CAT5118TBI-00-T3

Digital Potentiometers Overview

The CAT5118TBI-00-T3 is a single-channel digital potentiometer manufactured by onsemi, belonging to the MiniPot family. It features a linear taper with 32 tap positions and a total resistance of 100 kOhms. The device operates within a supply voltage range of 2.7 V to 5.5 V and consumes 25 uA of current. It utilizes a 2-wire serial interface for up/down control and is housed in a compact SOT-23-5 surface-mount package. The component supports an operating temperature range from -40°C to +85°C.

Digital Potentiometers Feature Summary

• Single digital potentiometer with 32-tap resolution
• 100 kOhms nominal resistance with linear taper
• 2-wire serial (Up/Down) control interface
• Volatile wiper memory retains state during operation

Digital Potentiometers Applications

• Variable gain amplifier adjustment
• Digital volume control in audio circuits
• Voltage reference trimming
• Sensor bias calibration

Digital Potentiometers Procurement Notes

Verify end-of-life status as the CAT5118 series may be discontinued. Confirm RoHS compliance details through official datasheets before procurement. Check for availability of alternative packages or updated revision numbers if long-term supply is required.

Digital Potentiometers Selection Notes

Select this part for applications requiring high resistance values up to 100 kOhms with precise digital adjustment. Ensure the system design accommodates volatile memory behavior, as wiper position resets upon power loss. Verify that the 2-wire interface timing matches the microcontroller's serial communication capabilities.

Digital Potentiometers Part Context

This component is part of the CAT511x series of 32-tap digital potentiometers. It shares functional similarities with the CAT5119 but differs in configuration; the CAT5118 is configured as a potentiometer, whereas other variants like the CAT5119 are configured as variable resistors within the same family.

Digital Potentiometers Replacement Considerations

Direct substitutes include CAT5118TBI-10GT3 and CAT5118SDI-10GT3, which share the same core functionality but differ in packaging (SOT-23-5 vs SC-70). Cross-reference with CAT5119 series parts only if variable resistor configuration is acceptable.