AD8402AR10

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AD8402AR10

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IC DGTL POT 10KOHM 256TAP 14SOIC

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  • メーカー品番 #AD8402AR10

  • データシート AD8402AR10 DataSheet

  • パッケージ SOP14

  • 在庫状況7799

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仕様

属性
Package Tube,Tube
ProductStatus Obsolete
Taper Linear
Configuration Potentiometer
NumberofCircuits 2
NumberofTaps 256
Resistance(Ohms) 10k
Interface SPI
MemoryType Volatile
Voltage-Supply 2.7V ~ 5.5V
Tolerance ±20%
TemperatureCoefficient(Typ) 500ppm/°C
MountingType Surface Mount
SupplierDevicePackage 14-SOIC
Package/Case 14-SOIC (0.154, 3.90mm Width)
OperatingTemperature -40°C ~ 125°C

概要

Description

The AD8402AR10 is a dual digital potentiometer, part of the AD8400 series from Analog Devices. It features two independent 10 kΩ, 256-position digitally controlled variable resistors, commonly referred to as digital potentiometers or digipots. This device allows users to adjust resistance values through a digital interface, specifically using a standard SPI-compatible serial interface, making it suitable for precision control in electronic applications.
Key features of the AD8402AR10 include a wide operating voltage range from 2.7 V to 5.5 V, low temperature coefficient, and a compact SOIC package. It offers high reliability and stability for a variety of applications such as gain control, offset adjustment, and programmable filters. The device is commonly used in audio equipment, industrial controls, and instrumentation where compact, precise, and programmable resistance control is required. Its non-volatile memory retains the wiper position even after power-off, providing consistent performance across power cycles.

Equivalent

The AD8402AR10 is a digital potentiometer with two channels and a 10k-ohm resistance. Equivalent products include:
1. MAX5482 from Maxim Integrated: Dual-channel, digital potentiometer with similar resistance.
2. MCP4251 from Microchip Technology: Dual-channel digital potentiometer, 10k-ohm variant.
3. X9C102 from Intersil (Renesas): Single channel with 10k-ohm resistance but could be used in similar applications.
4. DS1804 from Dallas Semiconductor (Maxim Integrated): Single-channel with similar specs and applications.
Ensure compatibility with your specific application requirements when choosing an equivalent.

Features

The AD8402AR10 is a digital potentiometer featuring two independent channels, each with a 10 kΩ resistance. Key features include:
1. Resolution: It offers an 8-bit resolution, providing 256 possible positions for the wiper, allowing fine adjustments for applications requiring precision.

2. Interface: It is controlled via a 3-wire, SPI-compatible serial data interface, enabling easy integration with microcontroller systems.
3. Non-Volatile Memory: Unlike some digital potentiometers, it does not have non-volatile memory, so its settings reset upon power cycling.
4. Wide Supply Range: The device operates over a voltage range of 2.7 V to 5.5 V, supporting both low-voltage and standard logic systems.
5. Compact Package: It is available in a small, space-efficient SOIC-14 package, suitable for compact PCB designs.
6. Applications: Commonly used in gain control, offset adjustment, and programmable voltage divider applications in consumer electronics, automotive, and industrial equipment.
These features make the AD8402AR10 a versatile choice for various precision control tasks in digital circuits.

Pinout

The AD8402AR10 is a digital potentiometer integrated circuit. It features a dual-channel configuration, meaning it has two potentiometers within the same package. Each channel is controlled independently via a digital interface. The key specifications are:
- Pin Count: The AD8402AR10 comes in a 14-pin SOIC (Small Outline Integrated Circuit) package.
- Function: It is used to electronically adjust resistance in a circuit. Each potentiometer in the AD8402 can be used for tasks such as adjusting signal levels, setting gain, or other applications requiring variable resistance. The resistance value of the AD8402AR10 is 10 kΩ per potentiometer.
- Digital Interface: The device is controlled via a standard SPI (Serial Peripheral Interface), allowing for simple interfacing with microcontrollers or other digital devices.
Its dual-channel nature and digital control make it suitable for applications where precise adjustment of resistance is required, particularly in digitally controlled analog circuits.

Manufacturer

The AD8402AR10 is manufactured by Analog Devices, Inc. Analog Devices is a multinational company known for designing and manufacturing a wide range of semiconductor products, primarily focusing on analog, mixed-signal, and digital signal processing (DSP) integrated circuits. These products are used in a variety of applications, including industrial, automotive, communication, healthcare, and consumer electronics. Analog Devices is renowned for its high-performance products and innovative solutions that address complex engineering challenges.

Application

The AD8402AR10 is a digital potentiometer commonly used in various applications. Key areas include:
1. Audio Equipment: For volume control and audio signal processing.
2. Instrumentation: In calibration and adjustment circuits for precision measurement devices.
3. Data Acquisition Systems: For gain and offset adjustment in data converters.
4. Communication Systems: In RF and IF amplifier gain control.
5. Industrial Automation: For set-point adjustments in control systems.
6. Consumer Electronics: In settings for brightness, contrast, and other adjustable parameters.
Its ability to replace mechanical potentiometers offers increased reliability and precision in these applications.

Package

The AD8402AR10 is available in an SOIC-14 (Small Outline Integrated Circuit) package.

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