Manufacturer Part Number
AD8403AR100
Manufacturer
Analog Devices
Introduction
The AD8403AR100 is a digital potentiometer designed for precise resistance tuning in electronic circuits.
Product Features and Performance
4 independent potentiometer channels
256 position adjustments per channel
Linear resistance change with each step
SPI digital interface for communication
Volatile memory retains settings only while powered
Product Advantages
Provides accurate adjustments to the resistance
Supports cascade configurations for expanded utility
Digital interfacing allows easy integration with microcontrollers and other digital systems
Key Technical Parameters
Resistance: 100kΩ
Number of Circuits: 4
Number of Taps: 256
Memory Type: Volatile
Voltage Supply Range: 2.7V to 5.5V
Temperature Coefficient: 500ppm/°C
Interface: SPI
Quality and Safety Features
Operating Temperature Range: -40°C to 125°C
Tolerance: ±30% at nominal resistance
Temperature Coefficient ensures stability across a wide range of temperatures
Compatibility
24-SOIC (0.295", 7.50mm Width) surface mount package is universally compatible with standard PCBs
Application Areas
Industrial control systems
Telecommunications
Consumer electronics
Product Lifecycle
Product Status: Obsolete
Information on direct replacements or possible upgrades may need to be obtained from the manufacturer.
Several Key Reasons to Choose This Product
High precision digital control of resistance values
Multi-channel configuration allows for use in complex systems
SPI interface simplifies digital integration
Wide operating temperature range supports use in harsh environments
Analog Devices' reputation for high-quality electronic components