LM4040EIM3-2.0/NOPB

Overview

The LM4040EIM3-2.0/NOPB is a micropower shunt voltage reference from Texas Instruments, offering a fixed output of 2.048 V with an initial accuracy of ±1%. Packaged in a compact SOT-23-3 surface-mount format, it operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 100 ppm/°C. The device supports a maximum shunt current of 15 mA and requires a minimum operating current of 60 µA.

Feature Summary

• Provides stable precision voltage reference performance in a miniature three-terminal package
• Designed for low-power applications through micropower consumption characteristics
• Maintains specified accuracy across the full industrial temperature range

Applications

• Portable battery-powered instrumentation
• Data acquisition systems requiring precise analog references
• Handheld measurement devices

Procurement Notes

Verify the specific suffix 'E' indicates the ±1% accuracy grade and '2.0' denotes the 2.048V output. Confirm the 'NOPB' suffix ensures lead-free compliance and RoHS adherence. Ensure the SOT-23-3 package matches your PCB footprint requirements before ordering.

Selection Notes

Select this component when a fixed 2.048V reference is required with moderate precision. It serves as a direct replacement for older National Semiconductor versions. Consider higher accuracy grades if tighter tolerances are needed, or automotive-grade variants for extended temperature ranges.

Part Context

This part belongs to the LM4040 series of precision micropower shunt voltage references. The series offers various fixed voltage options and accuracy grades. The LM4040 family is widely used in general-purpose analog circuits where space and power efficiency are critical constraints.

Replacement Considerations

Direct substitutes include LM4040EIM3-2.0 without the NOPB suffix. Other accuracy grades like LM4040CIM3-2.0 (±0.5%) or LM4040BIM3-2.0 (±0.2%) offer improved precision.