LM4041DIDCKR

Voltage Reference Overview

The LM4041DIDCKR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides an adjustable output voltage ranging from 1.225V to 10V using external resistors. The device features a maximum initial accuracy of 1% and a temperature coefficient of 150ppm/°C. It operates within a wide current range, with a minimum typical operating current of 45μA and a maximum shunt current of 12mA. The component is housed in a SC-70-5 surface-mount package and supports an extended industrial temperature range from -40°C to +125°C.

Voltage Reference Feature Summary

• Adjustable output voltage capability spanning 1.225V to 10V via external resistor dividers
• Stable operation across all capacitive loads without requiring external output capacitors
• Low dynamic impedance and low noise characteristics for precise reference applications
• Micropower design suitable for battery-operated systems with minimal quiescent current

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix IDCKR corresponds to the SC-70-5 package and 1% tolerance grade D when ordering. Confirm the extended temperature rating (-40°C to +125°C) matches the application environment requirements. Ensure the adjustable configuration aligns with the circuit design, as fixed voltage variants exist within the same family. Check for RoHS compliance status if required by manufacturing standards.

Voltage Reference Selection Notes

Select this component when an adjustable precision reference is needed in a compact surface-mount footprint. The 1% accuracy and 150ppm/°C temperature coefficient suit general-purpose applications where extreme precision is not critical. Consider the SC-70-5 package size constraints and the need for external resistors to set the desired output voltage between 1.225V and 10V.

Voltage Reference Part Context

This part belongs to the LM4041 family of precision micropower shunt voltage references. The family offers various accuracy grades (A, B, C, D) and packages (SOT-23-3, SC-70-5, TO-92). The 'D' suffix indicates the 1% accuracy grade, while 'IDCKR' specifies the industrial/extended temperature range and SC-70-5 reel packaging. It serves as a versatile reference solution for cost-sensitive designs.

Voltage Reference Replacement Considerations

LM4041DIDCKRE4 is a lead-free version of the same device. LM4041DIZ-ADJ/NOPB is an adjustable variant in a different package. Verify pinout compatibility and thermal performance when substituting with other LM4041 series parts or competitor equivalents like LT1634.