LM4040BIZ-8.2

Overview

The LM4040BIZ-8.2 is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring an 8.192 V nominal output. It operates within a reverse current range of 91 μA to 15 mA and maintains a maximum temperature coefficient of 150 ppm/°C across the industrial temperature range of -40°C to +85°C. The device utilizes a TO-92 package with three pins and achieves an initial accuracy tolerance of ±0.2% at 25°C.

Feature Summary

• Provides stable reference voltage without requiring external stabilizing capacitors
• Capable of tolerating capacitive loads for simplified circuit design
• Utilizes bandgap reference curvature correction for low dynamic impedance

Applications

• Data acquisition systems
• Portable battery-powered equipment
• Precision instrumentation

Procurement Notes

Verify the specific suffix 'Z' indicates the TO-92 package configuration. Confirm that the 'B' grade corresponds to the required ±0.2% initial accuracy specification. Ensure the operating environment remains within the specified -40°C to +85°C industrial temperature range for guaranteed performance parameters.

Selection Notes

Select this component when a fixed 8.192 V reference is required in a through-hole TO-92 package. It is suitable for applications needing micropower operation down to 91 μA while maintaining high precision. Consider alternative packages like SOT-23 if space constraints dictate surface-mount requirements.

Part Context

This part belongs to the LM4040-N family of precision micropower shunt voltage references from Texas Instruments. The family offers various fixed breakdown voltages including 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V. The LM4040 series is designed for space-critical applications and provides stability with any capacitive load.

Replacement Considerations

LM4040CEZ-8.2/NOPB