onsemi

CAT5172TBI-50GT3

CAT5172TBI-50GT3 Description

The CAT5172TBI-50GT3 is a 50kΩ digital potentiometer from onsemi, designed for precision analog adjustment in modern electronic systems. This 256-tap, volatile-memory device features an SPI interface for digital control, enabling seamless integration into microcontroller-based designs. With a 2.7V to 5.5V supply range, it supports both low-power and standard voltage applications. The linear taper and ±20% tolerance ensure consistent performance, while the ±100ppm/°C temperature coefficient enhances stability across operating conditions. Packaged in a compact SOT23-8 and available in Tape & Reel (TR), it is optimized for automated assembly.

CAT5172TBI-50GT3 Features

• 256-Tap Resolution: Provides fine-grained adjustment for precise analog signal control.
• SPI Interface: Enables fast, reliable digital communication with microcontrollers.
• Wide Voltage Range (2.7V–5.5V): Compatible with both 3.3V and 5V systems.
• Low Wiper Resistance (100Ω Typ): Minimizes signal attenuation in high-precision circuits.
• Volatile Memory: Ideal for dynamic applications requiring real-time adjustments.
• Compact SOT23-8 Package: Saves board space in space-constrained designs.
• RoHS3 Compliant & REACH Unaffected: Meets environmental and regulatory standards.

CAT5172TBI-50GT3 Applications

This digital potentiometer excels in:

• Industrial Automation: Calibration of sensor thresholds and feedback loops.
• Consumer Electronics: Volume control, brightness adjustment, and user-configurable settings.
• Test & Measurement Equipment: Programmable gain amplification and offset trimming.
• Embedded Systems: Replacement for mechanical potentiometers in MCU-based designs.
• Audio Systems: Digital volume and tone control with low distortion.

Conclusion of CAT5172TBI-50GT3

The CAT5172TBI-50GT3 combines high resolution, low power operation, and robust digital control in a compact form factor, making it a versatile solution for analog signal conditioning. Its SPI interface and wide voltage range offer flexibility, while the volatile memory ensures dynamic adjustability. Though marked obsolete, it remains a reliable choice for legacy designs or applications requiring its specific performance profile. Engineers seeking a cost-effective, digitally controlled potentiometer with proven stability will find this device well-suited for precision analog applications.