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Name: AD7843ARQZ-REEL7
Brand: Analog Devices Inc.
SKU: AD7843ARQZ-REEL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Analog Devices Inc. AD7843ARQZ-REEL7

Part No.:: AD7843ARQZ-REEL7

Manufacturer:: Analog Devices Inc.

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

Datasheet:: AD7843ARQZ-REEL7.pdf

Description:: IC SCREEN CNTRL 12BIT 16QSOP

In Stock:: 1000

Quantity:: Add To Cart

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AD7843ARQZ-REEL7 Typical application Circuitry

AD7843ARQZ-REEL7

The AD7843ARQZ-REEL7 is a notable component from the AD7843 series, meticulously engineered by Analog Devices. This series is acclaimed for its precision touch screen controllers, which are pivotal in bridging the interface between touch screen input devices and digital processing systems. The AD7843ARQZ-REEL7, in particular, excels in converting the analog touch inputs into digital signals, facilitating seamless interaction in devices such as personal digital assistants (PDAs), touchscreen monitors, and other interactive applications. The "REEL7" suffix designates that this model is supplied on a 7-inch reel, optimizing it for automated assembly processes and making it ideal for large-scale production needs.

1. Introduction to the AD7843 Series: Within the realm of touch screen controllers, the AD7843ARQZ-REEL7 is celebrated for its precision and reliability in capturing and translating touch inputs into actionable digital data. Its design emphasizes low power consumption and high accuracy, ensuring that it meets the stringent requirements of modern touch-sensitive applications.

2. Power Supply and Grounding Configurations: The AD7843ARQZ-REEL7 operates efficiently with a single power supply, typically ranging from 2.2V to 5.25V. This flexibility allows it to be integrated into a wide variety of systems without necessitating complex power management schemes. Grounding is equally critical, with a dedicated ground pin (GND) that must be properly connected to the system ground to minimize noise and ensure accurate signal processing.

3. Detailed Pin Connections and Signal Processing: The device features several key pins, including the V_DRIVE pin, which interfaces with the logic level of the host processor, allowing the AD7843ARQZ-REEL7 to adapt to various logic levels for maximum compatibility. The CS (Chip Select), DIN (Data Input), DOUT (Data Output), and CLK (Clock) pins facilitate communication with the processor via a serial interface, enabling efficient data transfer and control.

4. Analog Input Handling and Conversion: The X+ and X- pins, along with the Y+ and Y- pins, are designed for direct connection to the resistive touchscreen's horizontal and vertical planes, respectively. These connections allow the AD7843ARQZ-REEL7 to measure the touch location by applying a voltage across the touchscreen and measuring the voltage at the touch point. The internal analog-to-digital converter (ADC) then converts these measurements into digital signals for further processing.

5. Integration into Touchscreen Systems: The seamless integration of the AD7843ARQZ-REEL7 into touchscreen systems is facilitated by its compact design and comprehensive functionality, which includes on-chip functions such as a 12-bit ADC, switch matrix, and reference voltage generator. These features reduce the need for external components, simplifying the design and reducing the overall footprint of the touch control system.

In conclusion, the AD7843ARQZ-REEL7 is a cornerstone in the development of interactive touch-based systems, offering precision, flexibility, and ease of integration. Its detailed pin configuration and sophisticated signal processing capabilities make it an invaluable asset in the design and implementation of advanced touch interface applications. By leveraging the AD7843ARQZ-REEL7's capabilities, designers can create highly responsive and accurate touch interfaces that enhance user interaction and experience.

AD7843ARQZ-REEL7 information

AD7843ARQZ-REEL7 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:
2.2V ~ 5.25V
Current-Supply:
-
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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6. What is the process for return or replacement of AD7843ARQZ-REEL7?

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 AD7843ARQZ-REEL7 we delivered, we will accept the replacement or return of the AD7843ARQZ-REEL7 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 AD7843ARQZ-REEL7.

(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