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AD7873 - Touch Screen Digitizer

Description

The AD7873 is a 12-bit successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens.

The AD7873 operates from a single 2.2 V to 5.25 V supply, with a throughput rate of 125 kSPS.

Features

  • 4-wire touch screen interface On-chip temperature sensor:.
  • 40°C to +85°C On-chip 2.5 V reference Direct battery measurement (0 V to 6 V) Touch pressure measurement Specified throughput rate of 125 kSPS Single supply, VCC of 2.2 V to 5.25 V Ratiometric conversion High speed serial interface Programmable 8-bit or 12-bit resolution One auxiliary analog input Shutdown mode: 1 µA maximum 16-lead QSOP, TSSOP, and LFCSP packages.

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Datasheet Details

Part number AD7873
Manufacturer Analog Devices
File Size 422.79 KB
Description Touch Screen Digitizer
Datasheet download datasheet AD7873 Datasheet
Additional preview pages of the AD7873 datasheet.

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Full PDF Text Transcription

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Data Sheet FEATURES 4-wire touch screen interface On-chip temperature sensor: −40°C to +85°C On-chip 2.5 V reference Direct battery measurement (0 V to 6 V) Touch pressure measurement Specified throughput rate of 125 kSPS Single supply, VCC of 2.2 V to 5.25 V Ratiometric conversion High speed serial interface Programmable 8-bit or 12-bit resolution One auxiliary analog input Shutdown mode: 1 µA maximum 16-lead QSOP, TSSOP, and LFCSP packages APPLICATIONS Personal digital assistants Smart hand-held devices Touch screen monitors Point-of-sale terminals Pagers GENERAL DESCRIPTION The AD7873 is a 12-bit successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The AD7873 operates from a single 2.2 V to 5.
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