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Product details

Parameters

VO (V) 2.5, 4.096 Reference voltage Fixed Initial accuracy (Max) (%) 0.05, 0.1, 0.15 Rating Catalog VO adj (Min) (V) 2.5 VO adj (Max) (V) 4.096 Iz for regulation (Min) (uA) 120 Temp coeff (Max) (ppm/ degree C) 10, 20, 30 Operating temperature range (C) -40 to 125 Iout/Iz (Max) (mA) 30 open-in-new Find other Shunt voltage references

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Shunt voltage references

Features

  • High Output Voltage Accuracy 0.05%
  • Low Temperature Coefficient 10 ppm/°C
  • Extended Temperature Operation -40-125°C
  • Excellent Thermal Hysteresis, 75ppm
  • Excellent Long-Term Stability, 40ppm
  • High Immunity to Board Stress Effects
  • Capable of Handling 50 mA Transients
  • Voltage Options 2.5V, 4.096V
  • SOT-23 Package

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Description

The LM4030 is an ultra-high precision shunt voltage reference, having exceptionally high initial accuracy (0.05%) and temperature stability (10ppm/°C). The LM4030 is available with fixed voltage options of 2.5V and 4.096V. Despite the tiny SOT-23 package, the LM4030 exhibits excellent thermal hysteresis (75ppm) and long-term stability (40ppm) as well as immunity to board stress effects.

The LM4030 is designed to operate without an external capacitor, but any capacitor up to 10µF may be used. The LM4030 can be powered off as little as 120µA (max) but is capable of shunting up to 30mA continuously. As with any shunt reference, the LM4030 can be powered off of virtually any supply and is a simple way to generate a highly accurate system reference.

The LM4030 is available in three grades (A, B, and C). The best grade devices (A) have an initial accuracy of 0.05% with ensured temperature coefficient of 10 ppm/°C or less, while the lowest grade parts (C) have an initial accuracy of 0.15% and a temperature coefficient of 30 ppm/°C.

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Technical documentation

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Type Title Date
* Datasheet LM4030 SOT-23 Ultra-High Precision Shunt Voltage Reference datasheet (Rev. B) Mar. 29, 2013
More literature Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
White papers Voltage reference selection basics white paper (Rev. A) Oct. 23, 2018
Technical articles Find the "Goldilocks" voltage reference for your application Sep. 02, 2016
Selection guides Voltage Reference Overview Jul. 26, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODELS Download
SNVM436.ZIP (22 KB) - PSpice Model
SIMULATION MODELS Download
SNVM437.ZIP (23 KB) - PSpice Model
SIMULATION MODELS Download
SNVM438.ZIP (22 KB) - PSpice Model
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SNVM439.ZIP (23 KB) - PSpice Model
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SNVM440.ZIP (23 KB) - PSpice Model
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SNVM441.ZIP (23 KB) - PSpice Model
SIMULATION MODELS Download
SNVM442.TSC (86 KB) - TINA-TI Reference Design
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SNVM443.ZIP (4 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SNVM444.ZIP (4 KB) - TINA-TI Spice Model
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SNVM445.TSC (86 KB) - TINA-TI Reference Design
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SNVM983.ZIP (1 KB) - PSpice Model
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SNVM984.ZIP (1 KB) - PSpice Model
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SNVM985.ZIP (1 KB) - PSpice Model
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SNVM986.ZIP (1 KB) - PSpice Model
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SNVM987.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SNVM988.ZIP (1 KB) - PSpice Model
CALCULATION TOOLS Download
Shunt voltage reference external resistor quick-start calculator
SHUNT_VOLTAGE_REFERENCE_RESISTOR_CALCULATOR This external resistor quick-start calculator tool lets you easily calculate valid external resistor values relative to voltage reference, supply and load-current bounds. With these inputs, you can instantly view the resulting calculations and use the color-coded indications to understand (...)
Features
  • Case-specific tool to calculate external resistor value associated with shunt voltage reference
  • Input fields for: voltage reference, supply voltage, load current and Iq bound values
  • Real-time effects of input values on schematic
  • Quick indicators notifying user of valid and invalid outputs
  • Error messages (...)
CALCULATION TOOLS Download
SNVC184.ZIP (53 KB)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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Videos

Voltage Reference Use Cases

Beyond the scope of signal chain conditioning, see other voltage reference use cases in this informative video.

Posted: 07-Jan-2018
Duration: 05:53

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