AD5124BRUZ100-RL7

Overview

The AD5124BRUZ100-RL7 is a quad-channel, nonvolatile digital potentiometer featuring 128 tap positions and an SPI interface. It offers a nominal resistance of 100 kΩ with ±8% tolerance and a temperature coefficient of 35 ppm/°C. The device operates on a single supply from 2.3 V to 5.5 V or dual supplies up to ±2.75 V, with a logic supply range of 1.8 V to 5.5 V. Packaged in a 20-lead TSSOP, it supports wiper currents up to ±6 mA for 10 kΩ variants and ±1.5 mA for 100 kΩ versions. Key specifications include a 3 MHz bandwidth, low total harmonic distortion, and fast startup time under 75 µs.

Feature Summary

• Quad-channel architecture with 128-position resolution and nonvolatile EEPROM storage
• SPI serial interface with independent logic supply (1.8 V to 5.5 V)
• Linear gain setting mode for accurate resistor matching between terminals
• Wide operating temperature range from −40°C to +125°C

Applications

• Portable electronics level adjustment
• LCD panel brightness and contrast controls
• Programmable filters, delays, and time constants
• Programmable power supplies

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and interface compatibility. Confirm that the component meets required environmental standards such as RoHS compliance before integration into production designs.

Selection Notes

Select this model when four independent digital potentiometers are required with nonvolatile memory retention. Ensure the system design accommodates the 100 kΩ nominal resistance and the specific SPI timing requirements defined in the datasheet.

Part Context

This component belongs to the AD5124/AD5144 family of nonvolatile digital potentiometers. It shares architectural similarities with the AD5144 but provides 128 taps instead of 256. Other family members include dual-channel (AD5122) and single-channel (AD5121) variants with varying interface options.

Replacement Considerations

Direct replacements within the same package and interface include other AD5124 variants with different resistance values or suffixes. Cross-family substitution requires verifying pin compatibility and electrical parameter alignment.