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ADR512 Fiches technique(PDF) 1 Page - Analog Devices

No de pièce ADR512
Description  1.2 V Precision Low Noise Shunt Voltage Reference
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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ADR512 Fiches technique(HTML) 1 Page - Analog Devices

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1.2 V Precision Low Noise
Shunt Voltage Reference
Data Sheet
ADR512
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
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
©2003–2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
FEATURES
Precision 1.200 V Voltage Reference
Ultracompact 3 mm × 3 mm SOT-23 Package
No External Capacitor Required
Low Output Noise: 4 µV p-p (0.1 Hz to 10 Hz)
Initial Accuracy: ±0.3% Max
Temperature Coefficient: 60 ppm/°C Max
Operating Current Range: 100 µA to 10 mA
Output Impedance: 0.3 Ω Max
Temperature Range: −40°C to +85°C
APPLICATIONS
Precision Data Acquisition Systems
Battery-Powered Equipment:
Cellular Phone, Notebook Computer, PDA,
and GPS
3 V/5 V, 8-/12-Bit Data Converters
Portable Medical Instruments
Industrial Process Control Systems
Precision Instruments
PIN CONFIGURATION
NC = NO CONNECT. DO NOT
CONNECT TO THIS PIN.
V+
1
V–
2
TRIM/NC
3
ADR512
TOP VIEW
(Not to Scale)
Figure 1. 3-Lead SOT-23
Table 1.
Output
Voltage (VO)
Initial
Accuracy
Temperature
Coefficient
(ppm/°C)
Model
(mV)
(%)
ADR512ARTZ-REEL7
1.200
3.5
0.3
60
GENERAL DESCRIPTION
Designed for space critical applications, the ADR512 is a low
voltage (1.200 V), precision shunt-mode voltage reference in the
ultracompact (3 mm × 3 mm) SOT-23 package. The ADR512
features low temperature drift (60 ppm/°C), high accuracy
(±0.30%), and ultralow noise (4 µV p-p) performance.
The ADR512’s advanced design eliminates the need for an
external capacitor, yet it is stable with any capacitive load. The
minimum operating current increases from a scant 100 µA to a
maximum of 10 mA. This low operating current and ease of use
make the ADR512 ideally suited for handheld battery-powered
applications.
A TRIM terminal is available on the ADR512 to provide
adjustment of the output voltage over ±0.5% without affecting
the temperature coefficient of the device. This feature provides
users with the flexibility to trim out any system errors.
ADR512
VOUT = 1.2V
IQ
IL + IQ
RBIAS
VS
IL
COUT
(OPTIONAL)
RBIAS =
VS – VOUT
IL + IQ
Figure 2. Typical Operating Circuit


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