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The LM4041AELT-1.2 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a stable 1.225 V output voltage. It features an initial accuracy of ±0.1% at 25 °C and a maximum temperature coefficient of 100 ppm/°C. The device operates with an ultra-low current consumption of 40 μA at 25 °C and supports a cathode current up to 12 mA. It is housed in a SOT-23-3 surface-mount package and functions within industrial (-40 to +85 °C) and extended (-40 to +125 °C) temperature ranges.
Verify the specific suffix 'A' confirms the ±0.1% accuracy grade and 'E' indicates the extended temperature range capability. Confirm the 'LT' designation aligns with the required SOT-23-3 packaging format. Ensure compatibility with the intended operating temperature environment before procurement.
Select this component when design constraints demand minimal quiescent current alongside high voltage stability. The fixed 1.225 V output is ideal for low-voltage applications where standard references are unsuitable. Consider the thermal performance requirements to ensure the selected temperature grade matches the operational environment.
This part belongs to the LM4041 family of micropower shunt voltage references from STMicroelectronics. The series offers various accuracy grades and temperature ranges, allowing designers to balance cost and performance. The LM4041AELT-1.2 specifically targets applications requiring the highest precision within the family's low-power profile.
LM4041CELT-1.2 (±0.5% accuracy)
Yes, the device is designed to remain stable even when driving capacitive loads.
The typical operating current is 40 μA at 25 °C.