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ADR381

PRODUCTION

2.048 V and 2.5 V Bandgap Voltage References

Data Sheet (Rev. C) Product Selection Table

Part Models: 2
1ku List Price: Starting From $0.92

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Overview

Initial accuracy: ±5 mV/±6 mV maximum
Initial accuracy error: ±0.24%/±0.24%
Low TCV_OUT: 25 ppm/°C maximum
Load regulation: 70 ppm/mA
Line regulation: 25 ppm/V

Wide operating ranges
2.4 V to 18 V for ADR380
2.8 V to 18 V for ADR381
Low power: 120 μA maximum
High output current: 5 mA
Wide temperature range: −40°C to +85°C
Tiny 3-lead SOT-23 package with standard pinout

The ADR380 and ADR381 are precision 2.048 V and 2.500 V band gap voltage references featuring high accuracy, high stability, and low power consumption in a tiny footprint. Patented temperature drift curvature correction techniques minimize nonlinearity of the voltage change with temperature. The wide operating range and low power consumption make them ideal for 3 V to 5 V battery-powered applications.

The ADR380 and ADR381 are micropower, low dropout voltage (LDV) devices that provide a stable output voltage from supplies as low as 300 mV above the output voltage. They are specified over the industrial (−40°C to +85°C) temperature range. The ADR380/ADR381 are available in the tiny 3-lead SOT-23 package.

Part Models: 2
1ku List Price: Starting From $0.92

Documentation

Data Sheet 1

ADR380/ADR381: Precision Low Drift 2.048 V/2.500 V SOT-23 Voltage Reference Data Sheet (Rev.C) 10/14/2010

Application Note 1

AN-1505: Using the AD7328 8-Channel ADC in Applications with Single-Ended Industrial-Level Signals 09/03/2025

Frequently Asked Question 1

FAQ 03/14/2015

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
ADR381ARTZ-R2	3-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADR381ARTZ-REEL7	3-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 8, 2025 - 25_0087 Qualification of Wafer Fabrication Site at Analog Devices, Inc. Camas for CBCMOS1 Products
		PCN25_0087_Form Material_Report Delta Qualification Matrix Qualification Results Summary
ADR381ARTZ-R2	PRODUCTION
ADR381ARTZ-REEL7	PRODUCTION
Feb 4, 2010 - 10_0009 Halogen Free Material Change for SOT_23 Products
		Material_Report PCN10_0009_Form SOT23 Qualification Data
ADR381ARTZ-REEL7	PRODUCTION	Material_Report PCN10_0009_Form SOT23 Qualification Data