AD5142ABCPZ100-RL7

Overview

The AD5142ABCPZ100-RL7 is a dual-channel, nonvolatile digital potentiometer featuring 256 tap positions and an I2C 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 a dual supply of ±2.25 V to ±2.75 V, with a logic supply range of 1.8 V to 5.5 V. Key electrical parameters include a maximum wiper current of ±1.5 mA for the 100 kΩ variant, a bandwidth of 0.43 MHz at 100 kΩ, and a settling time of 12 µs. It is housed in a 16-lead LFCSP package.

Feature Summary

• Dual-channel architecture with 256-position resolution and nonvolatile EEPROM storage
• I2C-compatible serial interface supporting standard (100 kHz) and fast (400 kHz) modes
• Wide operating temperature range from −40°C to +125°C
• Linear gain setting mode via INDEP pin for independent string resistor programming

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 suffix 'BCPZ' against official documentation to confirm the package type and tape/reel configuration. Confirm that the 'A' designation aligns with the required voltage and performance specifications for the target application environment.

Selection Notes

Select this component when a dual-channel solution with nonvolatile memory and I2C control is required. Ensure the 100 kΩ resistance value matches the circuit design, as the maximum continuous current is limited to ±1.5 mA. Verify that the system logic levels are compatible with the 1.8 V to 5.5 V VLOGIC range.

Part Context

This part belongs to the AD5142A family, which provides dual-channel, 256-position digital potentiometers. The family includes variants with SPI interfaces (AD5142) and different resistance values. The AD5142A specifically utilizes an I2C interface for digital control and data storage.

Replacement Considerations

The AD5142BRUZ100 serves as a functional replacement if an SPI interface is acceptable instead of I2C. For applications requiring quad channels, the AD5144 series may be considered, though interface and pinout differences must be evaluated.