ADR381ARTZ-REEL7 Analog Devices Inc, ADR381ARTZ-REEL7 Datasheet

IC VREF PREC 2.5V LW DRIFT SOT23

ADR381ARTZ-REEL7

Manufacturer Part Number
ADR381ARTZ-REEL7
Description
IC VREF PREC 2.5V LW DRIFT SOT23
Manufacturer
Analog Devices Inc
Series
ADR38r
Datasheet

Specifications of ADR381ARTZ-REEL7

Temperature Coefficient
25ppm/°C
Reference Type
Series
Voltage - Output
2.5V
Tolerance
±0.24%
Voltage - Input
2.8 ~ 18 V
Number Of Channels
1
Current - Quiescent
120µA
Current - Output
5mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
Topology
Series
Input Voltage
2.8V To 15V
Reference Voltage
2.5V
Reference Voltage Tolerance
6mV
Voltage Reference Case Style
SOT-23
No. Of Pins
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Cathode
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
ADR381ARTZ-REEL7TR

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FEATURES
Initial accuracy: ±5 mV/±6 mV maximum
Initial accuracy error: ±0.24%/±0.24%
Low TCV
Load regulation: 70 ppm/mA
Line regulation: 25 ppm/V
Wide operating ranges
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
APPLICATIONS
Battery-powered instrumentation
Portable medical instruments
Data acquisition systems
Industrial process control systems
Hard disk drives
Automotive
GENERAL DESCRIPTION
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.
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
2.4 V to 18 V for ADR380
2.8 V to 18 V for ADR381
OUT
: 25 ppm/°C maximum
Precision Low Drift 2.048 V/2.500 V
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Table 1. ADR38x Products
Part Number
ADR380
ADR381
SOT-23 Voltage Reference
©2001–2010 Analog Devices, Inc. All rights reserved.
V
PIN CONFIGURATION
OUT
V
IN
Figure 1. 3-Lead SOT-23
Nominal Output Voltage (V)
2.048
2.500
1
2
(Not to Scale)
ADR380/
ADR381
TOP VIEW
(RT Suffix)
ADR380/ADR381
3
GND
www.analog.com

Related parts for ADR381ARTZ-REEL7

ADR381ARTZ-REEL7 Summary of contents

Page 1

FEATURES Initial accuracy: ±5 mV/±6 mV maximum Initial accuracy error: ±0.24%/±0.24% Low TCV : 25 ppm/°C maximum OUT Load regulation: 70 ppm/mA Line regulation: 25 ppm/V Wide operating ranges 2 for ADR380 2 ...

Page 2

ADR380/ADR381 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Pin Configuration ............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 ADR380 Electrical Characteristics ............................................. 3 ADR381 Electrical Characteristics ............................................. 4 Absolute Maximum Ratings ............................................................ 5 ...

Page 3

SPECIFICATIONS ADR380 ELECTRICAL CHARACTERISTICS 25°C, unless otherwise noted Table 2. Parameter Output Voltage Initial Accuracy Error Temperature Coefficient Minimum Supply Voltage Headroom Line Regulation Load Regulation Quiescent Current Voltage Noise Turn-On Settling ...

Page 4

ADR380/ADR381 ADR381 ELECTRICAL CHARACTERISTICS 25°C, unless otherwise noted Table 4. Parameter Output Voltage Initial Accuracy Error Temperature Coefficient Minimum Supply Voltage Headroom Line Regulation Load Regulation Quiescent Current Voltage Noise Turn-On Settling ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 6. 1 Parameter Supply Voltage Output Short-Circuit Duration to GND V > ≤ Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 Sec) 1 Absolute ...

Page 6

ADR380/ADR381 TYPICAL PERFORMANCE CHARACTERISTICS 2.054 2.052 SAMPLE 1 2.050 2.048 SAMPLE 3 2.046 2.044 2.042 –40 – TEMPERATURE (°C) Figure 2. ADR380 Output Voltage vs. Temperature 2.506 2.504 2.502 SAMPLE 1 2.500 SAMPLE 3 SAMPLE 2 2.498 2.496 ...

Page 7

I = 0mA TO 5mA LOAD –40 – TEMPERATURE (°C) Figure 8. ADR380 Load Regulation vs. Temperature 5mA LOAD ...

Page 8

ADR380/ADR381 60 TEMPERATURE +25°C –40°C +85° –260 –200 –140 –80 –20 40 100 160 220 280 340 400 HYSTERESIS (ppm) Figure 14. ADR381 V Hysteresis OUT 2µV/DIV 1 TIME (1s/DIV) Figure 15. ADR381 Typical ...

Page 9

C = 1nF L V OUT 2 LOAD OFF V LOAD 1 I LOAD TIME (200µs/DIV) Figure 20. ADR381 Load Transient Response with 100nF L V OUT 2 LOAD OFF V LOAD 1 I LOAD TIME (200µs/DIV) ...

Page 10

ADR380/ADR381 TERMINOLOGY Temperature Coefficient The change of output voltage over the operating temperature change and normalized by the output voltage at 25°C, expressed in ppm/°C. The equation follows − OUT OUT TCV ° = ...

Page 11

THEORY OF OPERATION Band gap references are the high performance solution for low supply voltage and low power voltage reference applications, and the ADR380/ADR381 are no exception. However, the uniqueness of this product lies in its architecture. As shown in ...

Page 12

ADR380/ADR381 APPLICATIONS INFORMATION STACKING REFERENCE ICs FOR ARBITRARY OUTPUTS Some applications may require two reference voltage sources, which are a combined sum of standard outputs. The following circuit shows how this stacked output reference can be implemented ...

Page 13

PRECISION HIGH CURRENT VOLTAGE SOURCE In some cases, the user may want higher output current delivered to a load and still achieve better than 0.5% accuracy from the ADR380/ADR381. The accuracy for a reference is normally specified on the data ...

Page 14

... Temperature Range ADR380ARTZ-REEL7 −40°C to +85°C ADR381ARTZ-R2 −40°C to +85°C ADR381ARTZ-REEL7 −40°C to +85° RoHS Compliant Part, # denotes RoHS compliant product may be top or bottom marked. 2 Prior to Date Code 0542, the ADR380ARTZ-REEL7 parts were branded with R2A without the #. ...

Page 15

NOTES Rev Page ADR380/ADR381 ...

Page 16

ADR380/ADR381 NOTES ©2001–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02175-0-10/10(C) Rev Page ...

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