CAT5110SDI-10-T3

Digital Potentiometers Overview

The CAT5110SDI-10-T3 is a single-channel digital potentiometer from onsemi, featuring 32 linear taps and a nominal end-to-end resistance of 10 kΩ. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with an active supply current of 25 µA and standby current under 1 µA at 5 V. The device utilizes a 2-wire up/down serial interface for wiper control and includes power-on reset circuitry that defaults the wiper to midscale upon initialization. Packaged in a space-saving SC-70 (6-pin) format, it offers glitchless switching between resistor taps.

Digital Potentiometers Feature Summary

• Single-supply operation from 2.7 V to 5.5 V with ultra-low standby current (0.3 µA typ at 5 V).
• Glitchless switching between resistor taps ensures stable analog performance during adjustments.
• Power-on reset (POR) circuitry sets the wiper position to midscale at startup.
• Configured as a potentiometer with 32-tap resolution and linear taper characteristics.

Digital Potentiometers Applications

• LCD screen contrast and bias adjustment.
• Volume control in audio circuits.
• Gain adjustment for operational amplifier configurations.
• Line impedance matching.
• Replacement for mechanical potentiometers in automated production lines.

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and shipping quantity. The 'SD' suffix indicates the SC-70 package, while '-T3' denotes tape and reel packaging. Confirm RoHS compliance status and lead-free finish specifications directly with the supplier or datasheet before procurement.

Digital Potentiometers Selection Notes

Select this component when a compact digital potentiometer with low standby current is required. Ensure the application voltage falls within the 2.7 V to 5.5 V range. For variable resistor functionality rather than potentiometer use, consider the CAT5118 variant. Verify that the 32-tap resolution meets the precision requirements of the target circuit.

Digital Potentiometers Part Context

This part belongs to the CAT5110/18/19/23/24/25 family of 32-tap digital potentiometers. While other variants in the series offer different resistance values (50 kΩ, 100 kΩ) or pin counts (5-pin for variable resistors), the CAT5110 is specifically configured as a potentiometer available in both SC-70 and SOT-23 packages.

Digital Potentiometers Replacement Considerations

Direct replacements within the same family include CAT5110SDI-50GT3 (50 kΩ) and CAT5110SDI-00GT3 (100 kΩ) for identical pinouts and interfaces with different resistance values. Cross-family substitutes like the CAT5112 offer buffered wipers but require different control interfaces.