MAX6066BEUR-T

Overview

The MAX6066BEUR-T is a precision, micropower, low-dropout voltage reference from the MAX6061–MAX6068 series. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.4% and a maximum temperature coefficient of 30ppm/°C. The device operates within an input voltage range of 2.7V to 12.6V and draws a typical quiescent supply current of 90µA. It can source up to 5mA or sink up to 2mA of load current. The component is housed in a 3-pin SOT-23 package and functions reliably across an extended temperature range of -40°C to +85°C.

Feature Summary

• Proprietary curvature-correction circuit and laser-trimmed thin-film resistors ensure high precision and stability.
• Series-mode architecture eliminates the need for external biasing resistors required by shunt references.
• Internally compensated design removes the requirement for external compensation capacitors.
• Supply current remains virtually independent of the supply voltage, maximizing efficiency.

Applications

• Analog-to-Digital Converters (ADCs)
• Portable Battery-Powered Systems
• Precision 3V/5V Systems

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm that the 'B' grade corresponds to the ±0.4% initial accuracy specification rather than the tighter ±0.2% 'A' grade. Ensure the input voltage source can provide sufficient current during turn-on transients if operating near minimum dropout conditions. Cross-reference the manufacturer part number with distributor codes to avoid confusion with similar series members.

Selection Notes

Select this component when a stable 2.5V reference is needed in space-constrained designs due to the compact SOT-23 package. Choose this series over shunt references to improve battery life through lower, voltage-independent quiescent current. Consider the ±0.4% accuracy grade if the application does not require the tighter tolerances of the 'A' version. Verify that the load current requirements do not exceed the 5mA sourcing or 2mA sinking capabilities specified in the datasheet.

Part Context

This device belongs to the MAX6061–MAX6068 family of precision voltage references manufactured by Analog Devices / Maxim Integrated. The family shares common architectural features such as micropower operation and low dropout characteristics. The MAX6066 specifically targets applications requiring a 2.5V output level. The 'EUR' designation denotes the SOT-23-3 surface-mount package configuration.

Replacement Considerations

Other members of the MAX6061–MAX6068 series may serve as functional replacements if different output voltages are acceptable. For identical 2.5V performance with higher precision, the MAX6066AEUR-T offers ±0.2% accuracy. Ensure pin compatibility and thermal characteristics match the existing design constraints before substituting.