ADS7843-Q1 Automotive 4-wire Touch Screen Controller |

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Automotive 4-wire Touch Screen Controller

Automotive 4-wire Touch Screen Controller - ADS7843-Q1

Recommended alternative parts

  • TSC2013-Q1  -  I2C dual touch screen controller with rotate & zoom gesture capability


The ADS7843-Q1 is a 12-bit sampling Analog-to-Digital Converter (ADC) with a synchronous serial interface and low on-resistance 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-Q1 is specified down to 2.7V operation.

Low power, high speed, and onboard switches make the ADS7843-Q1 ideal for battery-operated systems such as personal digital assistants with resistive touch screens and other portable equipment. The ADS7843-Q1 is available in an SSOP-16 package and is specified over the –40°C to +85°C temperature range.


  • Qualified for Automotive Applications
  • 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


Compare all products in Touch screen controllers Email Download to Excel
Part number Order Touch panel SAR ADC resolution (Bits) Input type Interface Vref (int/ext) Control interface Operating temperature range (C) Rating
ADS7843-Q1 Order now 4-Wire     12     Single-Ended     Serial     Int     SPI     -40 to 125     Automotive