MAX6034BEXR30+T

Overview

The MAX6034BEXR30+T is a precision series voltage reference delivering a fixed 3.000V output in an SC-70-3 package. It features ±0.4% initial accuracy and a maximum temperature coefficient of 75ppm/°C. The device operates with a supply voltage range from VOUT + 200mV to 5.5V, drawing a typical quiescent current of 125µA. It supports sourcing up to 1mA and sinking up to 200µA load current with a maximum dropout voltage of 200mV at full source load. The component functions reliably within an operating 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 low temperature drift.
• Series-mode architecture provides supply current virtually independent of input voltage variations without requiring external resistors.
• Internally compensated design eliminates the need for external compensation capacitors while maintaining stability with capacitive loads up to 1µF.

Applications

• Hand-Held Equipment
• Data-Acquisition Systems
• Industrial and Process Control Systems
• Battery-Operated Equipment
• Hard-Disk Drives

Procurement Notes

Verify the specific suffix 'B' indicates the ±0.4% accuracy grade and '30' denotes the 3.000V output voltage against the official Maxim Integrated ordering guide. Confirm the '+T' designation corresponds to the reel packaging format required for surface-mount assembly processes. Ensure the SC-70-3 footprint matches the PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this component when board space is limited due to its miniature 3-pin SC-70 package. Choose this part over shunt references if external biasing resistors are undesirable or if supply current independence from input voltage is critical. Verify that the 1mA sourcing capability meets the load requirements, as sinking current is limited to 200µA.

Part Context

This device belongs to the MAX6034 family of micropower, low-dropout voltage references manufactured by Analog Devices / Maxim Integrated. The family utilizes BiCMOS process technology and includes variants with different output voltages and accuracy grades (A and B). The MAX6034BEXR30+T specifically represents the B-grade accuracy variant with a fixed 3V output.

Replacement Considerations

MAX6034AEXR30+T offers higher accuracy (±0.2%) but may have different thermal characteristics. Other MAX6034 variants with different output voltages (e.g., MAX6034AEXR25+T) share the same package and pinout but provide different reference levels.