AD5162BRMZ10-RL7

Overview

The AD5162BRMZ10-RL7 is a dual-channel, 8-bit digital potentiometer featuring 256 tap positions. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with a maximum supply current of 6 µA. The device provides two independent variable resistors with an end-to-end resistance of 10 kΩ and a tolerance of ±20%. Key electrical parameters include a typical wiper resistance of 160 Ω, a temperature coefficient of 35 ppm/°C for the resistor element, and a settling time of 2 µs. It utilizes a 3-wire SPI-compatible interface for full read/write access to the wiper registers.

Feature Summary

• Dual-channel architecture with 256 linear tap positions per channel
• SPI-compatible 3-wire serial interface (SDI, CLK, CS)
• Power-on preset function initializes wipers to midscale
• Volatile memory retains settings only while power is applied

Applications

• Systems calibration and permanent factory PCB setting
• Replacement for mechanical trimmers in new designs
• Transducer adjustment for pressure, temperature, and optical sensors
• RF amplifier biasing and gain control

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix 'RL7' indicates reel packaging. Check for RoHS compliance status as manufacturing processes may vary by production date. Ensure the source provides valid traceability documentation for automotive-grade qualification if required by the application.

Selection Notes

Select this model for applications requiring two independent 10 kΩ variable resistors controlled digitally. The 10 kΩ value offers a balance between noise performance and drive capability compared to higher resistance variants. Verify that the system can maintain constant bias voltage if non-volatile storage is needed, as the wiper settings are volatile. Ensure the microcontroller supports the required SPI clock frequency of up to 25 MHz.

Part Context

This component belongs to the AD5162 family of dual digital potentiometers. The 'B' designation indicates the industrial temperature range (-40°C to +125°C). The 'MZ' suffix specifies the 10-lead MSOP package. The '10' denotes the 10 kΩ nominal resistance value. The 'RL7' suffix identifies the tape and reel packaging format suitable for automated surface-mount assembly.

Replacement Considerations

The AD5161 serves as a single-channel alternative within the same family. For dual-channel requirements with different resistance values, consider the AD5162BRMZ5 (5 kΩ) or AD5162BRMZ50 (50 kΩ). No direct cross-model substitutes with identical pinouts and functions are publicly confirmed outside the AD516x series.