AD5142ABRUZ10-RL7

Overview

The AD5142ABRUZ10-RL7 is a dual-channel, nonvolatile digital potentiometer featuring 256 tap positions and an I²C interface. It offers a nominal resistance of 10 kΩ with ±8% tolerance and a temperature coefficient of 35 ppm/°C. The device supports single or dual supply operation (VDD: 2.3 V to 5.5 V; VLOGIC: 1.8 V to 5.5 V) and operates within an extended industrial temperature range of −40°C to +125°C. Key electrical characteristics include a maximum wiper current of ±6 mA for the 10 kΩ variant, a bandwidth of 3 MHz, and low power consumption with typical supply currents under 5.5 µA.

Feature Summary

• Dual-channel architecture with 256-position resolution and nonvolatile EEPROM storage for wiper settings.
• I²C-compatible serial interface supporting standard (100 kHz) and fast (400 kHz) modes.
• Linear gain setting mode via INDEP pin for independent programming of string resistances.
• Wide operating voltage range allowing single-supply (2.3 V to 5.5 V) or dual-supply (±2.25 V to ±2.75 V) configurations.

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 'RL7' corresponds to the required tape-and-reel packaging configuration as defined in the manufacturer's ordering guide. Confirm that the 'B' designation aligns with the specified 10 kΩ resistance value and linear taper requirements for the target application design.

Selection Notes

Select this component when dual-channel control with persistent memory is required. Ensure the 10 kΩ resistance value matches the circuit impedance needs, as the 100 kΩ variant exhibits lower bandwidth (0.43 MHz) and reduced maximum continuous current (±1.5 mA). Verify logic voltage compatibility between the host controller and the VLOGIC pin range.

Part Context

This part belongs to the AD5142A family, which provides dual-channel, 256-position nonvolatile digital potentiometers. The family includes variants with different resistance values (10 kΩ, 100 kΩ), interfaces (I²C, SPI), and package types (TSSOP, LFCSP). The AD5142ABRUZ10-RL7 specifically denotes the 10 kΩ, I²C version in a TSSOP-16 package supplied in reels.

Replacement Considerations

Direct functional substitutes within the same family include AD5142ABRUZ100-RL7 (100 kΩ) and AD5142BCPZ100-RL7 (SPI interface, LFCSP package). Cross-family replacements like the AD5122A series offer 128-position resolution but may not meet precision or speed requirements.