AD5162BRMZ10

Overview

The AD5162BRMZ10 is a dual-channel, 8-bit SPI digital potentiometer from Analog Devices. It features two independent 256-position variable resistors with an end-to-end resistance of 10 kΩ and a linear taper. 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 compact 10-lead MSOP package (3 mm × 4.9 mm) and supports full read/write access to the wiper register via a standard SPI interface. The unit includes a power-on preset to midscale and is qualified for automotive applications.

Feature Summary

• Dual-channel architecture with 256 tap positions per channel
• 10 kΩ nominal end-to-end resistance with ±20% tolerance
• SPI-compatible 3-wire serial interface (SDI, CLK, CS)
• Low power consumption: 6 µA maximum at 5 V
• Wide operating temperature range: −40°C to +125°C

Applications

• Systems calibrations and electronics level settings
• Replacement for mechanical trimmers in new designs
• Transducer adjustment for pressure, temperature, and optical sensors
• RF amplifier biasing and gain control
• Automotive electronics adjustment

Procurement Notes

Verify the specific suffix 'MZ' confirms the MSOP-10 surface-mount package and '10' denotes the 10 kΩ resistance value. Confirm RoHS compliance status as specifications may vary by manufacturing revision. Ensure the source document matches Rev. C or later for accurate electrical characteristics regarding settling time and nonlinearity.

Selection Notes

Select this component when a dual-channel digital potentiometer is required with a 10 kΩ resistance range. The 8-bit resolution provides 256 discrete steps suitable for precision calibration. Verify that the system can support the SPI communication protocol and that the 2.7 V to 5.5 V supply range aligns with the target application's power constraints.

Part Context

The AD5162 belongs to the AD5162 family of dual 256-position SPI digital potentiometers. Variants within this series differ primarily in end-to-end resistance values, including 2.5 kΩ, 50 kΩ, and 100 kΩ options. The BRM designation typically indicates industrial temperature grade and specific packaging configurations within the Analog Devices portfolio.

Replacement Considerations

Direct pin-compatible replacements include other AD5162 variants with different resistance values (e.g., AD5162BRMZ50 for 50 kΩ). For single-channel requirements, the AD5161 series offers similar SPI interfaces but with only one potentiometer channel.