MAX6138CEXR41-T

Overview

The MAX6138CEXR41-T is a precision, two-terminal shunt mode bandgap voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 4.096V and is housed in a subminiature 3-pin SC-70 surface-mount package measuring 1.8mm x 1.8mm. The device features laser-trimmed resistors ensuring an initial accuracy of 0.5% and a temperature coefficient of 25ppm/°C. It operates within a maximum shunt current of 15mA across a temperature range of -40°C to +85°C.

Feature Summary

• Compact SC-70 surface-mount package designed for space-critical applications
• Laser-trimmed resistors ensure precise initial accuracy
• Two-terminal shunt mode bandgap architecture

Applications

• Portable instrumentation
• Battery-powered equipment
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when sourcing. Confirm the 'C' grade corresponds to the 0.5% initial accuracy specification. Ensure compatibility with the 4.096V output requirement for your circuit design before procurement.

Selection Notes

Select this component when a compact footprint is required alongside stable voltage referencing. The 0.5% accuracy suits general-purpose applications where tighter tolerances are unnecessary. Consider the 15mA maximum shunt current limit during thermal and power budget calculations.

Part Context

This part belongs to the MAX6138 series of precision shunt voltage references. The family offers multiple fixed reverse breakdown voltages including 1.2205V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V. The series is characterized by low temperature coefficients and small physical dimensions compared to standard SOT23 packages.

Replacement Considerations

Compatible substitutes include other MAX6138 variants with different voltage outputs or accuracy grades, such as MAX6138AEXR41+T or MAX6138BEXR41+T, provided the electrical parameters meet the system requirements.