LM4040A41IDBZTG4

Overview

The LM4040A41IDBZTG4 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 4.096V with an initial accuracy of ±0.1% and a temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions in an ambient temperature range of -40°C to 85°C. It is housed in a space-saving SOT-23 package.

Feature Summary

• Offers high precision with tight output tolerances and low temperature coefficients for stable performance.
• Requires no external capacitors for operation and remains stable with all capacitive loads.
• Features low dynamic impedance and low noise characteristics to maintain voltage stability across varying currents and temperatures.

Applications

• Data-Acquisition Systems
• Energy Infrastructure
• Analog Input Modules
• Field Transmitters

Procurement Notes

Verify the specific ordering suffix 'G4' against the manufacturer's latest documentation to confirm RoHS compliance status and any potential changes in material composition or bonding materials. Ensure the component grade matches the required application specifications before procurement.

Selection Notes

Select this component when a fixed 4.096V reference with high initial accuracy is required. The industrial temperature rating (-40°C to 85°C) suits standard electronic environments. Consider the SOT-23 package size for space-constrained designs requiring surface-mount integration.

Part Context

This part belongs to the LM4040 series of shunt voltage references, which are designed for versatile applications requiring precise voltage regulation. The series includes various grades (A, B, C, D) offering different tolerance and temperature coefficient combinations to balance cost and performance.

FAQ

Does the LM4040A41IDBZTG4 require an output capacitor?

No, the device does not require an external capacitor for operation and is stable with all capacitive loads.

What is the minimum operating current for this reference?

The typical minimum cathode current is 45μA at 25°C, increasing to 80μA across the full operating temperature range.