CAT5261YI-00

Digital Potentiometers Overview

The CAT5261YI-00 is a dual-channel digital potentiometer manufactured by onsemi, housed in a 24-TSSOP surface-mount package. It features two independent circuits, each with 256 tap positions and a total resistance of 100 kOhms. The device operates within a supply voltage range of 2.5V to 6V and utilizes non-volatile memory to retain wiper settings upon power loss. It supports an industrial operating temperature range from -40°C to +85°C and exhibits a typical temperature coefficient of 300ppm/°C.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 256 discrete tap positions per channel
• Non-volatile memory retains wiper position after power cycle
• 100 kOhms nominal resistance with 100 Ohms contact resistance
• Operates on 2.5V to 6V supply voltage

Digital Potentiometers Applications

• Audio volume control and tone adjustment circuits
• Programmable gain amplifier configurations
• Voltage reference trimming and calibration
• Adaptive biasing in sensor interfaces

Digital Potentiometers Procurement Notes

Verify component status as the CAT5261 series is listed as obsolete in distributor records. Confirm availability through authorized secondary market suppliers or alternative sourcing channels. Ensure the specific suffix matches the required pinout and electrical specifications for the target application design.

Digital Potentiometers Selection Notes

Select this component when dual-channel non-volatile digital potentiometry is required with high resolution (256 taps). Verify that the 100 kOhms resistance value aligns with the circuit's impedance requirements. Ensure the SPI interface compatibility matches the host microcontroller. Consider the 24-TSSOP package dimensions for PCB layout constraints.

Digital Potentiometers Part Context

This part belongs to the CAT5261 family of digital potentiometers. The 'YI' suffix indicates the 24-TSSOP package type, while '00' typically denotes the 100 kOhms resistance value. It is distinct from other variants like the CAT5251 which may offer different channel counts or resistance values.

Digital Potentiometers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, engineering change orders should be initiated to transition to a currently active digital potentiometer family with equivalent specifications.