AD5162BRMZ100

Overview

The AD5162BRMZ100 is a dual-channel, 8-bit digital potentiometer featuring 256 adjustable 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 100 kΩ and utilizes a standard SPI-compatible 3-wire serial interface for control. It includes volatile wiper memory that defaults to midscale upon power-up. The component is housed in a compact 10-lead MSOP package (3 mm × 4.9 mm) and supports an operating temperature range from −40°C to +125°C.

Feature Summary

• Dual-channel architecture with 256 distinct tap positions per channel
• SPI-compatible 3-wire serial interface (SDI, CLK, CS)
• Volatile wiper memory with automatic power-on preset to midscale
• Low power consumption: 6 µA maximum supply current at 5 V

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/offset adjustment

Procurement Notes

Verify the specific suffix '100' confirms the 100 kΩ nominal resistance value. Confirm the 'B' grade indicates the specified industrial temperature range and tolerance parameters. Ensure the 'MZ' designation matches the required 10-lead MSOP surface-mount package footprint for the target PCB layout.

Selection Notes

Select this model when a 100 kΩ end-to-end resistance is required. Note that the AD5162 uses volatile memory; if non-volatile storage is necessary without external microcontrollers, consider the AD5170 series instead. Verify that the system's SPI controller can support the required clock frequency of up to 25 MHz.

Part Context

This component belongs to the AD5162 family of dual digital potentiometers. The '100' suffix specifically denotes the 100 kΩ resistor variant, distinguishing it from other available values such as 2.5 kΩ, 10 kΩ, or 50 kΩ within the same functional family.

Replacement Considerations

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