CAT5111ZI-10-T3

Digital Potentiometers Overview

The CAT5111ZI-10-T3 is a single-channel digital potentiometer manufactured by onsemi, housed in an MSOP-8 package. It features a 10 kΩ linear taper resistor array with 100 tap positions and a buffered wiper output. The device operates on a single supply voltage ranging from 2.5 V to 6.0 V, with a typical standby current of 75 µA. Control is managed via a three-wire serial interface using CS, U/D, and INC pins. Non-volatile EEPROM storage retains the wiper position during power loss, automatically recalling it upon power restoration.

Digital Potentiometers Feature Summary

• 100-tap linear taper digital potentiometer with 10 kΩ resistance
• Non-volatile EEPROM memory for wiper position retention
• Buffered wiper output capable of sourcing or sinking up to 3 mA
• Three-wire serial interface (CS, U/D, INC) for increment/decrement control

Digital Potentiometers Applications

• Automated product calibration
• Remote control adjustments
• Offset, gain, and zero control circuits
• Tamper-proof calibration systems
• Programmable analog functions such as volume or brightness controls

Digital Potentiometers Procurement Notes

Verify the 'I' suffix indicates the industrial temperature range (-40°C to +85°C). Confirm the 'Z' suffix corresponds to the MSOP-8 package and the 'T3' suffix denotes tape and reel shipping. Ensure the '10' code specifies the 10 kΩ resistance value. Check for RoHS compliance and Matte-Tin lead finish specifications required for the MSOP variant.

Digital Potentiometers Selection Notes

Select this component when non-volatile memory is required to maintain settings across power cycles. The buffered wiper makes it suitable for driving loads directly, unlike unbuffered variants. Verify that the 100-tap resolution meets system requirements. Ensure the control logic supports the three-wire incremental interface. Consider the MSOP-8 package dimensions for PCB layout constraints.

Digital Potentiometers Part Context

This part belongs to the CAT5111 family of digital potentiometers. The 'ZI' designation identifies the MSOP-8 package with industrial temperature rating. The '10' indicates the 10 kΩ resistance value. The 'T3' suffix specifies the reel packaging format. Other variants exist with different resistances (50 kΩ, 100 kΩ) and packages (PDIP, SOIC, TSSOP).

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements within the same family include CAT5111VI-10-T3 (SOIC-8) and CAT5111YI-10-T3 (TSSOP-8), provided the package footprint allows adaptation. Cross-family replacements require verification of interface compatibility and buffer specifications.