CAT5114LI-50

Digital Potentiometers Overview

The CAT5114LI-50-G is a single digital potentiometer IC manufactured by onsemi, designed as an electronic replacement for mechanical potentiometers. It features a 50 kOhm resistance value with 32 taps and linear taper characteristics. The device utilizes a non-volatile EEPROM to store wiper settings, ensuring data retention during power loss. It operates on a single supply voltage ranging from 2.5 V to 6.0 V, with typical current consumption of 100 uA. The component supports a serial up/down interface via three control pins (CS, U/D, INC) and is housed in an 8-pin PDIP package suitable for through-hole mounting.

Digital Potentiometers Feature Summary

• Non-volatile memory retains wiper position after power down
• 32-tap linear taper potentiometer with 50 kOhm total resistance
• Serial up/down control interface using CS, U/D, and INC pins
• Single supply operation between 2.5 V and 6.0 V

Digital Potentiometers Applications

• Automated product calibration on high-volume production lines
• Remote or hazardous environment equipment requiring periodic adjustment
• Electronic replacement for mechanical trim pots

Digital Potentiometers Procurement Notes

Verify the specific suffix 'G' for RoHS compliance when sourcing. Confirm availability status as distribution channels may list this part as obsolete or limited stock. Ensure the PDIP-8 package matches the target PCB footprint requirements.

Digital Potentiometers Selection Notes

Select this model for applications requiring precise linear resistance adjustment without mechanical wear. Compare tap counts against other family members like CAT5113 (100 taps) if higher resolution is needed. Verify that the 3-wire serial interface aligns with the system's microcontroller GPIO capabilities.

Digital Potentiometers Part Context

This component belongs to the CAT51x series of linear-taper digital potentiometers from onsemi. The series offers various resistance values (10k, 50k, 100k) and tap configurations. The LI-50 designation specifically indicates the Linear taper, 50k Ohm resistance, and PDIP package variant within this family.

Digital Potentiometers Replacement Considerations

Direct pin-compatible substitutes include other CAT5114 variants such as CAT5114VI-50 (SOIC package) or CAT5114ZD7I50GT3 (TDFN package). Ensure the replacement maintains the same 32-tap count and non-volatile memory feature.