AD5162BRM50-RL7

Overview

The AD5162BRM50-RL7 is a dual-channel, 8-bit digital potentiometer manufactured by Analog Devices Inc. It features two independent variable resistors with an end-to-end resistance of 50 kΩ and ±20% tolerance. Each channel provides 256 tap positions controlled via a 3-wire SPI-compatible interface (SDI, CLK, CS). The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, with a maximum supply current of 6 µA. It utilizes volatile memory for wiper settings and includes a power-on preset function that initializes the wipers to midscale. The component is housed in a compact 10-lead MSOP package.

Feature Summary

• Dual-channel architecture with 256-position adjustment per channel
• SPI-compatible 3-wire serial interface for full read/write access
• Low power consumption: 6 µA maximum supply current
• Power-on preset to midscale for fault condition recovery

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 the specific suffix RL7 corresponds to the reel packaging format required for production integration. Confirm RoHS compliance status through official documentation as specifications are subject to change without notice. Ensure the 50 kΩ resistance value matches the circuit requirements, as other values such as 2.5 kΩ, 10 kΩ, and 100 kΩ are available within the AD5162 family.

Selection Notes

Select this component when a dual-channel digital solution is required to replace mechanical potentiometers. The 50 kΩ resistance value offers a balance between noise performance and drive capability. Consider the volatile nature of the wiper register; if non-volatile storage is critical, maintain constant bias or select an alternative part. Verify that the system's SPI controller supports the required clock frequency of up to 25 MHz.

Part Context

This part belongs to the AD5162 series of dual digital potentiometers. The 'B' indicates a commercial temperature range (-40°C to +125°C), while 'RM' denotes the 10-lead MSOP package. The '50' specifies the 50 kΩ nominal resistance. The 'RL7' suffix identifies the tape and reel packaging configuration used for automated assembly.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.