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LM4051-N

ACTIVE

Fixed & adjustable, precision micropower shunt voltage reference

Product details

VO (V) 1.225 Initial accuracy (max) (%) 0.1, 0.2, 0.5 VO adj (min) (V) 1.24 VO adj (max) (V) 10 Iz for regulation (min) (µA) 60 Reference voltage (V) Fixed, adjustable Rating Catalog Temp coeff (max) (ppm/°C) 50 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 12
VO (V) 1.225 Initial accuracy (max) (%) 0.1, 0.2, 0.5 VO adj (min) (V) 1.24 VO adj (max) (V) 10 Iz for regulation (min) (µA) 60 Reference voltage (V) Fixed, adjustable Rating Catalog Temp coeff (max) (ppm/°C) 50 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 12
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • No Output Capacitor Required
  • Tolerates Capacitive Loads
  • Reverse Breakdown Voltage Options of 1.225 V and Adjustable
  • Key Specifications:
    • Output Voltage Tolerance (A Grade, 25 ̊C) ± 0.1% (Maximum)
    • Output Noise (10 Hz to 10 kHz) 20 µV rms
    • Operating Current Range: 60 µA to 12 mA
    • Industrial Temp. Range: −40 ̊C to +85 ̊C
    • Extended Temp. Range: −40 ̊C to +125 ̊C
    • Temperature Coefficient: 50 ppm/ ̊C (Maximum)
  • No Output Capacitor Required
  • Tolerates Capacitive Loads
  • Reverse Breakdown Voltage Options of 1.225 V and Adjustable
  • Key Specifications:
    • Output Voltage Tolerance (A Grade, 25 ̊C) ± 0.1% (Maximum)
    • Output Noise (10 Hz to 10 kHz) 20 µV rms
    • Operating Current Range: 60 µA to 12 mA
    • Industrial Temp. Range: −40 ̊C to +85 ̊C
    • Extended Temp. Range: −40 ̊C to +125 ̊C
    • Temperature Coefficient: 50 ppm/ ̊C (Maximum)

Ideal for space critical applications, the LM4051-N precision voltage reference is available in the sub-miniature (3 mm x 1.3 mm) SOT-23 surface-mount package. The LM4051-N’s advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4051-N easy to use. Further reducing design effort is the availability of a fixed (1.225V) and adjust- able reverse breakdown voltage. The minimum operating current is 60 µA for the LM4051-1.2 and the LM4051-ADJ. Both versions have a maximum operating current of 12 mA.

The LM4051-N comes in three grades (A, B, and C). The best grade devices (A) have an initial accuracy of 0.1%, while the B-grade have 0.2% and the C-grade 0.5%, all with a tempco of 50 ppm/ ̊C guaranteed from −40 ̊C to 125 ̊C.

The LM4051-N utilizes fuse and zener-zap trim of reference voltage during wafer sort to ensure that the prime parts have an accuracy of better than ± 0.1% (A grade) at 25 ̊C.

Ideal for space critical applications, the LM4051-N precision voltage reference is available in the sub-miniature (3 mm x 1.3 mm) SOT-23 surface-mount package. The LM4051-N’s advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4051-N easy to use. Further reducing design effort is the availability of a fixed (1.225V) and adjust- able reverse breakdown voltage. The minimum operating current is 60 µA for the LM4051-1.2 and the LM4051-ADJ. Both versions have a maximum operating current of 12 mA.

The LM4051-N comes in three grades (A, B, and C). The best grade devices (A) have an initial accuracy of 0.1%, while the B-grade have 0.2% and the C-grade 0.5%, all with a tempco of 50 ppm/ ̊C guaranteed from −40 ̊C to 125 ̊C.

The LM4051-N utilizes fuse and zener-zap trim of reference voltage during wafer sort to ensure that the prime parts have an accuracy of better than ± 0.1% (A grade) at 25 ̊C.

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* Data sheet LM4051-N Precision Micropower Shunt Voltage Reference datasheet (Rev. D) PDF | HTML 28 Sep 2018
Application note Precision Current Sources and Sinks Using Voltage References 30 Jun 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019

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Calculation tool

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