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MCP4651-502E/ST

MCP4651-502E/ST Description

The MCP4651-502E/ST from Microchip Technology is a dual-channel, 5kΩ digital potentiometer with 257 taps, offering precise resistance adjustment via an I2C interface. Designed for surface-mount applications, it operates within a 1.8V to 5.5V supply range, making it suitable for low-voltage systems. This volatile-memory device features a linear taper and a ±20% tolerance, with a typical wiper resistance of 75Ω. Its 150ppm/°C temperature coefficient ensures stable performance across varying environmental conditions. Packaged in a 14-TSSOP tube, it is RoHS3 compliant and REACH unaffected, meeting stringent environmental standards.

MCP4651-502E/ST Features

• Dual-channel configuration: Independent control of two potentiometers in a single package.
• I2C interface: Enables easy integration with microcontrollers and digital systems.
• Selectable address and mute function: Enhances flexibility in multi-device setups.
• Low wiper resistance (75Ω typ): Minimizes signal distortion in precision circuits.
• Wide voltage range (1.8V–5.5V): Compatible with both 3.3V and 5V systems.
• 257-tap resolution: Provides fine-grained adjustment for high-accuracy applications.
• Industrial-grade reliability: MSL 1 (unlimited) moisture sensitivity ensures robustness in harsh environments.

MCP4651-502E/ST Applications

• Audio equipment: Volume control, tone adjustment, and muting functions.
• Industrial automation: Calibration, sensor trimming, and feedback loop tuning.
• Test and measurement: Programmable resistance for automated testing setups.
• Consumer electronics: Brightness/contrast control in displays and user-adjustable settings.
• Power management: Voltage divider networks in low-power DC-DC converters.

Conclusion of MCP4651-502E/ST

The MCP4651-502E/ST stands out for its dual-channel design, high resolution, and I2C programmability, making it ideal for applications demanding precision and digital control. Its low-voltage operation and robust features cater to modern embedded systems, while its compact form factor suits space-constrained designs. Whether for audio, industrial, or consumer applications, this digital potentiometer delivers reliable performance and flexibility, backed by Microchip’s quality assurance.