ADS7843E Integrated Circuit Ic Chip 12Bit 4 Wire Resistive Touch Screen Controller IC

ADS7843E Integrated Circuit Ic Chip 12Bit 4 Wire Resistive Touch Screen Controller

Applications

● PERSONAL DIGITAL ASSISTANTS

● PORTABLE INSTRUMENTS

● POINT-OF-SALES TERMINALS

● PAGERS

● TOUCH SCREEN MONITORS

Specifications

Description

The ADS7843 is a 12-bit sampling Analog-to-Digital Converter (ADC) with a synchronous serial interface and low onresistance switches for driving touch screens. Typical power dissipation is 750µW at a 125kHz throughput rate and a +2.7V supply. The reference voltage (VREF) can be varied between 1V and +VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces typical power dissipation to under 0.5µW. The ADS7843 is specified down to 2.7V operation.

Low power, high speed, and onboard switches make the ADS7843 ideal for battery-operated systems such as personal digital assistants with resistive touch screens and other portable equipment. The ADS7843 is available in an SSOP-16 package and is specified over the –40°C to +85°C temperature range.

Features

● 4-WIRE TOUCH SCREEN INTERFACE

● RATIOMETRIC CONVERSION

● SINGLE SUPPLY: 2.7V to 5V

● UP TO 125kHz CONVERSION RATE

● SERIAL INTERFACE

● PROGRAMMABLE 8- OR 12-BIT RESOLUTION

● 2 AUXILIARY ANALOG INPUTS

● FULL POWER-DOWN CONTROL

Trading Guides

Shenzhen Retechip® Electronic Technology Co., Ltd. was established in 2013, specializing in electronic components distribution business.The products are widely used in communication equipment, power supply, medical electronics, automotive electronics, digital electronics, industrial electronics, display modules, intelligent electronics, new energy, the Internet of things, 5G productsand other fields，With high-quality products, reasonable prices, rapid distributionand timely service, we can provide customers with the most cost-effective products and save customers a lot of time.