CAT522WI-T2

Digital Potentiometers Overview

The CAT522WI-T2 is a digital potentiometer IC manufactured by onsemi, housed in a 14-SOIC package. It features a single resistive element with a nominal resistance of 24 kOhms and a linear taper profile. The device provides 64 tap positions for precise resistance adjustment and utilizes a serial I2C interface for control. It operates within a supply voltage range of 2.5 V to 6 V and includes non-volatile memory to retain settings without power. The component supports surface-mount installation and functions across an industrial temperature range from -40°C to +85°C.

Digital Potentiometers Feature Summary

• Retains wiper position data through non-volatile memory storage even when power is removed
• Provides linear resistance taper characteristics for consistent adjustment steps
• Interfaces via standard two-wire I2C serial communication protocol

Digital Potentiometers Applications

• Volume control circuits in audio equipment
• Gain adjustment stages in signal processing systems
• Calibration settings for sensor biasing networks

Digital Potentiometers Procurement Notes

Verify the specific suffix T2 against official datasheets to confirm packaging configuration. Confirm that the 24 kOhm resistance value matches the design requirements. Check RoHS compliance status and moisture sensitivity levels before assembly planning. Ensure the I2C address configuration aligns with system constraints.

Digital Potentiometers Selection Notes

Select this component when a single-channel digital potentiometer with moderate resolution is required. The 24 kOhm value suits applications needing higher impedance than standard 10 kOhm variants. The SOIC-14 package offers a balance of pin count and board space. Consider the I2C interface compatibility with the host microcontroller.

Digital Potentiometers Part Context

This part belongs to the CAT522 series of linear-taper digital potentiometers. It serves as a solid-state alternative to mechanical potentiometers, offering improved reliability and programmability. The series integrates non-volatile memory to maintain settings across power cycles, distinguishing it from volatile counterparts.

Digital Potentiometers Replacement Considerations

Check for direct cross-reference models within the same family featuring identical resistance and package dimensions. Verify interface compatibility if substituting with other I2C digital potentiometers.