MAX5161MEZT

Overview

The MAX5161MEZT is a low-power, 32-tap digital potentiometer manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from +2.7V to +5.5V and consumes only 100nA of supply current. The device features a linear taper with resistance values available in 50kΩ, 100kΩ, and 200kΩ options. It utilizes a two-line control interface for increment/decrement operations. Key electrical characteristics include ±1LSB differential nonlinearity (DNL), ±0.5LSB integral nonlinearity (INL), and a wiper resistance of 400Ω. The component is housed in a compact 6-pin SOT-23 package and is guaranteed to operate within the extended industrial temperature range of -40°C to +85°C.

Feature Summary

• 32 tap positions with linear taper for precise resistance adjustment
• Ultra-low power consumption of 100nA supply current
• Two-line Increment/Decrement control interface
• High accuracy with ±1LSB DNL and ±0.5LSB INL

Applications

• LCD screen brightness or contrast adjustment
• Volume control in portable audio devices
• Replacement for mechanical potentiometers in space-constrained designs

Procurement Notes

Verify the specific resistance value variant (50kΩ, 100kΩ, or 200kΩ) as the base part number may require suffix differentiation. Confirm the package type matches the required PCB footprint. Check for RoHS compliance status and ensure the operating temperature range meets the environmental requirements of the target application.

Selection Notes

Select the MAX5161MEZT when a small 6-pin SOT-23 package is preferred over the 8-pin µMAX version. Choose this component for applications requiring simple two-wire control logic rather than full serial communication. Ensure the required end-to-end resistance aligns with the available 50kΩ, 100kΩ, or 200kΩ options provided by the family.

Part Context

The MAX5161 is part of the MAX5160/MAX5161 family of linear-taper digital potentiometers. It serves as the 6-pin SOT-23 counterpart to the 8-pin MAX5160, offering identical electrical performance and functionality in a smaller form factor. Both devices are designed to replace mechanical potentiometers in portable and battery-powered systems.

Replacement Considerations

The MAX5160MEUA+ is a direct functional replacement if an 8-pin µMAX package is acceptable. Verify that the pinout compatibility and control interface logic match the existing design constraints before substituting.