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AD587 Datasheet(PDF) 1 Page - Analog Devices

Part # AD587
Description  High Precision 10 V Reference
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD587 Datasheet(HTML) 1 Page - Analog Devices

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REV. F
AD587
High Precision
10 V Reference
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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© 2004 Analog Devices, Inc. All rights reserved.
FEATURES
Laser Trimmed to High Accuracy:
10.000 V
5 mV (L and U Grades)
Trimmed Temperature Coefficient:
5 ppm/ C Max (L and U Grades)
Noise Reduction Capability
Low Quiescent Current: 4 mA Max
Output Trim Capability
MIL-STD-883 Compliant Versions Available
FUNCTIONAL BLOCK DIAGRAM
8
2
6
4
5
RT
RF
RI
RS
AD587
A1
+VIN
NOISE
REDUCTION
VOUT
TRIM
GND
NOTE
PINS 1, 3, AND 7 ARE INTERNAL TEST POINTS.
NO CONNECTIONS TO THESE POINTS.
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-, 10-, 12-,
14-, or 16-bit DACs that require an external precision reference.
The device is also ideal for successive approximation or integrat-
ing ADCs with up to 14 bits of accuracy and, in general, can
offer better performance than the standard on-chip references.
The AD587J, AD587K, and AD587L are specified for operation
from 0
°C to 70°C, and the AD587U is specified for –55°C to
+125
°C operation. All grades are available in 8-lead CERDIP.
The J and K versions are also available in an 8-lead SOIC package
for surface-mount applications, while the J, K, and L grades also
come in an 8-lead PDIP.
PRODUCT HIGHLIGHTS
1. Laser trimming of both initial accuracy and temperature
coefficients results in very low errors over temperature without
the use of external components. The AD587L has a maximum
deviation from 10.000 V of
±8.5 mV between 0°C and 70°C,
and the AD587U guarantees
±14 mV maximum total error
between –55
°C and +125°C.
2. For applications requiring higher precision, an optional fine
trim connection is provided.
3. Any system using an industry-standard pinout 10 V reference
can be upgraded instantly with the AD587.
4. Output noise of the AD587 is very low, typically 4
µV p-p.
A noise reduction pin is provided for additional noise filtering
using an external capacitor.
5. The AD587 is available in versions compliant with
MIL-STD-883. Refer to the Analog Devices Military Products
Databook or the current AD587/883B Data Sheet for detailed
specifications.


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