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AD587KR Scheda tecnica(PDF) 1 Page - Analog Devices

Il numero della parte AD587KR
Spiegazioni elettronici  High Precision 10 V Reference
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD587KR Scheda tecnica(HTML) 1 Page - Analog Devices

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High Precision 10 V Reference
AD587
Rev. H
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
©1998–2007 Analog Devices, Inc. All rights reserved.
FEATURES
Laser trimmed to high accuracy
10.000 V ± 5 mV (U grade)
Trimmed temperature coefficient
5 ppm/°C maximum (U grade)
Noise-reduction capability
Low quiescent current: 4 mA maximum
Output trim capability
MIL-STD-883-compliant versions available
FUNCTIONAL BLOCK DIAGRAM
8
2
6
4
5
RT
RI
AD587
A1
+VIN
NOISE
REDUCTION
VOUT
TRIM
GND
NOTE
PIN 1, PIN 3, AND PIN 7 ARE INTERNAL TEST
POINTS. NO CONNECTIONS TO THESE POINTS.
RF
RS
Figure 1.
GENERAL DESCRIPTION
The AD587 represents a major advance in state-of-the-art
monolithic voltage references. Using a proprietary ion-
implanted buried Zener diode and laser wafer trimming of high
stability thin-film resistors, the AD587 provides outstanding
performance at low cost.
The AD587 offers much higher performance than most other
10 V references. Because the AD587 uses an industry-standard
pinout, many systems can be upgraded instantly with the AD587.
The buried Zener approach to reference design provides lower
noise and drift than band gap voltage references. The AD587
offers a noise-reduction pin that can be used to further reduce
the noise level generated by the buried Zener.
The AD587 is recommended for use as a reference for 8-bit,
10-bit, 12-bit, 14-bit, or 16-bit DACs that require an external
precision reference. The device is also ideal for successive
approximation or integrating ADCs with up to 14 bits of
accuracy. In general, it offers better performance than standard
on-chip references.
The AD587J and AD587K are specified for operation from 0°C
to 70°C, and the AD587U is specified for operation from −55°C
to +125°C. The AD587JQ and AD587UQ models are available
in 8-lead CERDIP. Other models are available in an 8-lead SOIC
package for surface-mount applications, or in an 8-lead PDIP.
PRODUCT HIGHLIGHTS
1.
Laser trimming of both initial accuracy and temperature
coefficients. This laser trimming results in very low errors
over temperature without the use of external components.
The AD587U guarantees ±14 mV maximum total error
between −55°C and +125°C.
2.
Optional fine trim connection. This connection is designed
for applications requiring higher precision.
3.
Instant upgrade of any system using an industry-standard
pinout 10 V reference.
4.
Very low output noise. AD587 output noise is typically
4 μV p-p. A noise-reduction pin is provided for additional
noise filtering using an external capacitor.
5.
MIL-STD-883-compliant versions available. Refer to the
Analog Devices Military/Aerospace Reference Manual for
detailed specifications.


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