The CAT5119TBI-10-T3 is a digitally programmable potentiometer (DPP) from Catalyst Semiconductor (now part of ON Semiconductor). This device allows for precise and adjustable resistance settings through a digital interface. It is ideal for applications where trimming, calibration, or dynamic resistance adjustment is required.

Applications

• Calibration of Sensors and Transducers.
• Volume Control in Audio Equipment.
• Brightness Control in Displays.
• Adjustable Gain Amplifiers.
• Replacement of Mechanical Potentiometers.

Features

• Single channel, 10 kΩ digitally programmable potentiometer.
• 32 or 64 tap points (resistance settings), depending on specific part number.
• I2C-compatible interface for digital control.
• Non-volatile memory for storing wiper position.
• Low temperature coefficient.
• Single-supply operation.
• Small package (TSSOP or SOIC).

Benefits

• Precise and repeatable resistance adjustments.
• Remote control and automated calibration.
• Elimination of manual trimming, saving time and labor.
• Increased system reliability and stability.
• Reduced component count and board space compared to discrete solutions.

Additional Details

The CAT5119TBI-10-T3 typically offers 32 or 64 tap points, providing fine-grained control over the resistance value. The wiper position can be adjusted via an I2C-compatible serial interface. The device includes non-volatile memory, which allows the wiper position to be stored even when power is removed. This feature ensures that the desired resistance setting is retained after power cycling. The CAT5119TBI-10-T3 operates from a single supply voltage, typically in the range of 2.7V to 5.5V. It is available in a small TSSOP or SOIC package, making it suitable for space-constrained applications. Due to its end-of-life status, it's important to consider alternative devices for new designs. However, it might still be used for maintaining existing systems.