AD7843集成電路（IC）的觸摸屏控制器規(guī)格書PDF中文資料

AD7843屬于集成電路（IC）的觸摸屏控制器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD7843觸摸屏控制器觸摸屏控制器是一種集成電路，可在觸摸屏傳感器陣列與屏幕操作的設(shè)備之間提供接口。該控制器從傳感器陣列（通常是電阻式或電容式）接收位置信息。然后，位置信息又通過串行、并行、USB 或 UART 接口傳遞給微控制器。

GENERAL DESCRIPTION

The AD7843 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.

FEATURES

4-wire touch screen interface

Specified throughput rate of 125 kSPS

Low power consumption:

1.37 mW max at 125 kSPS with VCC = 3.6 V

Single supply, VCC of 2.2 V to 5.25 V

Ratiometric conversion

High speed serial interface

Programmable 8-bit or 12-bit resolution

2 auxiliary analog inputs

Shutdown mode: 1 μA max

16-lead QSOP and TSSOP packages

APPLICATIONS

Personal digital assistants

Smart hand-held devices

Touch screen monitors

Point-of-sales terminals

Pagers