AD5241BRZ100

Digital Potentiometers Overview

The AD5241BRZ100 is a single-channel, 8-bit digital potentiometer from Analog Devices with a nominal resistance of 100 kΩ. It features 256 tap positions and operates on a single supply voltage ranging from 2.7 V to 5.5 V or dual supplies of ±2.7 V. The device utilizes an I2C-compatible serial interface for programming the wiper position and includes readback capability. Key electrical parameters include a temperature coefficient of 30 ppm/°C, a maximum wiper resistance of 120 Ω, and an operating temperature range of −40°C to +105°C. It is housed in a 14-lead SOIC package.

Digital Potentiometers Feature Summary

• Single-channel 8-bit resolution with 256 programmable tap positions
• I2C-compatible serial interface with target address decoding via AD0/AD1 pins
• Internal power-on midscale preset and self-contained shutdown feature
• Two additional programmable logic outputs (O1, O2) for driving digital loads

Digital Potentiometers Applications

• Mechanical potentiometer replacement in embedded systems
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion circuits
• Line impedance matching in communication interfaces

Digital Potentiometers Procurement Notes

Verify the specific suffix 'BRZ' indicates the 100 kΩ resistance value and SOIC-14 package configuration. Confirm that the 'B' grade meets the required tolerance specifications, which are -30% to +50% for the 100 kΩ variant at 25°C. Ensure the source documentation matches Rev. F of the datasheet for accurate timing and electrical characteristics.

Digital Potentiometers Selection Notes

Select this component when a single-channel digitally controlled variable resistor is required with I2C connectivity. The 100 kΩ nominal resistance is suitable for applications requiring higher impedance levels compared to the 10 kΩ variant. Consider the 120 Ω maximum wiper resistance for low-voltage drop requirements. The extended temperature range supports operation in harsh industrial environments.

Digital Potentiometers Part Context

The AD5241 belongs to the AD5241/AD5242 family of I2C-compatible digital potentiometers. While the AD5242 offers dual channels, the AD5241 provides a single channel in a compact footprint. This family replaces mechanical potentiometers in applications requiring remote or automated resistance adjustment without physical user interaction.

Digital Potentiometers Replacement Considerations

Direct pin-for-pin replacements within the same family include other resistance variants such as AD5241BRUZ10 (10 kΩ) or AD5241BRZ1M (1 MΩ), provided the package type (SOIC vs TSSOP) and resistance values align with the circuit design requirements.