MAX6018BEUR18+T

Overview

The MAX6018BEUR18+T is a precision, micropower voltage reference providing a fixed 1.8V output in a compact SOT23-3 package. It operates within an input voltage range of 1.8V to 5.5V and supports load currents up to 1mA with a maximum dropout voltage of 200mV. The device features an initial accuracy of ±0.4% and a temperature drift coefficient of 50ppm/°C. Quiescent supply current is maintained at a maximum of 5μA, varying by only 0.1μA/V across the operating range.

Feature Summary

• Ultra-low quiescent supply current that remains virtually independent of the input supply voltage
• Low-dropout architecture enabling operation from inputs as low as VOUT + 200mV
• High initial accuracy with minimal temperature drift for stable reference performance
• Compact three-terminal SOT23 package design suitable for space-constrained applications

Applications

• Two-cell alkaline battery monitoring systems
• Battery-operated equipment
• Hand-held electronic devices
• Data-acquisition systems
• Industrial and process-control systems

Procurement Notes

Verify the specific suffix 'B' indicates the B-grade accuracy class of ±0.4%. Confirm the 'UR18' designation corresponds to the 1.8V fixed output voltage option. Ensure the '+T' suffix matches the required tape-and-reel packaging format for automated assembly processes.

Selection Notes

Select this component when a fixed 1.8V reference is required with high precision and minimal power consumption. The B-grade accuracy suits applications where ±0.4% tolerance is acceptable. Verify that the input voltage stays within the specified range to maintain line regulation and ensure the load capacitance falls within the stability limits.

Part Context

This part belongs to the MAX6018 family of micropower voltage references manufactured by Analog Devices / Maxim Integrated. The series includes variants with different output voltages (1.2V, 1.6V, 2.048V) and accuracy grades (A-grade ±0.2%, B-grade ±0.4%). All members share the same low-power, low-dropout characteristics and SOT23-3 form factor.

Replacement Considerations

MAX6018AEUR18+T offers identical electrical specifications except for improved initial accuracy of ±0.2%.