AD5162BRMZ50-RL7

Overview

The AD5162BRMZ50-RL7 is a dual-channel, 8-bit digital potentiometer from Analog Devices. It features two independent variable resistors with 256 tap positions and a nominal end-to-end resistance of 50 kΩ. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, consuming a maximum supply current of 6 µA. It utilizes a standard SPI-compatible 3-wire serial interface for control. The unit is housed in a compact 10-lead MSOP package (3 mm × 4.9 mm) and supports an operating temperature range from −40°C to +125°C.

Feature Summary

• Dual-channel architecture providing two independent 256-position digital potentiometers in a single package.
• SPI-compatible 3-wire serial interface (SDI, CLK, CS) for full read/write access to wiper registers.
• Low power consumption with a maximum supply current of 6 µA at 5 V, suitable for battery-operated systems.
• Power-on preset function automatically sets the wiper to midscale upon initialization.

Applications

• Systems calibration and permanent factory PCB setting.
• Replacement for mechanical trimmers in new designs.
• Gain control and offset adjustment in signal conditioning circuits.
• RF amplifier biasing and transducer adjustment for pressure or temperature sensors.

Procurement Notes

Verify the specific suffix RL7 corresponds to the required reel packaging configuration. Confirm that the BRMZ variant meets the necessary automotive qualification standards if applicable to the design. Ensure the 50 kΩ resistance value aligns with the circuit requirements before ordering.

Selection Notes

Select this component when dual-channel adjustment is required within a compact footprint. The 50 kΩ resistance value offers a balance between noise performance and drive capability. Consider the volatile memory nature of the wiper settings; if non-volatility is critical without external memory, maintain constant bias or select an EEPROM-based alternative.

Part Context

This part belongs to the AD5162 family of dual digital potentiometers. The 'B' indicates a ±20% resistor tolerance, while 'MZ' denotes the 10-lead MSOP package. The '50' specifies the 50 kΩ nominal resistance, and 'RL7' identifies the tape and reel packaging format for automated assembly.

Replacement Considerations

The AD5161 is a single-channel equivalent with identical electrical characteristics and pinout compatibility for one channel. For applications requiring I2C communication instead of SPI, the AD5243 series serves as a functional alternative with similar resistance and package options.