MAX6035AAUR25+T

Overview

The MAX6035AAUR25+T is a high-voltage, precision micropower voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.2% and a maximum temperature coefficient of 25ppm/°C over the -40°C to +85°C range. The device operates within a supply voltage range of 4.4V to 33V and draws a typical quiescent supply current of 73µA. It features a 10mA source current capability and a 2mA sink current capability. The component is housed in a 3-pin SOT-23 package and is specified for operation from -40°C to +125°C.

Feature Summary

• Features proprietary temperature coefficient curvature-correction circuitry and laser-trimmed thin-film resistors for high precision.
• Offers supply current virtually independent of the supply voltage, eliminating the need for external biasing resistors.
• Internally compensated design that does not require an external compensation capacitor for stability.
• Capable of driving capacitive loads up to 5µF without oscillation.

Applications

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

Procurement Notes

Verify the specific suffix '+T' indicates tape-and-reel packaging when sourcing. Confirm the 'AA' grade corresponds to the required ±0.2% initial accuracy and 25ppm/°C temperature coefficient specifications. Ensure the ordering part number matches the exact voltage option and package type required for the target application design.

Selection Notes

Select this component for applications requiring a compact three-terminal series-mode reference with low power consumption. It serves as a direct upgrade for industry-standard devices like the REF02 and REF43, offering significantly lower power dissipation and reduced package size. Consider the 10mA source current limit when designing load circuits to ensure adequate drive capability.

Part Context

This device belongs to the MAX6035 family of high-supply-voltage precision voltage references. The family includes variants with different output voltages (2.5V, 3.0V, 5.0V) and accuracy grades ('A' for ±0.2%, 'B' for ±0.5%). The MAX6035AAUR25+T specifically denotes the 2.5V output version with the highest precision grade in the SOT-23 surface-mount package.

Replacement Considerations

The datasheet identifies the REF02 and REF43 as industry-standard devices for which the MAX6035 offers an excellent upgrade path due to lower power consumption and smaller package size. No other specific substitute part numbers are documented in the provided source material.