LM4041C12IDBZRG4

Overview

The LM4041C12IDBZRG4 is a fixed shunt voltage reference IC manufactured by Texas Instruments. It provides a precise output voltage of 1.23 V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +85°C and features a low temperature coefficient of 20 ppm/°C. Packaged in a compact SOT-23 surface-mount housing, it supports a maximum cathode current of 12 mA and exhibits a load regulation of 6 mV. This component is designed for applications requiring stable reference voltages in space-constrained environments.

Feature Summary

• Provides a fixed 1.23 V precision reference voltage with high stability
• Features a low temperature coefficient of 20 ppm/°C for consistent performance across temperatures
• Utilizes a compact SOT-23 surface-mount package for efficient board space utilization

Applications

• Portable instrumentation systems requiring stable voltage references
• Battery-powered measurement devices needing low power consumption
• Data acquisition systems utilizing analog-to-digital converters
• Microprocessor supply monitoring circuits

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's official documentation to confirm compliance details and material specifications. Ensure the ordering part number matches the exact tolerance and package variant required for your design. Cross-reference the datasheet revision history to confirm the availability of the RoHS-compliant version. Confirm that the supplier source aligns with authorized distribution channels to guarantee component authenticity and traceability.

Selection Notes

Select this component when a fixed 1.23 V reference is required with ±0.5% initial accuracy. It is suitable for designs operating between -40°C and +85°C where a 20 ppm/°C temperature coefficient is necessary. Choose this part over adjustable variants if a fixed voltage is preferred to simplify circuit design. Ensure the application current requirements do not exceed the 12 mA maximum cathode current rating specified for the SOT-23 package.

Part Context

This component belongs to the LM4041 series of micropower shunt voltage references from Texas Instruments. The series offers various fixed voltage options and accuracy grades. The LM4041C12IDBZRG4 specifically denotes the 1.23 V output variant with C-grade accuracy (±0.5%) and industrial temperature range. The G4 suffix typically indicates RoHS compliance and lead-free packaging status within the manufacturer's product lineup.

Replacement Considerations

Direct replacements include other LM4041 variants with matching voltage and accuracy, such as LM4041C12IDBZR. Verify pinout compatibility and thermal characteristics before substitution. Alternative manufacturers may offer similar shunt references, but electrical parameters must be compared carefully.