LM4040A10IDBZT

Overview

The LM4040A10IDBZT is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 10V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions in ambient temperatures from -40°C to +85°C. Packaged in a space-saving SOT-23-3 format, it requires no external capacitors for stability.

Feature Summary

• Maintains stable output voltage across wide operating currents and temperatures due to low dynamic impedance and low noise characteristics.
• Operates without external output capacitors while remaining stable with all capacitive loads.
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to achieve tight output tolerances.

Applications

• Data-Acquisition Systems
• Energy Infrastructure
• Analog Input Module
• Field Transmitters
• Precision Audio

Procurement Notes

Verify the specific suffix 'DBZT' corresponds to the SOT-23 package and tape-and-reel delivery method as defined in the manufacturer's orderable addendum. Confirm that the 'I' designation aligns with the required industrial temperature range of -40°C to 85°C for your application environment. Cross-reference the datasheet revision history to ensure compatibility with current design specifications.

Selection Notes

Select this component when a high-precision 10V reference is required in a compact surface-mount footprint. The A-grade specification ensures minimal deviation from the nominal voltage. Ensure the circuit design accommodates the minimum cathode current requirement of 45μA to maintain regulation. Consider the thermal resistance metrics if operating near the upper temperature limit.

Part Context

This part belongs to the LM4040 series of shunt voltage references, which offers various fixed output voltages including 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V. The series is designed for portable applications due to its low power consumption and small package options like SC-70 and SOT-23-3. Different grades (A, B, C, D) provide varying levels of accuracy and temperature coefficient performance.

Replacement Considerations

LM4040A10IDBZR