LM4040BEX3-4.1+

Overview

The LM4040BEX3-4.1+ is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 4.096 V with an initial accuracy of ±0.2%. The device operates within a temperature range of -40°C to +85°C and features a maximum shunt current of 15 mA. It is housed in a compact SOT-23-3 surface-mount package, designed for precision applications requiring stable voltage regulation.

Feature Summary

• Micropower operation suitable for battery-powered systems
• High precision with ±0.2% initial accuracy
• Compact SOT-23-3 surface-mount packaging

Applications

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

Procurement Notes

Verify the manufacturer designation as Analog Devices Inc./Maxim Integrated on official documentation. Confirm the specific suffix '+T' or absence thereof matches your supply chain requirements. Ensure the package type is SOT-23-3 and the output voltage is exactly 4.096 V. Check RoHS compliance status through the manufacturer's official declarations.

Selection Notes

Select this component when a precise 4.096 V reference is needed in a small footprint. The ±0.2% accuracy suits high-precision analog circuits. Consider the -40°C to +85°C operating range for industrial environments. Verify that the shunt current capability meets the circuit's biasing needs.

Part Context

This part belongs to the LM4040 family of improved precision micropower shunt voltage references. The 'B' grade indicates tighter accuracy specifications compared to lower grades. The 'EX3' denotes the SC-70-3 package variant, while 'M3' typically refers to SOT-23-3; verify the exact package code against the datasheet.

Replacement Considerations

LM4040BIM3-4.1+T is a documented equivalent from the same manufacturer family.