LM4120IM5-2.5

Voltage Reference Overview

The LM4120IM5-2.5 is a precision micropower shunt voltage reference manufactured by Texas Instruments, housed in an SOT-23-5 package. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.5%. The device operates within an input voltage range of 2V to 12V and draws a supply current of 275µA. Key performance metrics include a temperature coefficient of 50ppm/°C, a maximum shunt current of 5mA, and low noise characteristics of 20µVp-p from 0.1Hz to 10Hz. It functions reliably across a temperature range of -40°C to 85°C.

Voltage Reference Feature Summary

• Provides stable reference voltage with high initial accuracy
• Operates at micropower levels for energy efficiency
• Features low noise output for sensitive applications

Voltage Reference Applications

• Portable instrumentation requiring precise voltage references
• Battery-powered measurement devices
• Data acquisition systems needing stable analog references

Voltage Reference Procurement Notes

Verify the specific suffix 'IM5' confirms the SOT-23-5 surface mount package variant. Ensure the '-2.5' designation matches the required 2.5V output level. Confirm RoHS compliance status if environmental regulations apply to your manufacturing process. Check for any obsolete or end-of-life notices associated with this specific part number before finalizing procurement plans.

Voltage Reference Selection Notes

Select this component when a fixed 2.5V reference is needed in a compact SOT-23-5 footprint. It is suitable for designs prioritizing low power consumption alongside moderate precision requirements. Consider the 50ppm/°C temperature coefficient against application thermal stability needs. Compare against higher precision alternatives if tighter tolerance than ±0.5% is required.

Voltage Reference Part Context

This part belongs to the LM4120 series of precision micropower voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades. The IM5 suffix specifically denotes the small outline transistor package variant designed for surface mount technology applications.

Voltage Reference Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.