)
• RADAR processing, digital oscilloscopes
• CMOS Image sensors for mobile applications
• Medical Instrumentation and medical imaging
• Music recording
• Digital signal processing
• Scientific instruments
• Rotary encoder
• Displaying
• Transducer