LM4040AIX3-3.0

Overview

The LM4040AIX3-3.0 is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated, featuring a fixed output of 3.0 V with an initial accuracy of ±0.1%. It operates within a temperature range of -40°C to +125°C and has a maximum temperature coefficient of 70 ppm/°C. The device is housed in an SC-70-3 package and supports a maximum shunt current of 15 mA.

Feature Summary

• Provides high precision with ±0.1% initial accuracy at 25°C
• Operates over the industrial temperature range from -40°C to +125°C
• Features ultra-low operating current for power-restricted designs
• Maintains stability when used with capacitive loads

Applications

• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems
• Data acquisition systems needing stable reference voltages
• Handheld devices with space constraints

Procurement Notes

Verify the specific suffix 'IX3' against official manufacturer documentation to confirm the exact package type and tape-and-reel specifications. Ensure compatibility with SC-70-3 footprints during PCB design. Confirm RoHS compliance status through the latest datasheet or component declaration documents provided by Analog Devices.

Selection Notes

Select this component for applications demanding high accuracy (±0.1%) and low quiescent current in compact form factors. Compare the 70 ppm/°C temperature coefficient against stricter requirements if higher thermal stability is needed. Consider the SC-70-3 package dimensions for space-limited layouts versus larger SOT-23 alternatives.

Part Context

This part belongs to the LM4040 family of micropower shunt voltage references, designed for high precision and low power operation. The series offers various output voltages and accuracy grades, including A (±0.1%), B (±0.2%), C (±0.5%), and D (±1%). The LM4040A variant specifically targets applications requiring tighter tolerance than standard references.

Replacement Considerations

LM4040AIM3-3.0+T: Similar shunt reference with ±0.1% accuracy but may differ in package (SOT-23-3) and temperature coefficient (100 ppm/°C). Verify thermal performance and physical footprint compatibility before substitution.