MCP4162-503E/MF

Digital Potentiometers Overview

The MCP4162-503E/MF is a single-channel digital potentiometer IC featuring non-volatile memory and an SPI serial interface. It provides 8-bit resolution with 256 taps and a nominal resistance of 50 kΩ (suffix -503). The device operates within a supply voltage range of 2.7V to 5.5V, supporting extended industrial temperatures from -40°C to +125°C. Key features include WiperLock™ technology for secure calibration settings, high-voltage tolerant digital inputs up to 12.5V, and a typical wiper resistance of 75Ω.

Digital Potentiometers Feature Summary

• Non-volatile EEPROM memory retains wiper settings across power cycles using WiperLock™ technology.
• SPI serial interface supports clock frequencies up to 10 MHz in modes 0,0 and 1,1.
• High-voltage tolerant digital inputs allow operation with logic levels up to 12.5V.
• Configurable as a rheostat or potentiometer with linear taper and ±20% resistance tolerance.

Digital Potentiometers Applications

• Calibration storage for application-specific settings requiring power-down retention.
• Variable gain control in signal conditioning circuits.
• Voltage reference adjustment in measurement systems.
• Digital trimming of analog circuit parameters.

Digital Potentiometers Procurement Notes

Verify the ordering suffix 'MF' corresponds to the DFN-8 package (3x3 mm) with an exposed thermal pad. Confirm the '-503' suffix indicates the 50 kΩ resistance value. Ensure the component meets RoHS compliance requirements for the specific manufacturing batch.

Digital Potentiometers Selection Notes

Select this model for applications requiring persistent resistance settings without external battery backup. The 50 kΩ value suits moderate impedance circuits. Consider the DFN-8 package for space-constrained PCB layouts. Verify that the 10 MHz SPI speed requirement is compatible with the host microcontroller's capabilities.

Digital Potentiometers Part Context

This part belongs to the MCP41XX series of single-channel digital potentiometers. It shares architectural similarities with volatile counterparts like the MCP4152 but adds EEPROM for data retention. The 'X2' designation indicates a rheostat configuration, while 'X1' variants offer potentiometer functionality with multiplexed SDI/SDO pins.

Digital Potentiometers Replacement Considerations

For direct pin-compatible replacements with identical specifications, consider the MCP4162T-503E/MF (tape and reel version). For volatile-only alternatives, the MCP4152-503E/MF offers similar electrical characteristics but lacks non-volatile memory retention.