CAT5259WI-50-T1

Digital Potentiometers Overview

The CAT5259WI-50-T1 is a quad digitally programmable potentiometer (DPP) manufactured by onsemi. It integrates four linear taper potentiometers, each featuring 256 resistor taps and an end-to-end resistance of 50 kΩ with a 20% tolerance. The device utilizes an I²C interface for control and memory access. It includes nonvolatile memory to store wiper settings, ensuring data retention without power. Operating voltage ranges from 2.5 V to 6.0 V, with a standby current of less than 1 µA. The component is housed in a 24-lead SOIC package and supports an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Quad configuration with 256 taps per potentiometer
• Nonvolatile memory retains wiper settings after power loss
• I²C serial interface for control and data access
• Low standby current (< 1 µA) and 1 million write cycles

Digital Potentiometers Applications

• Industrial process control systems requiring adjustable gain or offset
• Audio equipment for digital volume or tone control
• Test and measurement instruments needing precise resistance calibration
• Battery-powered devices utilizing low-power standby modes

Digital Potentiometers Procurement Notes

Verify the specific suffix 'T1' indicates tape and reel packaging as per manufacturer documentation. Confirm the 'WI' designation corresponds to the SOIC-24 package variant. Check for obsolescence status, as this component may be discontinued or subject to last-time buy restrictions. Ensure compatibility with I²C bus voltage levels within the 2.5 V to 6.0 V operating range.

Digital Potentiometers Selection Notes

Select this model when four independent 50 kΩ digital potentiometers are required in a single package. The 256-tap resolution provides fine adjustment steps compared to lower-resolution alternatives. Verify that the I²C interface aligns with the system's communication protocol. Consider the 20% resistance tolerance if high precision is not critical, or select tighter tolerance variants if available.

Digital Potentiometers Part Context

This part belongs to the CAT5259 family of quad digitally programmable potentiometers. The 'W' typically denotes the SOIC package, while 'I' indicates the industrial temperature range. The '50' specifies the 50 kΩ resistance value. The 'T1' suffix generally refers to the shipping format, such as tape and reel, distinguishing it from tube or cut tape options.

Digital Potentiometers Replacement Considerations

Direct replacements include other CAT5259 variants with different resistance values (e.g., CAT5259WI-100-T1 for 100 kΩ). Cross-reference with CAT5259JI-50-T1 if a JEDEC-compliant pinout or specific commercial temperature range is acceptable. Verify pin compatibility and electrical specifications before substituting.