AD5124BCPZ100-RL7

Overview

The AD5124BCPZ100-RL7 is a quad-channel, nonvolatile digital potentiometer from Analog Devices. It features 128 tap positions and supports SPI or I2C interfaces. The device offers 10 kΩ and 100 kΩ resistance options with an 8% maximum tolerance. Key electrical parameters include a ±6 mA wiper current, 3 MHz bandwidth, and operation over a −40°C to +125°C temperature range. Power supply ranges are 2.3 V to 5.5 V for analog supplies and 1.8 V to 5.5 V for logic.

Feature Summary

• Quad-channel architecture with 128-position resolution
• Nonvolatile memory retains settings across power cycles
• SPI/I2C compatible digital interface for control
• Low temperature coefficient of 35 ppm/°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 package type (TSSOP or LFCSP) and interface configuration against the datasheet, as suffixes determine physical form factor and communication protocol. Confirm availability through authorized distributors, as stock levels fluctuate. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS structure.

Selection Notes

Select this component when multiple independent digital potentiometers are required in a single package. Choose the 100 kΩ variant if higher impedance is needed for low-power applications. Verify that the system voltage falls within the 2.3 V to 5.5 V range. Consider the linear gain setting mode for precise resistor matching requirements in open-loop applications.

Part Context

This part belongs to the AD5124/AD5144 family of nonvolatile digital potentiometers. The AD5124 specifically provides 128 positions, whereas the AD5144 offers 256 positions. Both share similar electrical characteristics but differ in resolution. The family supports both SPI and I2C interfaces depending on the specific model suffix and package type.

Replacement Considerations

Direct replacements include other models within the AD5124/AD5144 family, such as the AD5144 for increased resolution. Cross-family alternatives like the AD52xx series may require interface adaptation. Verify pin compatibility and EEPROM retention requirements before substitution.