What is the Additional Feature ?

Name: ADS7843E/2K5
Brand: Texas Instruments
SKU: ADS7843E/2K5
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments ADS7843E/2K5

Part No.:: ADS7843E/2K5

Manufacturer:: Texas Instruments

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

Datasheet:: ADS7843E/2K5.pdf

Description:: IC SCREEN CNTRL 12BIT 16SSOP

In Stock:: 2916

Quantity:: Add To Cart

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ADS7843E/2K5 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ADS7843E/2K5 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/2K5 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/2K5 Typical application Circuitry

ADS7843E 2K5

The ADS7843E/2K5 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/2K5:

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

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

3. Serial Interface: Equipped with a Serial Peripheral Interface (SPI) compatible interface for integration with microcontrollers and digital systems.

4. Low Power Consumption: Ideal for battery-powered and portable devices due to its efficiency in power usage.

Application Scenario: Portable Electronic Device Touch Screen

Circuit Connection Details:

1. Power Supply Connection: Connect the VCC pin of the ADS7843E/2K5 to a stable power source, typically between 2.7V and 5.5V.

2. Touch Screen Panel Connections: Attach the X+, Y+, X-, and Y- pins of the ADS7843E/2K5 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 Pins Utilization: Use the PENIRQ (Pen Interrupt) pin for touch event detection and the BUSY pin to check the ADC conversion status.

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/2K5 is essential for accurate touch input detection.

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

4. Placement and Shielding: Carefully consider the placement of the controller and touch panel to minimize electrical interference.

Conclusion

The ADS7843E/2K5 is highly effective for adding touch screen functionality to portable electronic devices, characterized by its specialized design for 4-wire resistive touch screens, 12-bit resolution, SPI compatibility, and low power consumption. In designing circuits with the ADS7843E/2K5, focus on power supply stability, touch screen calibration, SPI communication integrity, and strategic component placement and shielding to achieve responsive and accurate touch input functionality.

ADS7843E/2K5 information

ADS7843E/2K5 Specifications

Package/Case:
16-SSOP (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
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

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6. What is the process for return or replacement of ADS7843E/2K5?

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/2K5 we delivered, we will accept the replacement or return of the ADS7843E/2K5 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/2K5.

(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