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ADR445 データシート(PDF) 1 Page - Analog Devices

部品番号 ADR445
部品情報  Ultralow Noise, High Accuracy
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ホームページ  http://www.analog.com
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ADR445 データシート(HTML) 1 Page - Analog Devices

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Ultralow Noise, High Accuracy
Voltage References
Data Sheet
ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550
Rev. 0
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
www.analog.com
Fax: 781.461.3113
©2012 Analog Devices, Inc. All rights reserved.
FEATURES
Maximum temperature coefficient (TCVOUT): 2 ppm/°C
Output noise (0.1 Hz to 10 Hz)
Less than 1 μV p-p at VOUT of 2.048 V typical
Initial output voltage error: ±0.02% (maximum)
Input voltage range: 3 V to 15 V
Operating temperature: −40°C to +125°C
Output current: +10 mA source/−10 mA sink
Low quiescent current: 950 μA (maximum)
Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V)
8-lead SOIC package
APPLICATIONS
Precision data acquisition systems
High resolution data converters
High precision measurement devices
Industrial instrumentation
Medical devices
Automotive battery monitoring
PIN CONFIGURATION
Figure 1. 8-Lead SOIC
GENERAL DESCRIPTION
The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/
ADR4550 devices are high precision, low power, low noise
voltage references featuring ±0.02% maximum initial error,
excellent temperature stability, and low output noise.
This family of voltage references uses an innovative core
topology to achieve high accuracy while offering industry-leading
temperature stability and noise performance. The low, thermally
induced output voltage hysteresis and low long-term output
voltage drift of the devices also improve system accuracy over
time and temperature variations.
A maximum operating current of 950 μA and a maximum low
dropout voltage of 300 mV allow the devices to function very
well in portable equipment.
The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/
ADR4550 series of references is provided in an 8-lead SOIC
package and is available in a wide range of output voltages, all of
which are specified over the extended industrial temperature
range of −40°C to +125°C.
Table 1. Selection Guide
Model
Output Voltage (V)
ADR4520
2.048
ADR4525
2.5
ADR4530
3.0
ADR4533
3.3
ADR4540
4.096
ADR4550
5.0
Table 2. Voltage Reference Choices from Analog Devices
VOUT (V)
Low Cost/
Low Power
Micropower
Ultralow
Noise
High Voltage,
High Performance
2.048
ADR360
REF191
ADR430
ADR3420
ADR440
2.5
ADR3425
ADR291
ADR431
ADR03
AD1582
REF192
ADR441
AD780
ADR361
5.0
ADR3450
ADR293
ADR435
ADR02
AD1585
REF195
ADR445
AD586
ADR365
NC
1
VIN 2
NC
3
GND
4
TP
8
NC
7
VOUT
6
NC
5
NOTES
1. NC = NO CONNECT.
2. TP = TEST PIN. DO NOT CONNECT.
ADR4520/ADR4525/
ADR4530/ADR4533/
ADR4540/ADR4550
TOP VIEW
(Not to Scale)


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