MCP4441-103E/ML

Digital Potentiometers Overview

The MCP4441-103E/ML is a quad digital potentiometer IC featuring four independent potentiometer networks with I2C serial interface control. It utilizes nonvolatile memory to retain wiper settings, offering 7-bit resolution with 129 taps per channel. The device supports an R_AB resistance of 10 kΩ and operates within a supply voltage range of 2.7V to 5.5V. Key features include WiperLock technology for hardware protection, high-voltage tolerant inputs up to 12.5V, and terminal disconnect capabilities via the TCON register. It is housed in a 20-pin QFN package.

Digital Potentiometers Feature Summary

• Quad Resistor Network: Four independent potentiometer channels with 7-bit (129 tap) resolution.
• Nonvolatile Memory: Retains wiper settings using EEPROM with WiperLock™ Technology and five general-purpose memory locations.
• High-Voltage Inputs: Digital inputs (HVC/A0, SDA, SCL, etc.) tolerate voltages up to 12.5V.
• I2C Interface: Supports Standard Mode (100 kHz), Fast Mode (400 kHz), and High-Speed modes (up to 3.4 MHz).

Digital Potentiometers Applications

• Audio volume control and tone adjustment circuits
• Programmable gain amplifiers and sensor biasing
• Voltage reference trimming and calibration systems

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix 'ML' corresponds to the 4x4 QFN-20 package as documented in the datasheet. Confirm that the application environment remains within the specified operating temperature range of -40°C to +125°C. Ensure the I2C bus voltage levels are compatible with the device's high-voltage tolerant input specifications if interfacing with higher voltage logic.

Digital Potentiometers Selection Notes

Select this component when four isolated digital potentiometers with persistent settings are required. The 10kΩ resistance value suits moderate impedance applications. Consider the MCP4461-103E/ML if 8-bit (257 tap) resolution is necessary instead of the 7-bit resolution provided by the MCP4441 series.

Digital Potentiometers Part Context

This part belongs to the MCP444X/446X family of quad digital potentiometers manufactured by Microchip Technology. The '44' prefix indicates the 7-bit nonvolatile variant, while '1' denotes the potentiometer configuration. It serves as a solid-state replacement for mechanical potentiometers in space-constrained designs requiring programmable resistance.

Digital Potentiometers Replacement Considerations

The MCP4461-103E/ML is a direct pin-compatible upgrade offering 8-bit resolution. For rheostat configurations, the MCP4442-103E/ML provides the same nonvolatile features but configured as variable resistors.