AD5142ABRUZ100

Overview

The AD5142ABRUZ100 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 dual supplies up 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, and low power consumption with 700 nA typical supply current at 5.5 V. It is housed in a 16-lead TSSOP 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 voltage range: 2.3 V to 5.5 V single supply or ±2.25 V to ±2.75 V dual supply.
• Extended industrial 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

Procurement Notes

Verify the specific suffix RUZ indicates the 16-lead TSSOP package and B grade tolerance. Confirm the 100 resistor value via the datasheet ordering guide. Check for automotive qualification requirements if applicable to the end application.

Selection Notes

Select this model for applications requiring precise, nonvolatile analog control via I2C. Ensure the 100 kΩ resistance and ±1.5 mA current limit meet circuit demands. Consider the INDEP pin functionality for linear gain setting mode needs during power-up.

Part Context

Part of the AD5142A family, which includes quad-channel variants (AD5143/AD5144). The AD5142A specifically provides two independent digital potentiometers in a compact footprint, suitable for space-constrained designs requiring dual-channel adjustment.

Replacement Considerations

AD5142BRUZ100 is a direct functional substitute within the same package and specification profile. Verify that any replacement maintains the I2C interface and nonvolatile memory characteristics required by the design.