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LT1389

PRODUCTION

Nanopower Precision Shunt Voltage Reference

Data Sheet Product Selection Table

Part Models: 10
1ku List Price: Starting From $4.46

Viewing:

Overview

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

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

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LT1389ACS8-1.25#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1389ACS8-1.25#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1389BCS8-1.25#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1389BCS8-1.25#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1389BCS8-2.5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1389BCS8-2.5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1389BCS8-4.096#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1389BCS8-4.096#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1389BCS8-5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1389BCS8-5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 8, 2024 - 24_0236 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package
		PCN24_0236_Form Material_Report Marking Comparison Delta Qualification Matrix
LT1389ACS8-1.25#PBF	PRODUCTION
LT1389ACS8-1.25#TRPBF	PRODUCTION
LT1389BCS8-1.25#PBF	PRODUCTION
LT1389BCS8-1.25#TRPBF	PRODUCTION
LT1389BCS8-2.5#PBF	PRODUCTION
LT1389BCS8-2.5#TRPBF	PRODUCTION
LT1389BCS8-4.096#PBF	PRODUCTION
LT1389BCS8-4.096#TRPBF	PRODUCTION
LT1389BCS8-5#PBF	PRODUCTION
LT1389BCS8-5#TRPBF	PRODUCTION
Oct 12, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)
		PCN22_0254_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT1389ACS8-1.25#PBF	PRODUCTION
LT1389ACS8-1.25#TRPBF	PRODUCTION
LT1389BCS8-1.25#PBF	PRODUCTION
LT1389BCS8-1.25#TRPBF	PRODUCTION
LT1389BCS8-2.5#PBF	PRODUCTION
LT1389BCS8-2.5#TRPBF	PRODUCTION
LT1389BCS8-4.096#PBF	PRODUCTION
LT1389BCS8-4.096#TRPBF	PRODUCTION
LT1389BCS8-5#PBF	PRODUCTION
LT1389BCS8-5#TRPBF	PRODUCTION
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
		PCN21_0060_Form Material_Report Delta Qualification Matrix
LT1389ACS8-1.25#PBF	PRODUCTION
LT1389ACS8-1.25#TRPBF	PRODUCTION
LT1389BCS8-1.25#PBF	PRODUCTION
LT1389BCS8-1.25#TRPBF	PRODUCTION
LT1389BCS8-2.5#PBF	PRODUCTION
LT1389BCS8-2.5#TRPBF	PRODUCTION
LT1389BCS8-4.096#PBF	PRODUCTION
LT1389BCS8-4.096#TRPBF	PRODUCTION
LT1389BCS8-5#PBF	PRODUCTION
LT1389BCS8-5#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

LTspice 1

LTC2066/LT1389 Demo Circuit - Precision Ultralow Power High Side Current Sense

Models for the following parts are available in LTspice:

LT1389-1.25
LT1389-2.5
LT1389-4.096
LT1389-5

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.

Reference Designs

View Detailed Reference Design

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