LM4040BIM3-5.0

Overview

The LM4040BIM3-5.0 is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 5 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 temperature coefficient of 100 ppm/°C. It supports a maximum shunt current of 15 mA and utilizes a SOT-23-3 surface-mount package.

Feature Summary

• Provides stable fixed voltage reference in compact surface-mount packaging
• Maintains high precision with low initial accuracy tolerance
• Operates reliably across extended industrial temperature ranges

Applications

• Portable instrumentation requiring space-saving references
• Battery-powered measurement systems
• Data acquisition circuits needing stable voltage sources

Procurement Notes

Verify the manufacturer designation, as this component is listed under both Texas Instruments and Analog Devices/Maxim Integrated due to historical acquisitions. Confirm the specific suffix indicates the correct accuracy grade and operating temperature range for your design requirements before procurement.

Selection Notes

Select this component when a 5 V reference with ±0.2% accuracy is required in a SOT-23-3 package. Ensure the application operates within the -40°C to +85°C range. Consider the 100 ppm/°C temperature coefficient for thermal stability needs compared to higher-grade alternatives.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references. The series offers various fixed output voltages and accuracy grades. The 'B' suffix typically denotes the ±0.2% accuracy class, while 'IM3' specifies the SOT-23-3 package variant suitable for surface-mount assembly.

Replacement Considerations

LM4040BIM3-5.0/NOPB is a confirmed equivalent part number from Texas Instruments.