Microchip Technology

MCP4232-503E/UN  

Digital Potentiometers

MCP4232-503E/UN Description

The MCP4232-503E/UN from Microchip Technology is a dual-channel, 50kΩ digital potentiometer configured as a rheostat, offering 129 taps for precise resistance adjustment. Designed for surface-mount applications, it operates over a 1.8V to 5.5V supply range, making it versatile for low-voltage and portable electronics. With a volatile memory type, it requires reinitialization on power-up but ensures dynamic recalibration during operation. The device features an SPI interface for seamless digital control, enabling integration into microcontroller-based systems. Its ±20% tolerance and 150ppm/°C temperature coefficient balance cost and performance, while the 75Ω typical wiper resistance minimizes signal distortion. Packaged in a 10MSOP tube, it is ROHS3 compliant and REACH unaffected, meeting stringent environmental standards.

MCP4232-503E/UN Features

• Dual-channel rheostat with 50kΩ resistance and 129-tap resolution for fine-grained adjustment.
• Wide voltage range (1.8V–5.5V): Compatible with 3.3V and 5V systems.
• SPI interface: Enables fast, daisy-chainable communication with microcontrollers.
• Low wiper resistance (75Ω typ): Reduces voltage drop and signal attenuation.
• Linear taper: Ideal for linear control applications like gain adjustment or calibration.
• Volatile memory: Simplifies design by eliminating non-volatile storage overhead.
• Industrial robustness: MSL 1 (unlimited) moisture sensitivity and -40°C to +125°C operating range.

MCP4232-503E/UN Applications

• Analog signal conditioning: Adjustable gain/offset in op-amp circuits.
• Portable electronics: Battery-powered devices requiring low-voltage operation.
• Industrial control systems: Calibration of sensors or actuators via digital interfaces.
• Audio equipment: Volume control or tone adjustment with minimal distortion.
• Automotive electronics: Resilient performance in harsh environments.

Conclusion of MCP4232-503E/UN

The MCP4232-503E/UN stands out for its dual-channel flexibility, SPI compatibility, and wide voltage range, making it a cost-effective solution for dynamic resistance tuning. Its low wiper resistance and linear taper cater to precision applications, while the surface-mount package ensures compact integration. Ideal for portable, industrial, and audio systems, this digital potentiometer balances performance and simplicity, backed by Microchip’s reliability.

MCP4232-503E/UN Documents

Download datasheets and manufacturer documentation for MCP4232-503E/UN

Datasheets :

MCP413x,415x,423x,425x      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

Design Resources :

MCP4232 Development Tool Selector      

HTML Datasheet :

MCP413x,415x,423x,425x      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH