MAX6067AEUR-T

Overview

The MAX6067AEUR-T is a precision, micropower voltage reference from the MAX6061–MAX6068 series. It provides a fixed output voltage of 4.5V with an initial accuracy of ±0.2% and a maximum temperature coefficient of 20ppm/°C. The device operates within an input voltage range of 4.7V to 12.6V and draws a typical quiescent supply current of 90µA. It features a low dropout voltage of 200mV at a 1mA load current and can source up to 5mA or sink 2mA of load current. The component is housed in a compact 3-pin SOT-23 package and is rated for operation across an extended temperature range of -40°C to +85°C.

Feature Summary

• Proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors ensures high precision and stability.
• Series-mode architecture eliminates the need for external biasing resistors required by conventional shunt references.
• Internally compensated design allows stable operation without requiring an external compensation capacitor.
• Supply current remains virtually independent of the input supply voltage, maximizing efficiency in battery-powered systems.

Applications

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

Procurement Notes

Verify the specific suffix 'EUR' indicates the SOT-23-3 surface-mount package configuration. Confirm that the 'A' grade designation corresponds to the ±0.2% initial accuracy specification rather than the lower precision 'B' grade. Ensure the ordering quantity meets the manufacturer's minimum increment requirements for reel packaging. Cross-reference the top marking code FZFS to validate authenticity against official datasheet documentation.

Selection Notes

Select this component when a fixed 4.5V reference is required with tight initial accuracy tolerances. The low quiescent current makes it suitable for power-sensitive applications where minimizing standby drain is critical. Verify that the input voltage exceeds the minimum requirement of VOUT plus the dropout voltage under all operating conditions. Consider the SOT-23 footprint constraints if board space is limited compared to larger packages.

Part Context

This part belongs to the MAX6061–MAX6068 family of precision voltage references manufactured by Analog Devices / Maxim Integrated. The family shares common architectural features including micropower consumption and low dropout characteristics. Variations within the series are defined by their fixed output voltage options and accuracy grades, allowing designers to choose specific voltages while maintaining consistent performance parameters across the product line.

Replacement Considerations

Direct substitutes within the same family include the MAX6067BEUR-T, which offers a wider tolerance of ±0.4%. Other voltage options such as the MAX6066AEUR-T (2.5V) or MAX6065AEUR-T (5V) may be considered if the system design permits different reference levels. Ensure any replacement maintains the SOT-23-3 pinout compatibility.