Datasheet > AR7643

AR7643

更新时间： 2024-11-18 08:34:19

品牌	Logo	应用领域
其他 - ETC		商用集成电路光电二极管控制器
页数	文件大小	规格书
3页	786K
描述
12-bit Touch Panel Controller IC

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AR7643 数据手册

The wireless communication solution provider

12-bit Touch Panel Controller IC

AR7643

FEATURES

Serial interface

4-wire touch panel interface

Embedded touch panel drivers

2.2 V to 5.5 V supply voltage

12-bit analog to digital converter

Programmable 8 or 12 bit resolution

Up to 125 KHZ conversion rate

2 auxiliary analog inputs

Full power down control

SSOP-16 package

APPLICATIONS

Personal digital assistants(PDAs)

Point of sales terminals

Pagers

High speed data acquisition

Portable instruments

Low power instruments

DESCRIPTION

The AR7643 Touch Panel Controller IC is a 12-bit SAR analog-to-digital (ADC)

converter with SPI serial interface and low on-resistance drivers for 4-wire

resistive touch panels.

The AR7643 is a highly integrated controller suitable for portable

applications which use 4-wire resistive touch panels such as, PDA,

portable instruments, cellular phone, etc. The AR7643 contains all the

analog and digital circuitry necessary to complete a pen request.

The AR7643 consumes only 648 mW at a 125 KHz sample rate and a

2.7 V supply and consumes only 2.7 mW in shutdown mode. The

AR7643 is guaranteed to operate down to 2.2 V supply.

The AR7643 is provided in a very small 16-lead SSOP package and is

guaranteed over the temperature range from 40 to +85°C.

12 3

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