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Parameters

VO (V) 1.8, 2.048, 2.5, 3, 3.3, 4.096 Initial accuracy (Max) (%) 0.05, 0.1, 0.2, 0.4 Temp coeff (Max) (ppm/ degree C) 10, 20, 30 Rating Catalog Vin (Min) (V) 2.2 Vin (Max) (V) 5.5 Iq (Typ) (uA) 60 Features Enable pin Iout/Iz (Max) (mA) 20 Operating temperature range (C) -40 to 125 Shutdown current (Typ) (uA) 3 open-in-new Find other Series voltage references

Package | Pins | Size

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

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
  • Output Initial Voltage Accuracy: 0.05%
  • Low Temperature Coefficient: 10 ppm/°C
  • Low Supply Current: 60 µA
  • Enable Pin Allowing a 3-µA Shutdown Mode
  • 20-mA Output Current
  • Voltage Options: 1.8 V, 2.048 V, 2.5 V, 3 V, 3.3 V, 4.096 V
  • Custom Voltage Options Available (1.8 V to 4.096 V)
  • VIN Range of VREF + 400 mV to 5.5 V at 10 mA
  • Stable With Low-ESR Ceramic Capacitors
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Description

The LM4132 family of precision voltage references performs comparable to the best laser-trimmed bipolar references, but in cost-effective CMOS technology. The key to this breakthrough is the use of EEPROM registers for correction of curvature, temperature coefficient (tempco), and accuracy on a CMOS band-gap architecture allowing package-level programming to overcome assembly shift. The shifts in voltage accuracy and tempco during assembly of die into plastic packages limit the accuracy of references trimmed with laser techniques.

Unlike other LDO references, the LM4132 can deliver up to 20 mA and does not require an output capacitor or buffer amplifier. These advantages along with the SOT-23 packaging are important for space-critical applications.

Series references provide lower power consumption than shunt references, because they do not have to idle the maximum possible load current under no-load conditions. This advantage, the low quiescent current (60 µA), and the low dropout voltage (400 mV) make the LM4132 ideal for battery-powered solutions.

The LM4132 is available in five grades (A, B, C, D and E) for greater flexibility. The best grade devices (A) have an initial accuracy of 0.05% with a specified temperature coefficient of 10 ppm/°C or less, while the lowest grade devices (E) have an initial accuracy of 0.5% and a tempco of 30 ppm/°C.

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REF3425 ACTIVE 2.5-V low-drift low-power small-footprint series voltage reference Better temperature drift, lower noise and wider VIN for the 2.5-V output option
REF3430 ACTIVE 3-V Low-drift low-power small-footprint series voltage reference Better temperature drift, lower noise and wider VIN for the 3-V output option
REF3433 ACTIVE 3.3-V Low-drift low-power small-footprint series voltage reference Better temperature drift, lower noise and wider VIN for the 3.3-V output option
REF3440 ACTIVE 4.1-V low-drift low-power small-footprint series voltage reference Better temperature drift, lower noise and wider VIN for the 4.096-V output option
Similar but not functionally equivalent to the compared device:
REF2041 ACTIVE 4.1-V Vref, low-drift, low-power, dual-output Vref & Vref/2 voltage reference Better temperature drift, lower noise, wider VIN dual-channel device with 2.048-V and 4.096-V outputs

Technical documentation

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Type Title Date
* Datasheet LM4132, LM4132-Q1 SOT-23 Precision Low Dropout Voltage Reference datasheet (Rev. G) Oct. 13, 2016
White papers 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
Application notes LM4132, LM4132-Q1 Pin FMEA Mar. 12, 2018
Technical articles Find the "Goldilocks" voltage reference for your application Sep. 02, 2016
Technical articles A Reference for Voltage References Aug. 09, 2014
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.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost

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SOT-23 (DBV) 5 View options

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