ADS7843EG4

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Texas Instruments ADS7843EG4

HIGH-RELIABILITY-COMPONENTS
Part No.:
ADS7843EG4
Manufacturer:
Texas Instruments
Package:
16-SSOP (0.154, 3.90mm Width)
Datasheet:
ADS7843EG4.pdf
Description:
IC SCREEN CNTRL 12BIT 16SSOP
In Stock:
2263
Quantity:
  Add To Cart
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  • Purchase and inquiryPurchase and inquiry

    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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    ADS7843EG4 informationADS7843EG4 information

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    ADS7843EG4 Typical application Circuitry

    ADS7843EG4

    The ADS7843EG4 is a 4-wire resistive touch screen controller chip, an analog-to-digital converter (ADC) developed by Texas Instruments. It's designed to interface with a 4-wire resistive touch panel, converting touch inputs into digital data. This chip is commonly used in applications like portable devices (tablets, GPS systems), industrial controls, and touch screen monitors.

    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.

    ADS7843EG4 FAQ

    1. How to order ADS7843EG4 on icwhale.com?

    Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

    2. How does icwhale.com guarantee that ADS7843EG4 is from the original manufacturer or authorized agents?

    We have a professional and experienced quality control team to strictly verify and test the ADS7843EG4. All suppliers must pass our qualification reviews before they can publish their products including ADS7843EG4 on icwhale.com; we pay more attention to the channels and quality of ADS7843EG4 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

    3. Are the ADS7843EG4 price and inventory displayed accurate?

    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.

    4. What forms of payment are accepted?

    Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

    Warm Tips: Some orders in certain payment forms may require handling fee.

    5. How is the shipping arranged?

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    Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

    Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

    6. What is the process for return or replacement of ADS7843EG4?

    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

    7.How to contact us to get technical supports, such as ADS7843EG4 pin diagram, ADS7843EG4 datasheet?

    If you need any after-sales service, please do not hesitate to contact us.

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