Hot-selling and scarce AD7843ARQZ Touch Screen Digitizer TSSOP16 spot stock

Product Descriptions

The AD7843 is a 12-bit successive approximation ADC with asynchronous serial interface and low on resistance switches fordriving touch screens.The part operates from a single 2.2 V to5.25 V power supply and features throughput rates greater than125 kSPS .

The external reference applied to the AD7843 can be variedfrom 1 V to +VCC,while the analog input range is from 0 V toVREF. The device includes a shutdown mode that reduces thecurrent consumption to less than 1 µA .

The AD7843 features on-board switches.This,coupled with lowpower and high speed operation,make this device ideal forbattery-powered systems such as personal digital assistants withresistive touch screens,and other portable equipment.The partis available in a 16-lead 0.15" quarter size outline package(QSOP) and a 16-lead thin shrink small outline package(TSSOP).​

Product 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

Product Applications

Personal digital assistants

Smart hand-held devices

Touch screen monitors

Point-of-sales terminals

Pagers

Product Specification

Product Photos

For more product information, please download the PDF