MCP4162-502E/MF

Digital Potentiometers Overview

The MCP4162-502E/MF is a single-channel, non-volatile digital rheostat manufactured by Microchip Technology. It features an 8-bit resolution providing 257 discrete taps and a nominal resistance (R_AB) of 5 kΩ with ±20% tolerance. The device operates on a supply voltage range of 2.7V to 5.5V for specified characteristics, supporting serial down to 1.8V for interface only. It utilizes a high-speed SPI interface operating up to 10 MHz and includes WiperLock™ technology for secure calibration storage in Data EEPROM. The component is housed in a DFN-8-EP (3x3 mm) package and supports an extended industrial temperature range from -40°C to +125°C.

Digital Potentiometers Feature Summary

• Non-volatile memory with WiperLock™ technology for automatic recall of saved wiper settings.
• SPI serial interface supporting 10 MHz operation in modes 0,0 and 1,1.
• High-voltage tolerant digital inputs capable of withstanding up to 12.5V.
• Resistor terminal disconnect feature via Shutdown pin or Terminal Control register.

Digital Potentiometers Applications

• Industrial process control systems requiring precise analog signal adjustment.
• Portable battery-powered equipment utilizing low standby current.
• Audio volume control applications leveraging linear taper characteristics.
• Calibration circuits securing specific gain or offset values via EEPROM.

Digital Potentiometers Procurement Notes

Verify the ordering suffix 'MF' corresponds to the DFN-8-EP (3x3 mm) package configuration as defined in the datasheet. Confirm that the '-502' designation matches the required 5 kΩ resistance value for the specific application circuit design.

Digital Potentiometers Selection Notes

Select this model for single-rheostat configurations requiring non-volatile retention. Ensure the system logic levels are compatible with the 10 MHz SPI interface. Verify that the 5 kΩ resistance aligns with the target impedance requirements, noting the ±20% tolerance specification.

Digital Potentiometers Part Context

This component belongs to the MCP414X/416X family of single/dual SPI digital potentiometers with non-volatile memory. The MCP4162 specifically denotes the single rheostat variant within this series, distinguished from potentiometer versions by its two-terminal resistor network configuration.

Digital Potentiometers Replacement Considerations

Direct replacements include other MCP4162 variants with different packages such as MCP4162-502E/SN (SOIC-8) or MCP4162-502E/MS (MSOP-8). Cross-family substitution with MCP4142 requires verification of volatile versus non-volatile memory differences.