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LM4041A12

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1.2-V precision micropower shunt voltage reference with 0.1% accuracy

Product details

VO (V) 1.225 Initial accuracy (max) (%) 0.1 VO adj (min) (V) 1.225 VO adj (max) (V) 1.225 Iz for regulation (min) (µA) 45 Reference voltage (V) Fixed Rating Catalog Temp coeff (max) (ppm/°C) 100 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 25
VO (V) 1.225 Initial accuracy (max) (%) 0.1 VO adj (min) (V) 1.225 VO adj (max) (V) 1.225 Iz for regulation (min) (µA) 45 Reference voltage (V) Fixed Rating Catalog Temp coeff (max) (ppm/°C) 100 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 25
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37 SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • 1.225-V Fixed and Adjustable Outputs (1.225 V to 10 V)
  • Tight Output Tolerances and Low Temperature Coefficient
    • Max 0.1%, 100 ppm/°C – A Grade
    • Max 0.2%, 100 ppm/°C – B Grade
    • Max 0.5%, 100 ppm/°C – C Grade
    • Max 1.0%, 150 ppm/°C – D Grade
  • Low Output Noise . . . 20 µVRMS (Typ)
  • Wide Operating Current Range . . . 45 µA (Typ) to 12 mA
  • Stable With All Capacitive Loads; No Output Capacitor Required
  • Available in
    • Industrial Temperature: –40°C to 85°C
    • Extended Temperature: –40°C to 125°C
  • 1.225-V Fixed and Adjustable Outputs (1.225 V to 10 V)
  • Tight Output Tolerances and Low Temperature Coefficient
    • Max 0.1%, 100 ppm/°C – A Grade
    • Max 0.2%, 100 ppm/°C – B Grade
    • Max 0.5%, 100 ppm/°C – C Grade
    • Max 1.0%, 150 ppm/°C – D Grade
  • Low Output Noise . . . 20 µVRMS (Typ)
  • Wide Operating Current Range . . . 45 µA (Typ) to 12 mA
  • Stable With All Capacitive Loads; No Output Capacitor Required
  • Available in
    • Industrial Temperature: –40°C to 85°C
    • Extended Temperature: –40°C to 125°C

The LM4041 series of shunt voltage references are versatile, easy-to-use references suitable for a wide array of applications. They require no external capacitors for operation and are stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and a low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4041 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for their applications. The LM4041 is available in a fixed (1.225 V nominal) or an adjustable version (which requires an external resistor divider to set the output to a value between 1.225 V and 10 V).

Packaged in space-saving SC-70 and SOT-23-3 and requiring a minimum current of 45 µA (typ), the LM4041 also is ideal for portable applications. The TO-92 package also is available for through-hole packaging needs. The LM4041xI is characterized for operation over an ambient temperature range of –40°C to 85°C. The LM4041xQ is characterized for operation over an ambient temperature range of –40°C to 125°C.

The LM4041 series of shunt voltage references are versatile, easy-to-use references suitable for a wide array of applications. They require no external capacitors for operation and are stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and a low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4041 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for their applications. The LM4041 is available in a fixed (1.225 V nominal) or an adjustable version (which requires an external resistor divider to set the output to a value between 1.225 V and 10 V).

Packaged in space-saving SC-70 and SOT-23-3 and requiring a minimum current of 45 µA (typ), the LM4041 also is ideal for portable applications. The TO-92 package also is available for through-hole packaging needs. The LM4041xI is characterized for operation over an ambient temperature range of –40°C to 85°C. The LM4041xQ is characterized for operation over an ambient temperature range of –40°C to 125°C.

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Technical documentation

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* Data sheet LM4041 Precision Micropower Shunt Voltage Reference. datasheet (Rev. F) 21 Sep 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
More literature SLL Precision Reference Product Clip 23 Feb 2006

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SOT-23 (DBZ) 3 View options
SOT-SC70 (DCK) 5 View options

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