AD8402AR1 - Analog Devices Inc.

Manufacturer Part Number

AD8402AR1

Manufacturer

Analog Devices

Introduction

The AD8402AR1 is a dual-channel, 256-position digital potentiometer with an SPI interface, designed for data acquisition and control applications.

Product Features and Performance

Dual-channel potentiometer configuration

256-position wiper for precise adjustments

Linear taper characteristic for straightforward scaling

Operates with 2.7V to 5.5V supply

Integrated SPI interface for digital control

Volatile memory reverting to initial state after power-down

Product Advantages

Multi-channel design allows for concurrent control of two settings

Precision electronic adjustment replaces mechanical potentiometers

Robust digital control facilitates integration with microcontrollers and digital systems

Key Technical Parameters

Number of Circuits: 2

Number of Taps: 256

Resistance: 1k Ohms

Voltage Supply Range: 2.7V to 5.5V

Temperature Coefficient: 500ppm/°C typical

Operating Temperature Range: -40°C to 125°C

Wiper Resistance: 200 Ohms typical

Quality and Safety Features

Consistent performance over temperature and supply voltage ranges

Defined performance characteristics for reliable operation

Compatibility

SPI interface for compatibility with a broad range of digital control systems

Surface mount 14-SOIC package for standard PCB assembly processes

Application Areas

Data acquisition systems

Digital control systems

Industrial automation

Test and measurement equipment

Product Lifecycle

Obsolete status with potential for limited availability

Replacement and upgrade options may need to be evaluated

Several Key Reasons to Choose This Product

Precision control with 256 tap points enhances accuracy in settings

Dual-channel design supports multiple applications with a single device

Reliable operation confirmed by extended temperature range and stability

Electronic control via SPI allows for programmability and system integration

Respected manufacturer with a reputation for quality in analog devices