MCP4141T-503E/MS

Digital Potentiometers Overview

The MCP4141T-503E/MS is a single-channel digital potentiometer IC from Microchip Technology, featuring 50 kΩ end-to-end resistance and 128 discrete taps. It operates on an SPI serial interface with a supply voltage range of 2.7V to 5.5V. The device incorporates non-volatile memory for wiper settings and supports WiperLock™ technology. It includes high-voltage tolerant digital inputs up to 12.5V, hardware write protection, and terminal disconnect features via a shutdown pin or register control.

Digital Potentiometers Feature Summary

• Non-volatile memory with automatic recall of saved wiper settings
• SPI serial interface supporting modes 0,0 and 1,1 at up to 10 MHz
• High-voltage tolerant digital inputs (up to 12.5V)
• WiperLock™ technology for calibration security

Digital Potentiometers Applications

• Factory calibration and system trimming
• Gain adjustment in instrumentation circuits
• Volume control in audio systems
• Voltage reference adjustment

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix 'T' indicates tape-and-reel packaging and '/MS' denotes the MSOP-8 package. Confirm the '-503' code corresponds to the 50 kΩ resistance value. Ensure compatibility with the required operating temperature range of -40°C to +125°C for the intended application environment.

Digital Potentiometers Selection Notes

Select this component when a single-channel digital potentiometer with non-volatile storage is required. The 50 kΩ resistance value suits moderate impedance applications. Verify that the SPI interface timing requirements align with the host microcontroller's capabilities, particularly regarding the 10 MHz maximum clock speed at VDD ≥ 2.7V.

Digital Potentiometers Part Context

This part belongs to the MCP414X family of 7-bit single/dual SPI digital potentiometers with non-volatile memory. It shares architectural similarities with volatile counterparts like the MCP4131 but adds EEPROM storage. The 'T' suffix differentiates it from tube-packaged versions, while '/MS' specifies the surface-mount MSOP-8 package format.

Digital Potentiometers Replacement Considerations

Direct functional replacements within the same family include MCP4141-503E/SN (SOIC-8) or MCP4141-503E/P (PDIP-8). For volatile-only applications, the MCP4131T-503E/MS offers similar electrical characteristics without non-volatile memory. Ensure pinout compatibility when substituting packages.