AD5162BRM10

Overview

The AD5162BRM10 is a dual-channel, 8-bit digital potentiometer featuring 256 adjustable 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 an end-to-end resistance of 10 kΩ with a nominal tolerance of ±20% and a temperature coefficient of 35 ppm/°C. Wiper settings are controlled via a 3-wire SPI-compatible interface (SDI, CLK, CS). Key electrical characteristics include a typical settling time of 2 µs, wiper resistance of 160 Ω to 200 Ω, and full read/write capability for the wiper register. The component is housed in a compact 10-lead MSOP package.

Feature Summary

• Dual-channel architecture with 256 independent positions per channel
• SPI-compatible 3-wire serial interface for digital control
• Low power consumption: 6 µA maximum supply current
• Power-on preset to midscale position
• Qualified for automotive applications

Applications

• Systems calibrations
• Electronics level settings
• Mechanical trimmer replacement in new designs
• Permanent factory PCB setting
• Transducer adjustment for pressure, temperature, position, chemical, and optical sensors
• RF amplifier biasing
• Automotive electronics adjustment
• Gain control and offset adjustment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm availability and exact specifications. Check for any recent product change notices or obsolescence announcements. Ensure compatibility with required packaging formats such as tube or reel if applicable. Confirm RoHS compliance status for environmental regulations. Validate that the automotive qualification meets specific project standards.

Selection Notes

Select this component when a dual-channel digital potentiometer with SPI interface is required. The 10 kΩ resistance value suits moderate impedance applications. Consider the 20% tolerance and 35 ppm/°C temperature coefficient for accuracy requirements. The low power profile makes it suitable for battery-operated devices. Verify that the 256-position resolution meets the necessary adjustment granularity. Ensure the operating temperature range of -40°C to +125°C fits the environment.

Part Context

The AD5162 belongs to Analog Devices' family of 256-position digital potentiometers. It serves as a solid-state alternative to mechanical potentiometers, offering improved stability and programmability. The BRM10 variant specifically denotes the 10 kΩ resistance version in the MSOP-10 package. This series supports both rheostat and voltage divider modes of operation.

Replacement Considerations

Direct replacements within the same family include AD5162BRM25 (2.5 kΩ), AD5162BRM50 (50 kΩ), and AD5162BRM100 (100 kΩ) for different resistance values. For single-channel applications, consider the AD5161 series. Ensure pinout compatibility when substituting with other digital potentiometer ICs.