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Name: ADS7843E/2K5G4
Brand: Texas Instruments
SKU: ADS7843E/2K5G4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Texas Instruments ADS7843E/2K5G4

Part No.:: ADS7843E/2K5G4

Manufacturer:: Texas Instruments

Package:: 16-SSOP (0.154, 3.90mm Width)

Datasheet:: ADS7843E/2K5G4.pdf

Description:: IC SCREEN CNTRL 12BIT 16SSOP

In Stock:: 3568

Quantity:: Add To Cart

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ADS7843E/2K5G4 Specifications

Package/Case:
16-SSOP (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Discontinued at Mosen
Touchscreen:
4 Wire Resistive
Resolution(Bits):
12 b
Interface:
Serial
VoltageReference:
External
Voltage-Supply:
2.7V ~ 5V
Current-Supply:
2.5 µA
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

ADS7843E/2K5G4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ADS7843E/2K5G4 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 ADS7843E/2K5G4 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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ADS7843E/2K5G4 information

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ADS7843E/2K5G4 Typical application Circuitry

ADS7843E 2K5G4

The ADS7843E/2K5G4 is a 4-wire resistive touch screen controller, an analog-to-digital converter (ADC) developed by Texas Instruments. This chip is specifically designed for interfacing with resistive touch screens and is widely used in applications like portable electronic devices (smartphones, tablets), industrial controls, and touch-enabled information systems.

Key Features of the ADS7843E/2K5G4:

1. Touch Screen Controller: Tailored for 4-wire resistive touch screens, interpreting touch inputs and converting them into digital data.

2. 12-Bit Resolution: Provides a 12-bit resolution, ensuring precise touch position detection.

3. Serial Interface: Features a Serial Peripheral Interface (SPI) compatible interface, allowing for easy integration with microcontrollers and digital systems.

4. Low Power Consumption: Its efficient power usage makes it ideal for battery-powered and portable devices.

Application Scenario: Touch Screen Interface for an Industrial Control Panel

Circuit Connection Details:

1. Power Supply Connection: Connect the VCC pin of the ADS7843E/2K5G4 to a stable power source, typically between 2.7V and 5.5V.

2. Touch Screen Panel Connections: Connect the X+, Y+, X-, and Y- pins of the ADS7843E/2K5G4 to the corresponding electrodes on the 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 Pins Use: Utilize the PENIRQ (Pen Interrupt) pin for detecting touch events and the BUSY pin to monitor the status of ADC conversions.

Design Considerations:

1. Stable Power Source: Ensure a consistent and noise-free power supply for accurate touch screen operation.

2. Touch Screen Calibration: Proper calibration of the touch screen with the ADS7843E/2K5G4 is crucial for precise touch input detection.

3. SPI Communication Integrity: Set up a reliable SPI communication, considering the signal integrity and synchronization with the microcontroller.

4. Physical Placement and Shielding: Consider the placement of the touch screen controller in relation to other electronic components to minimize interference.

Conclusion

The ADS7843E/2K5G4 is highly effective for implementing touch screen interfaces in industrial control panels due to its specialization in 4-wire resistive touch screens, 12-bit resolution, SPI compatibility, and low power consumption. Designing circuits with the ADS7843E/2K5G4 requires careful attention to power supply quality, touch screen calibration, SPI communication reliability, and component placement and shielding to ensure responsive and accurate touch functionality.

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6. What is the process for return or replacement of ADS7843E/2K5G4?

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 ADS7843E/2K5G4 we delivered, we will accept the replacement or return of the ADS7843E/2K5G4 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 ADS7843E/2K5G4.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations