MAX6138CEXR50-T

Overview

The MAX6138CEXR50-T is a two-terminal shunt voltage reference manufactured by Analog Devices Inc. under the Maxim Integrated brand. It provides a nominal output voltage of 5V with an initial accuracy of ±0.1% and a temperature coefficient of 25ppm/°C. The device utilizes BICMOS technology and is housed in a compact SC-70 (SOT-323) surface-mount package with three terminals. It operates within a temperature range of -40°C to +85°C, ensuring stable performance across industrial conditions.

Feature Summary

• Provides high-precision voltage referencing with tight initial accuracy and low temperature drift
• Utilizes a compact SC-70 surface-mount package for space-constrained designs
• Operates as a two-terminal shunt reference requiring minimal external components

Applications

• Portable instrumentation systems requiring precise voltage references
• Battery-powered devices where low quiescent current is critical
• Data acquisition systems needing stable analog reference voltages

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the 'C' grade designation corresponds to the required ±0.1% accuracy level for your application. Ensure the SC-70 footprint matches your PCB layout constraints. Check for lead-free compliance if RoHS standards are mandatory for your production environment.

Selection Notes

Select this component when a fixed 5V reference is needed in a minimal footprint. The ±0.1% accuracy suits applications demanding high precision without complex calibration. Consider the SC-70 package size against available board space. Evaluate thermal management requirements given the shunt configuration and operating temperature range.

Part Context

This part belongs to the MAX6138 family of shunt voltage references designed for portable and battery-operated equipment. The family offers various output voltages and accuracy grades to suit different system requirements. The Maxim Integrated division specializes in power management and signal chain solutions for embedded systems.

Replacement Considerations

Check for direct pin-compatible alternatives within the MAX6138 series offering different voltage outputs or accuracy grades. Verify that any substitute maintains the same SC-70 package and electrical characteristics to ensure seamless integration.