LT1389
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LT1389

Nanopower Precision Shunt Voltage Reference

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Part Details
Part Models 10
1ku List Price Starting From $4.46
Features
  • Initial Voltage Accuracy: 0.05%
  • Low Operating Current: 800nA
  • Low Drift: 10ppm/°C Max
  • Less Than 1Ω Dynamic Impedance
  • Available in 1.25V, 2.5V, 4.096V and 5V SO-8 Packages
Additional Details
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The LT1389 is a nanopower, precision shunt voltage reference. The bandgap reference uses trimmed precision thin-film resistors and improved curvature correction techniques to achieve 0.05% initial voltage accuracy with guaranteed 10ppm/°C maximum temperature drift. Voltage regulation is maintained to an ultralow 800nA operating current. Advances in design, processing and packaging achieve low temperature cycling hysteresis.

The LT1389 does not require an output compensation capacitor, but is stable with capacitive loads. Low dynamic impedance makes the LT1389 reference easy to use from unregulated supplies.

The LT1389 reference can be used as a high performance upgrade to the LM185/LM385, LT1004, LT1034 and LT1634 where lowest power and guaranteed temperature drift are required.

Applications

  • Portable Meters
  • Precision Regulators
  • A/D and D/A Converters
  • Calibrators
Part Models 10
1ku List Price Starting From $4.46

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Oct 12, 2022

- 22_0254

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

LT1389ACS8-1.25#PBF

PRODUCTION

LT1389ACS8-1.25#TRPBF

PRODUCTION

LT1389BCS8-1.25#PBF

PRODUCTION

LT1389BCS8-1.25#TRPBF

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LT1389BCS8-2.5#PBF

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LT1389BCS8-4.096#PBF

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LT1389BCS8-5#PBF

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LT1389BCS8-5#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1389ACS8-1.25#PBF

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LT1389ACS8-1.25#TRPBF

PRODUCTION

LT1389BCS8-1.25#PBF

PRODUCTION

LT1389BCS8-1.25#TRPBF

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LT1389BCS8-2.5#PBF

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LT1389BCS8-4.096#PBF

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PCN

Oct 12, 2022

- 22_0254

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Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

LT1389ACS8-1.25#PBF

PRODUCTION

LT1389ACS8-1.25#TRPBF

PRODUCTION

LT1389BCS8-1.25#PBF

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LT1389BCS8-1.25#TRPBF

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LT1389BCS8-2.5#PBF

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LT1389BCS8-4.096#PBF

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LT1389BCS8-4.096#TRPBF

PRODUCTION

LT1389BCS8-5#PBF

PRODUCTION

LT1389BCS8-5#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

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Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1389ACS8-1.25#PBF

PRODUCTION

LT1389ACS8-1.25#TRPBF

PRODUCTION

LT1389BCS8-1.25#PBF

PRODUCTION

LT1389BCS8-1.25#TRPBF

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LT1389BCS8-2.5#PBF

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LT1389BCS8-2.5#TRPBF

PRODUCTION

LT1389BCS8-4.096#PBF

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Software & Part Ecosystem

Software & Part Ecosystem

Tools & Simulations

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Reference Designs

Reference Designs 1

Arria 10 SoC - Top View

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altera-arria-10-soc-development-kit

altera-arria-10-soc-development-kit

Circuits from the lab

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Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link

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