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Analog Devices Semiconductor Electronic Components Datasheet



AD1580

Precision Shunt Voltage Reference


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AD1580 pdf
FEATURES
Wide operating range: 50 µA to 10 mA
Initial accuracy: ±0.1% maximum
Temperature drift: ±50 ppm/°C maximum
Output impedance: 0.5 Ω maximum
Wideband noise (10 Hz to 10 kHz): 20 µV rms
Operating temperature range: −40°C to +85°C
High ESD rating
4 kV human body model
400 V machine model
Compact, surface-mount SOT-23 and SC70 packages
APPLICATIONS
Portable, battery-powered equipment
Cellular phones, notebook computers, PDAs, GPSs,
and DMMs
Computer workstations
Suitable for use with a wide range of video RAMDACs
Smart industrial transmitters
PCMCIA cards
Automotive
3 V/5 V, 8-bit to 12-bit data converters
GENERAL DESCRIPTION
The AD15801 is a low cost, 2-terminal (shunt), precision band
gap reference. It provides an accurate 1.225 V output for input
currents between 50 μA and 10 mA.
The superior accuracy and stability of the AD1580 is made
possible by the precise matching and thermal tracking of
on-chip components. Proprietary curvature correction
design techniques have been used to minimize the nonli-
nearities in the voltage output temperature characteristics.
The AD1580 is stable with any value of capacitive load.
The low minimum operating current makes the AD1580
ideal for use in battery-powered 3 V or 5 V systems. However,
the wide operating current range means that the AD1580 is
extremely versatile and suitable for use in a wide variety of
high current applications.
The AD1580 is available in two grades, A and B, both of which
are provided in the SOT-23 and SC70 packages, the smallest
surface-mount packages available. Both grades are specified
over the industrial temperature range of −40°C to +85°C.
1.2 V Micropower, Precision
Shunt Voltage Reference
AD1580
PIN CONFIGURATIONS
AD1580
V+ 1
3 NC (OR V–)
V– 2
TOP VIEW
NC = NO CONNECT
Figure 1. SOT-23
AD1580
V– 1
3 NC (OR V–)
V+ 2
TOP VIEW
NC = NO CONNECT
Figure 2. SC70
50
45
40
35
30
25
20
15
10
5
0
–40 –30 –20 –10
0
10 20 30 40
TEMPERATURE DRIFT (ppm/°C)
Figure 3. Reverse Voltage Temperature Drift Distribution
300
250
200
150
100
50
0
–10 –8 –6 –4 –2 0 2 4 6 8
OUTPUT ERROR (mV)
Figure 4. Reverse Voltage Error Distribution
10
1 Protected by U.S. Patent No. 5,969,657.
Rev. F
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2003-2011 Analog Devices, Inc. All rights reserved.



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AD1580 pdf
AD1580* Product Page Quick Links
Last Content Update: 11/01/2016
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Documentation
Application Notes
• AN-713: The Effect of Long-Term Drift on Voltage
References
Data Sheet
• AD1580: 1.2 V Micropower, Precision Shunt Voltage
Reference Data Sheet
Tools and Simulations
• AD1580 SPICE Macro-Model
Design Resources
• AD1580 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
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Technical Support
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number
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.



Part Number AD1580
Description Precision Shunt Voltage Reference
Maker Analog Devices - Analog Devices
Total Page 13 Pages
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