The CAT524JI-TE13 is a dual, 256-tap, digitally controlled potentiometer (DCP) manufactured by Catalyst Semiconductor (now part of ON Semiconductor). It offers precise resistance adjustment through a digital interface, making it suitable for a wide range of electronic applications.

Applications

• LCD brightness and contrast control
• Volume control in audio equipment
• Automated calibration circuits
• Sensor trimming and adjustment
• Programmable gain and offset adjustment

Features

• Dual potentiometer in a single package
• 256 wiper tap points per potentiometer
• SPI compatible interface
• Non-volatile memory for wiper position storage
• Wide operating voltage range

Benefits

• Precise and repeatable resistance adjustment
• Digital control eliminates mechanical wear
• Easy integration with microcontrollers and digital systems
• Non-volatile memory retains settings without power
• Reduces component count and board space

Additional Details

The CAT524JI-TE13 features an SPI interface, allowing easy control from a microcontroller. Each potentiometer has 256 tap points, providing fine-grained resistance adjustment. The non-volatile memory allows the wiper position to be stored and recalled, even after power is removed. The device operates over a wide voltage range and is available in a small surface-mount package. Its typical resistance value is 10 kOhms. It's used in applications needing precise, digitally controlled resistance adjustment, eliminating the need for manual trimming potentiometers. The operating temperature range is typically -40°C to +85°C. This product is often used in industrial and consumer electronics where automated calibration and adjustment are required.