MCP4141-104E/SN

Digital Potentiometers Overview

The MCP4141-104E/SN is a single-channel, non-volatile digital potentiometer manufactured by Microchip Technology. It features a 7-bit resolution with 128 resistors and 129 steps, offering a nominal resistance (R_AB) of 100 kΩ with ±20% tolerance. The device operates on a supply voltage (V_DD) ranging from 2.7V to 5.5V and supports an SPI serial interface at frequencies up to 10 MHz. Key specifications include a typical wiper resistance (R_W) of 75 Ω, a temperature coefficient of 150 ppm/°C across the extended range (-40°C to +125°C), and WiperLock™ technology for automatic recall of saved settings.

Digital Potentiometers Feature Summary

• Non-volatile memory with WiperLock™ technology for automatic wiper setting recall upon power-up.
• 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 network terminal disconnect feature via SHDN pin or TCON register.

Digital Potentiometers Applications

• Audio volume control and tone adjustment circuits.
• Motor drive and industrial process control systems.
• Programmable gain amplifiers and sensor signal conditioning.
• Power management and battery charging regulation.

Digital Potentiometers Procurement Notes

Verify the specific suffix 'SN' corresponds to the SOIC-8 narrow package when sourcing. Confirm that the '-104' designation matches the required 100 kΩ resistance value for the application. Ensure the operating environment stays within the specified -40°C to +125°C temperature range to maintain parameter accuracy.

Digital Potentiometers Selection Notes

Select this component if a single-channel, non-volatile digital potentiometer with high-voltage tolerant inputs is required. The 100 kΩ resistance value suits applications needing higher impedance levels compared to the 5 kΩ or 10 kΩ variants. Consider the 7-bit resolution (129 steps) as sufficient for coarse adjustments but potentially limiting for high-precision linearization tasks requiring 8-bit resolution.

Digital Potentiometers Part Context

This part belongs to the MCP41XX family of single-potentiometer devices. It shares the same package and interface characteristics as volatile counterparts like the MCP4131 but adds non-volatile EEPROM storage. The 'E' suffix indicates an extended temperature range capability, while 'SN' denotes the SOIC-8 package type.

Digital Potentiometers Replacement Considerations

For direct functional replacement with non-volatile memory, consider the MCP4161-104E/SN, which offers 8-bit resolution (257 steps) in the same package. For volatile-only applications where cost reduction is prioritized, the MCP4131-104E/SN serves as a compatible alternative without EEPROM functionality.