ADS7843EG4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ADS7843EG4 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for ADS7843EG4 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.
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Key Features of the ADS7843EG4:
1. Touch Screen Controller: Specifically designed for interfacing with 4-wire resistive touch screens.
2. 12-Bit Resolution: Offers 12-bit resolution, ensuring precise touch position detection.
3. Serial Interface Compatibility: Features a serial interface compatible with SPI (Serial Peripheral Interface), facilitating easy integration with most microcontrollers.
4. Low Power Consumption: Ideal for use in battery-powered applications due to its efficiency in power usage.
Application Scenario: Portable Device Touch Screen Interface
Circuit Connection Details:
1. Power Supply Connection: Connect the VCC pin of the ADS7843EG4 to a stable power source, typically ranging from 2.7V to 5V.
2. Touch Screen Panel Connection: Attach the X+, Y+, X-, and Y- pins of the ADS7843EG4 to the corresponding electrodes on a 4-wire resistive touch screen panel.
3. Serial Communication Setup: Interface the DCLK, DIN, DOUT, and CS (Chip Select) pins with the respective SPI pins on a microcontroller.
4. Auxiliary Features: Utilize the PENIRQ (Pen Interrupt) pin for detecting touch events and the BUSY pin to check the status of ADC conversions.
Design Considerations:
1. Stable Power Source: Ensure the power supply to the ADS7843EG4 is consistent and free from noise for accurate performance.
2. Touch Panel Calibration: The touch screen panel should be properly calibrated to work seamlessly with the ADS7843EG4.
3. SPI Communication Reliability: Establish a robust and error-free SPI communication, considering aspects like signal integrity and synchronization.
4. Placement and Shielding: Carefully consider the physical placement of the controller and touch panel to minimize electrical interference and ensure reliable operation.
Conclusion
The ADS7843EG4 is highly suitable for adding touch screen functionality to portable devices, characterized by its specialized design for 4-wire resistive touch screens, 12-bit resolution, SPI compatibility, and low power consumption. In designing with the ADS7843EG4, focusing on power supply stability, touch screen calibration, SPI communication integrity, and strategic component placement and shielding is crucial to achieve responsive and accurate touch input capabilities.
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The price and inventory of ADS7843EG4 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ADS7843EG4 we delivered, we will accept the replacement or return of the ADS7843EG4 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of ADS7843EG4.
(3)The PartNo is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
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