AD8402AR50 - Analog Devices Inc.

Manufacturer Part Number

AD8402AR50

Manufacturer

Analog Devices

Introduction

The AD8402AR50 is a digital potentiometer integrated circuit, designed for data acquisition and signal conditioning applications. It provides analog output adjustment via a digital SPI interface.

Product Features and Performance

Dual channel configuration

256 tap points for precise control

Linear taper for predictable resistance changes

SPI interface for digital control

Operates across a wide voltage range (2.7V to 5.5V)

Supports a broad temperature range (-40°C to 125°C)

Product Advantages

High resolution with 256 positions allows for fine adjustment

Dual-channel design enables control of two variables simultaneously

Linear taper ensures smooth and predictable adjustments

Direct interfacing with microcontrollers through SPI

Suitable for various power supply conditions due to its wide operating voltage range

Key Technical Parameters

Number of Circuits: 2

Number of Taps: 256

Resistance: 50k Ohms

Interface: SPI

Memory Type: Volatile

Voltage Supply: 2.7V ~ 5.5V

Temperature Coefficient: 500ppm/°C

Operating Temperature: -40°C ~ 125°C

Wiper Resistance: 200 Ohms (Typical)

Quality and Safety Features

Highly consistent performance over temperature variations

Robust design suitable for industrial environments

Tight tolerance control ensuring reliable operation

Compatibility

Compatible with a wide range of microcontrollers via SPI interface

Can be integrated into various digital control loops

Application Areas

Automotive systems

Industrial automation

Communication systems

Consumer electronics

Medical devices

Product Lifecycle

Obsolete

Awareness for customers to seek replacements or upgrades for new designs

Several Key Reasons to Choose This Product

High flexibility in adjustments with 256 taps

Dual-channel configuration increases system design versatility

Linear taper provides predictable performance

SPI interface simplifies digital control

Wide operating temperature and voltage range accommodate diverse applications

Obsolescence notice necessitates consideration for future-proofing designs