CAT5112ZI-50-GT3

Digital Potentiometers Overview

The CAT5112ZI-50-GT3 is a single-channel digital potentiometer manufactured by onsemi. It features a 50 kΩ resistance value with 32 discrete taps and linear taper characteristics. The device utilizes a non-volatile memory architecture to retain wiper settings upon power loss. Control is managed via a serial 3-wire interface supporting up/down increment/decrement commands. It operates within a supply voltage range of 2.5 V to 6 V, drawing a typical current of 200 µA. The component is housed in an 8-pin MSOP surface-mount package and functions reliably across an industrial temperature range from -40 °C to +85 °C.

Digital Potentiometers Feature Summary

• Non-volatile memory retains wiper position after power cycle
• 32-tap resolution with linear resistance taper
• Buffered wiper output for improved drive capability
• Serial 3-wire control interface (INC, CS, CLK)

Digital Potentiometers Applications

• Automated gain control in instrumentation circuits
• Volume or tone adjustment in audio equipment
• Calibration of sensor signal conditioning paths
• Voltage reference trimming in measurement systems

Digital Potentiometers Procurement Notes

Verify the specific suffix GT3 against the manufacturer's latest datasheet to confirm tape-and-reel packaging specifications. Confirm RoHS compliance status through official documentation prior to integration. Check for end-of-life notifications as discontinuation may affect long-term availability.

Digital Potentiometers Selection Notes

Select this component when a buffered wiper is required to drive low-impedance loads directly. Ensure the 50 kΩ nominal resistance aligns with the target circuit impedance requirements. Verify that the 3-wire serial protocol matches the microcontroller's available GPIO configuration.

Digital Potentiometers Part Context

This part belongs to the CAT5112 family of digitally programmable potentiometers. It serves as an electronic replacement for mechanical potentiometers in high-volume production environments where manual adjustment is impractical or hazardous.

Digital Potentiometers Replacement Considerations

CAT5112VI-50-GT3 offers identical electrical performance with potential variations in manufacturing origin or minor parameter tolerances.