MCP42U83T-502E/7N

Digital Potentiometers Overview

The MCP42U83T-502E/7N is a dual-channel digital potentiometer IC manufactured by Microchip Technology. It features two independent 10-bit wiper positions, providing 1024 distinct resistance steps per channel. The device supports a linear taper and offers a total of 100 kOhms resistance between terminals. It operates within a supply voltage range of 2.7V to 5.5V and includes both volatile and non-volatile memory for wiper position storage. The component utilizes an SPI digital interface for control and communication.

Digital Potentiometers Feature Summary

• Dual-channel architecture with independent 10-bit control
• Non-volatile memory retains wiper settings without power
• Linear resistance taper for precise adjustment
• SPI serial interface for digital control

Digital Potentiometers Applications

• Audio volume and tone control circuits
• Programmable gain amplifier configurations
• Voltage reference adjustment systems
• Sensor calibration and offset trimming

Digital Potentiometers Procurement Notes

Verify the package designation matches the required footprint, as suffixes indicate specific housing types. Confirm the resistance value code corresponds to the intended circuit requirements. Ensure the operating temperature range aligns with the environmental conditions of the final assembly. Check for any specific ordering suffixes that may affect availability or lead times.

Digital Potentiometers Selection Notes

Select this component when dual-channel precision is required with persistent state retention. The 10-bit resolution provides finer control compared to 8-bit alternatives. Consider the SPI interface compatibility with the host microcontroller. Evaluate the power consumption requirements against the low standby current specifications available in similar devices.

Digital Potentiometers Part Context

This part belongs to the MCP42Uxx family of digital potentiometers from Microchip Technology. It shares functional similarities with single-channel variants like the MCP41U83 but adds a second independent channel. The 'U' designation typically indicates ultra-low power characteristics within the product line. It serves as a solid-state replacement for mechanical potentiometers in space-constrained designs.

Digital Potentiometers Replacement Considerations

• MCP42U83T-502E/ST
• MCP42U83T-502E/UN

Digital Potentiometers FAQ

What is the resolution of the wiper position?

The device provides 10-bit resolution, resulting in 1024 discrete tap positions per channel.

Does the device retain its setting after power loss?

Yes, it includes non-volatile memory that stores the wiper position data even when power is removed.