MAX6034BEXR21+T

Overview

The MAX6034BEXR21+T is a precision series voltage reference delivering a fixed output of 2.048V 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 current of up to 125µA and supports input voltages from 2.5V to 5.5V. It can source 1mA and sink 200µA, maintaining stability with capacitive loads up to 1µF without external compensation.

Feature Summary

• Proprietary curvature-correction circuitry ensures low temperature drift
• Laser-trimmed thin-film resistors provide high initial accuracy
• Internally compensated design eliminates the need for external capacitors
• Ultra-low dropout voltage enables efficient battery-powered operation

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 rather than the higher precision 'A' variant. Confirm the '+T' designation corresponds to tape-and-reel packaging. Ensure the component matches the exact SC-70-3 footprint and pinout configuration required by the target PCB layout.

Selection Notes

Select this part when board space is limited due to the compact SC-70-3 package. Choose this model over shunt references to eliminate external current-limiting resistors and reduce power waste. Consider the 75ppm/°C drift if operating across wide temperature ranges where tighter tolerance is required.

Part Context

This component belongs to the MAX6034 family of micropower, low-dropout series voltage references manufactured by Analog Devices (Maxim Integrated). The family utilizes BiCMOS technology and offers various fixed output voltages. The B-grade variant provides a balance of cost and performance for general-purpose precision applications.

Replacement Considerations

MAX6034AEXR21+T: Offers superior ±0.2% accuracy and lower 30ppm/°C temperature coefficient.