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TEXAS INSTRUMENTS  ADS7843E  CONTROLLER IC

Product Overview

The ADS7843E 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 750uW 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 0.5uW. The ADS7843 is specified down to 2.7V operation. Low power, high speed and on board switches make the ADS7843 ideal for battery-operated systems such as personal digital assistants with resistive touch screens and other portable equipment.
  • 4-wire Touch screen interface
  • Ratiometric conversion
  • 2 Auxiliary analog inputs
  • Full power-down control
  • Green product and no Sb/Br

 

Product Information

IC Interface Type:
4 Wire, Serial, SPI
Resolution (Bits):
12bit
Supply Voltage Min:
2.7V
Supply Voltage Max:
5.25V
Controller IC Case Style:
SSOP
No. of Pins:
16Pins
Packaging:
Each
Product Range:
-
Automotive Qualifications Standard:
-
MSL:
MSL 2 - 1 year
Operating Temperature Min:
-40 °C
Operating Temperature Max:
85 °C
Supply Voltage Range:
2.7V to 5.25V
SVHC:
No SVHC (15-Jun-2015)
Controller Type:
Resistive Touch Screen
Digital IC Case Style:
SSOP

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Applications

  • Consumer Electronics;
  • Portable Devices;
  • Communications & Networking

Legislation and Environmental

Moisture Sensitivity Level:
MSL 2 - 1 year
Product Traceability
RoHS Compliant:
Yes
Authorized Distributor

Associated Products

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