DS3501U+

Digital Potentiometers Overview

The DS3501U+ is a high-voltage, nonvolatile digital potentiometer featuring an I2C-compatible serial interface. It provides 128 wiper tap points with a full-scale resistance of 10kΩ and supports analog operating voltages up to 15.5V. The device integrates an on-chip temperature sensor and ADC that drive a 36-byte nonvolatile lookup table (LUT). This architecture enables temperature-compensated outputs with arbitrary slope characteristics. Digital logic operates between 2.7V and 5.5V, while the component functions within a temperature range of -40°C to +100°C in a 10-pin μSOP package.

Digital Potentiometers Feature Summary

• 128-tap nonvolatile digital potentiometer with 10kΩ resistance
• Integrated temperature sensor and 36-byte LUT for compensation
• I2C interface supporting up to 400kHz clock speeds
• High-voltage capability with V+ range of 4.5V to 15.5V

Digital Potentiometers Applications

• TFT-LCD VCOM calibration
• Linear and nonlinear circuit compensation
• Mechanical potentiometer replacement in industrial controls
• Optical transceiver biasing adjustments

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix when sourcing components. The base model DS3501U+ indicates a tube package, whereas the T&R suffix denotes tape-and-reel packaging. Confirm that the required package format aligns with manufacturing assembly processes before procurement.

Digital Potentiometers Selection Notes

Select this component for applications requiring high-voltage adjustment up to 15.5V via a standard two-wire serial bus. The integrated temperature sensor and lookup table are suitable for designs needing automatic thermal compensation without external microcontroller intervention. Ensure the system voltage remains within the specified 2.7V to 5.5V digital supply range.

Digital Potentiometers Part Context

This part belongs to the DS3501 series of high-voltage digital potentiometers manufactured by Analog Devices/Maxim Integrated. It serves as a direct pin and software compatible replacement for the ISL95311 in default mode configurations. The series is designed for precision analog control in environments where mechanical potentiometers are impractical.

Digital Potentiometers Replacement Considerations

The DS3501U+ is functionally compatible with the ISL95311 when operated in Default Mode. Verify that the replacement device supports the required I2C address configuration and that the 10-pin μSOP footprint matches the existing PCB layout constraints.