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ADS7845 - TOUCH SCREEN CONTROLLER

Download the ADS7845 datasheet PDF. This datasheet also covers the ADS7845_Burr variant, as both devices belong to the same touch screen controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The ADS7845 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.

Key Features

  • q 5-WIRE TOUCH SCREEN.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ADS7845_Burr-BrownCorporation.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
ADS7841-Q1 Analog-to-Digital Converter Texas Instruments
ADS7843-Q1 TOUCH SCREEN CONTROLLER Texas Instruments
ADS7822-Q1 Analog-to-Digital Converter Texas Instruments
ADS7826 Analog-to-Digital Converter Burr-Brown
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Other Datasheets by Burr-Brown (Texas Instruments)

Part Number Description
ADS7841 12-Bit/ 4-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7842 12-Bit/ 4-Channel Parallel Output Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7843 TOUCH SCREEN CONTROLLER
ADS7844 12-Bit/ 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7846 TOUCH-SCREEN CONTROLLER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
® ADS 784 ADS7845 5 TOUCH SCREEN CONTROLLER FEATURES q 5-WIRE TOUCH SCREEN INTERFACE q RATIOMETRIC CONVERSION q SINGLE SUPPLY: 2V to 5V q UP TO 125kHz CONVERSION RATE q SERIAL INTERFACE q PROGRAMMABLE 8- OR 12-BIT RESOLUTION q AUXILIARY ANALOG INPUTS q FULL POWER-DOWN CONTROL DESCRIPTION The ADS7845 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 ADS7845 is guaranteed down to 2.