LM4041DQDBZTG4

Voltage Reference Overview

The LM4041DQDBZTG4 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides an adjustable output voltage ranging from 1.225 V to 10 V using external resistors. The device features a maximum initial accuracy of 1% and a temperature coefficient of 150 ppm/°C. It operates within an extended industrial temperature range of -40°C to +125°C. The component supports a maximum cathode current of 12 mA with a minimum operating current of approximately 60 µA. It is housed in a surface-mount SOT-23-3 package.

Voltage Reference Feature Summary

• Adjustable output voltage configuration via external resistor divider
• Stable operation across wide capacitive loads without external compensation
• Low dynamic impedance and low noise characteristics for precision applications

Voltage Reference Applications

• Data acquisition systems requiring stable reference voltages
• Portable battery-powered equipment due to low quiescent current
• Process control instrumentation and test equipment
• Power supply monitoring circuits

Voltage Reference Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS adherence as per Texas Instruments standards. Confirm the 'DQ' designation corresponds to the 1% accuracy and 150 ppm/C temperature coefficient specifications. Ensure the SOT-23-3 package matches the target PCB footprint. Check for any recent product change notices regarding material or assembly updates.

Voltage Reference Selection Notes

Select this component when an adjustable reference voltage between 1.225 V and 10 V is required in a compact surface-mount form factor. It is suitable for designs needing extended temperature stability up to 125°C. Consider the 1% tolerance and 150 ppm/C drift if high-precision calibration is not feasible. Compare against fixed-voltage alternatives if the application does not require adjustability.

Voltage Reference Part Context

This part belongs to the LM4041 family of precision micropower shunt voltage references. The family includes fixed and adjustable variants with various accuracy grades (A, B, C, D) and temperature ranges (Industrial and Extended). The LM4041 series is designed for space-constrained portable applications and offers stability with all capacitive loads.

Voltage Reference Replacement Considerations

LM4041DIDCKTE4: Adjustable shunt reference, 1% accuracy, TSSOP-5 package. LM4041DILP: Adjustable shunt reference, 1% accuracy, TO-92-3 through-hole package.