MCP4162-503E/P

Digital Potentiometers Overview

The MCP4162-503E/P is a single-channel digital potentiometer IC manufactured by Microchip Technology, housed in an 8-pin PDIP package. It features non-volatile memory and WiperLock™ technology to retain calibration settings. The device operates with a supply voltage range of 2.7V to 5.5V for full specifications, supporting serial interface operation down to 1.8V. It utilizes a standard SPI interface (modes 0,0 and 1,1) with a maximum clock frequency of 10 MHz. Key electrical parameters include a nominal resistance (R_AB) of 50 kΩ with a ±20% tolerance, 256 taps providing 257 steps, and a typical wiper resistance of 75 Ω.

Digital Potentiometers Feature Summary

• Non-volatile memory with WiperLock™ technology for secure calibration retention
• SPI serial interface supporting high-speed read/write operations up to 10 MHz
• High-voltage tolerant digital inputs capable of withstanding up to 12.5V
• Resistor network terminal disconnect feature via SHDN pin or TCON register

Digital Potentiometers Applications

• Industrial process control systems requiring precise analog adjustment
• Audio equipment for gain and volume control applications
• Instrumentation circuits needing programmable resistance tuning
• Automotive electronics operating within extended temperature ranges

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix 'P' corresponds to the PDIP-8 through-hole package configuration. Confirm that the '-503' designation matches the required 50 kΩ resistance value for the application circuit. Ensure compatibility with the system's SPI protocol modes and voltage levels before integration.

Digital Potentiometers Selection Notes

Select this component when a single rheostat configuration with non-volatile storage is required. The 50 kΩ resistance value suits moderate impedance applications. Consider the 8-bit resolution (256 taps) for sufficient granularity. Verify that the 12.5V input tolerance on control pins aligns with the host controller's logic levels.

Digital Potentiometers Part Context

This part belongs to the MCP41XX series of single resistor network digital potentiometers. It shares architectural similarities with volatile counterparts like the MCP4152 but distinguishes itself through integrated EEPROM for persistent state retention. The device is part of a broader family including dual-channel variants and different resistance options.

Digital Potentiometers Replacement Considerations

Direct functional substitutes within the same family include the MCP4161 if a potentiometer configuration is acceptable instead of a rheostat. For volatile memory requirements, the MCP4152 offers similar electrical characteristics without non-volatile storage capabilities.