AD5162BRMZ2.5-RL7

Overview

The AD5162BRMZ2.5-RL7 is a dual-channel, 8-bit digital potentiometer with 256 tap positions and a nominal end-to-end resistance of 2.5 kΩ. It operates on a single supply voltage ranging from 2.7 V to 5.5 V, consuming a maximum supply current of 6 µA. The device features volatile wiper memory controlled via an SPI-compatible interface (SDI, CLK, CS). Key electrical characteristics include a temperature coefficient of 35 ppm/°C, a typical power-on preset to midscale, and a settling time of 1 µs. It is housed in a compact 10-lead MSOP package.

Feature Summary

• Dual-channel architecture with 256-position adjustment capability
• SPI-compatible 3-wire serial interface for full read/write access
• Low power consumption with 6 µA maximum supply current
• Power-on preset function initializes wipers to midscale

Applications

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

Procurement Notes

Verify the specific suffix 'RL7' against the manufacturer's ordering guide to confirm tape-and-reel packaging details. Confirm RoHS compliance status as specifications may vary by manufacturing revision. Ensure the 2.5 kΩ resistance value matches the circuit requirements, as other variants exist within the AD5162 family.

Selection Notes

Select this component when a dual-channel digital solution is required with low power constraints. The 2.5 kΩ resistance value is suitable for applications requiring lower impedance compared to the 10 kΩ or 100 kΩ variants. Verify that the system can tolerate volatile memory loss upon power removal, as the device lacks non-volatile storage.

Part Context

This part belongs to the AD5162 series of dual, 256-position digital potentiometers manufactured by Analog Devices. The series offers various resistance values including 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ. The BRMZ variant indicates industrial temperature range performance (-40°C to +125°C) and surface mount packaging.

Replacement Considerations

The AD5162BRM2.5-RL7 is a direct replacement for earlier revisions of the AD5162BRM2.5-RL7. For single-channel applications, the AD5161 series may be considered if only one potentiometer channel is needed.