MAX6035AAUR30+T

Overview

The MAX6035AAUR30+T is a high-voltage, precision micropower voltage reference featuring a fixed 3.0V output in a 3-pin SOT23 package. It operates within a supply voltage range of 4.9V to 33V and maintains an initial accuracy of ±0.2% with a maximum temperature coefficient of 25ppm/°C across the -40°C to +85°C range. The device draws a typical quiescent supply current of 73µA, capable of sourcing 10mA or sinking 2mA. It requires no external compensation capacitor and remains stable with capacitive loads up to 5µF.

Feature Summary

• Proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors ensures low temperature drift and high initial accuracy.
• Series-mode architecture provides supply current virtually independent of input voltage, eliminating the need for external biasing resistors.
• Internally compensated design removes the requirement for external frequency-stability capacitors while supporting significant capacitive loading.

Applications

• 4mA to 20mA Industrial Control Loops
• Li+ Battery Chargers
• 12-Bit A/D and D/A Converters
• Portable Data-Acquisition Systems

Procurement Notes

Verify the specific suffix '+T' indicates tape-and-reel packaging when reviewing distributor listings. Confirm that the 'A' grade designation matches the required ±0.2% accuracy specification. Ensure the operating environment aligns with the specified -40°C to +125°C junction temperature limits. Cross-reference the manufacturer part number against official Analog Devices documentation to validate authenticity.

Selection Notes

Select this component when space constraints necessitate a compact SOT23-3 footprint compared to traditional 8-pin SO packages. Choose this series-mode reference over shunt-type alternatives to minimize power consumption in battery-operated systems. Verify that the 3.0V output level meets the system requirements without additional scaling. Consider the internal compensation benefits if board area optimization is critical.

Part Context

This device belongs to the MAX6035 family of high-supply-voltage precision references. It serves as a direct upgrade for industry-standard devices like the REF02 and REF43, offering significantly lower power consumption and reduced physical size. The family includes variants with 2.5V, 3.0V, and 5.0V outputs, utilizing BiCMOS process technology for robust performance.

Replacement Considerations

Public confirmed substitute part numbers: MAX6035AAUR25+T, MAX6035AAUR50+T.