AD5242BRUZ10-RL7

Digital Potentiometers Overview

The AD5242BRUZ10-RL7 is a dual-channel, 8-bit digital potentiometer manufactured by Analog Devices Inc. It provides two independent variable resistors with 256 programmable positions and a nominal end-to-end resistance of 10 kΩ. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V or dual supplies of ±2.7 V. It features an I²C-compatible serial interface for wiper position control and includes two additional programmable logic outputs (O1, O2). Key electrical specifications include a maximum differential nonlinearity of ±1 LSB, a nominal temperature coefficient of 30 ppm/°C, and a typical wiper resistance of 120 Ω. The component is housed in a 14-lead TSSOP package and supports an extended operating temperature range from −40°C to +105°C.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 256-position resolution and 1% channel-to-channel matching tolerance.
• I²C-compatible 2-wire serial interface with readback capability and four selectable target addresses via AD0/AD1 pins.
• Internal power-on midscale preset ensures defined initial state upon system startup.
• Integrated shutdown feature minimizes power consumption by connecting the wiper to Terminal B and opening Terminal A.

Digital Potentiometers Applications

• Multimedia, video, and audio signal processing.
• Instrumentation gain and offset adjustment circuits.
• Mechanical potentiometer replacement in embedded systems.
• Programmable voltage-to-current conversion stages.

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix RL7 confirms the reel packaging format required for automated assembly processes. Ensure the BRU variant corresponds to the 14-lead TSSOP package geometry suitable for the target PCB footprint. Confirm that the '10' designation matches the required 10 kΩ nominal resistance value for the application circuit design.

Digital Potentiometers Selection Notes

Select this model when dual-channel resistance control is required within a compact surface-mount footprint. The 10 kΩ resistance value offers a balance between bandwidth performance and power dissipation. Verify that the system voltage falls within the 2.7 V to 5.5 V range. Consider the 30 ppm/°C temperature coefficient if high precision over wide thermal variations is necessary compared to higher-grade alternatives.

Digital Potentiometers Part Context

This component belongs to the AD5241/AD5242 family of I²C-compatible digital potentiometers. The AD5242 specifically denotes the dual-channel version, whereas the AD5241 is single-channel. Both share identical pinouts for their respective channel counts and utilize the same I²C protocol and register map, allowing for firmware compatibility across the series.

Digital Potentiometers Replacement Considerations

The AD5242BRZ10 is a direct equivalent in the SOIC-14 package. For TSSOP-14 replacements, verify pinout compatibility with other dual-channel digital potentiometers supporting I²C interfaces. Ensure substitute parts maintain the 256-position resolution and similar wiper resistance characteristics to preserve circuit timing and accuracy.