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ADR1581 Fiches technique(PDF) 1 Page - Analog Devices

No de pièce ADR1581
Description  1.25 V Micropower, Precision Shunt Voltage Reference
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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ADR1581 Fiches technique(HTML) 1 Page - Analog Devices

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1.25 V Micropower, Precision Shunt
Voltage Reference
ADR1581
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
©2007 Analog Devices, Inc. All rights reserved.
PIN CONFIGURATION
FEATURES
Wide operating range: 60 μA to 10 mA
NC = NO CONNECT
TOP VIEW
V+ 1
V– 2
NC (OR V–)
3
ADR1581
Initial accuracy: ±0.12% 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
Figure 1. SOT-23
4 kV human body model
0
2
4
6
8
10
12
14
16
18
20
TEMPERATURE DRIFT (ppm/°C)
–20
–10
0
10
20
400 V machine model
Compact, surface-mount SOT-23 package
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
Figure 2. Reverse Voltage Temperature Drift Distribution
The ADR15811 is a low cost, 2-terminal (shunt), precision band
gap reference. It provides an accurate 1.250 V output for input
currents between 60 μA and 10 mA.
0
10
20
30
40
50
60
70
80
90
100
OUTPUT ERROR (mV)
–5
–4
–3
–2
–1
0
1
2
3
4
5
The superior accuracy and stability of the ADR1581 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 nonlinearities in
the voltage output temperature characteristics. The ADR1581
is stable with any value of capacitive load.
The low minimum operating current makes the ADR1581 ideal
for use in battery-powered 3 V or 5 V systems. However, the wide
operating current range means that the ADR1581 is extremely
versatile and suitable for use in a wide variety of high current
applications.
Figure 3. Reverse Voltage Error Distribution
The ADR1581 is available in two grades, A and B, both of which
are provided in the SOT-23 package. Both grades are specified
over the industrial temperature range of −40°C to +85°C.
1 Protected by U.S. Patent No. 5,969,657; other patents pending.


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