MCP4162-103E/MF

Digital Potentiometers Overview

The MCP4162-103E/MF is a single-channel digital potentiometer featuring non-volatile memory and an SPI serial interface. It provides 8-bit resolution with 257 taps and a nominal resistance of 10 kΩ. The device operates within a supply voltage range of 2.7V to 5.5V, supporting full-scale wiper operation from zero to VDD. Key features include WiperLock™ technology for secure calibration settings, high-voltage tolerant digital inputs up to 12.5V, and a shutdown pin for terminal disconnect. It is housed in an 8-lead MSOP package.

Digital Potentiometers Feature Summary

• Non-volatile memory with automatic recall of saved wiper settings upon power-up
• SPI serial interface operating at frequencies up to 10 MHz (modes 0,0 & 1,1)
• High-voltage tolerant digital inputs allowing compatibility with 5V logic while analog rails operate lower
• WiperLock™ Technology enables hardware or software write protection for EEPROM data

Digital Potentiometers Applications

• Industrial process control systems requiring precise gain adjustment
• Audio equipment for volume control and tone shaping
• Test and measurement instruments needing programmable attenuation
• Power supply voltage reference trimming

Digital Potentiometers Procurement Notes

Verify the specific suffix 'MF' corresponds to the MSOP-8 package variant when sourcing. Confirm that the application environment remains within the specified -40°C to +125°C temperature range. Ensure the SPI bus voltage levels are compatible with the device's high-voltage tolerant inputs if interfacing with higher voltage controllers.

Digital Potentiometers Selection Notes

Select this model for applications requiring persistent resistance settings without external battery backup. The 10 kΩ value suits moderate current loads; use 5 kΩ variants for lower impedance needs. Verify that the 8-bit resolution meets the required step precision. Consider the MCP4161 if potentiometer configuration is preferred over rheostat mode.

Digital Potentiometers Part Context

This component belongs to the MCP414X/416X family of single/dual SPI digital potentiometers with non-volatile memory. The '62' designation indicates a single rheostat configuration with 8-bit resolution. It shares architectural similarities with volatile counterparts like the MCP4152 but adds EEPROM storage capabilities for power-down retention.

Digital Potentiometers Replacement Considerations

Direct functional substitutes include other Microchip devices from the same datasheet family, such as the MCP4161-103E/MF (potentiometer version) or MCP4262-103E/MF (dual channel). Cross-manufacturer replacements require verification of SPI protocol compatibility and pinout alignment.