Maxim LM4040 Precision Shunt Voltage Reference Datasheet

The LM4040 is a precision two-terminal shunt mode, bandgap voltage reference available in fixed reverse breakdown voltages of 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V.


Maxim LM4040 Precision Shunt Voltage Reference Datasheet - cover page
Brand
Maxim
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
15
File format
PDF
File size
574 KB
Published
05 July, 2012
Updated
30 September, 2023
Model
LM4040
MD5 checksum
5076C16CDFF2FDAC00D4589426CF08BF

About this manual

The LM4040 is an improved precision micropower shunt voltage reference designed for space-critical applications. It offers six fixed reverse breakdown voltages: 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. The device is available in a subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm), which is 50% smaller than comparable SOT23 packages.

Laser-trimmed resistors ensure precise initial accuracy with four grades ranging from 0.1% to 1%. The device features a temperature coefficient of 100ppm/°C and operates over a wide range of -40°C to +125°C. It supports shunt currents from 60µA to 15mA without requiring an external stabilizing capacitor.

What's inside

  • General Description
  • Applications
  • Features
  • Pin Configuration
  • Ordering Information
  • Absolute Maximum Ratings
  • Electrical Characteristics (2.048V)
  • Electrical Characteristics (2.500V)
  • Electrical Characteristics (3.000V)
  • Electrical Characteristics (3.300V)

Specifications

Reverse Breakdown Voltages2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V
Temperature Coefficient100ppm/°C
Initial Accuracy Grades0.1% to 1%
Shunt Current Range60µA to 15mA
Operating Temperature Range (Extended)-40°C to +125°C

Frequently asked questions

Does the LM4040 require an external stabilizing capacitor?

No, it does not require an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the maximum operating temperature range for the LM4040?

The device is guaranteed to operate over a temperature range of -40°C to +125°C.

What are the fixed reverse breakdown voltages available for this device?

The LM4040 is available in fixed reverse breakdown voltages of 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V.

What is the wide operating current range for the LM4040?

The device has a shunt current capability ranging from 60µA to 15mA.

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