High Precision
5 V Reference
AD586
FEATURES
The AD586J, AD586K, AD586L, and AD586M are available in
an 8-lead PDIP; the AD586J, AD586K, AD586L, AD586A, and
AD586B are available in an 8-lead SOIC package; and the
AD586J, AD586K, AD586L, AD586S, and AD586T are
available in an 8-lead CERDIP package.
Laser trimmed to high accuracy
5.000 V 2.0 mV (M grade)
Trimmed temperature coefficient
2 ppm/°C max, 0°C to 70°C (M grade)
5 ppm/°C max, −40°C to +85°C (B and L grades)
10 ppm/°C max, −55°C to +125°C (T grade)
Low noise, 100 nV/√Hz
V
IN
NOISE REDUCTION
8
2
AD586
Noise reduction capability
Output trim capability
R
Z1
R
S
A1
6
5
V
MIL-STD-883-compliant versions available
Industrial temperature range SOICs available
Output capable of sourcing or sinking 10 mA
OUT
R
Z2
R
F
R
T
TRIM
R
I
GENERAL DESCRIPTION
4
The AD586 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 AD586 provides outstanding perform-
ance at low cost.
GND
NOTES
1. PINS 1, 3, AND 7 ARE INTERNAL TEST POINTS.
MAKE NO CONNECTIONS TO THESE POINTS.
Figure 1.
PRODUCT HIGHLIGHTS
The AD586 offers much higher performance than most other
5 V references. Because the AD586 uses an industry-standard
pinout, many systems can be upgraded instantly with the
AD586.
1. Laser trimming of both initial accuracy and temperature
coefficients results in very low errors over temperature
without the use of external components. The AD586M has
a maximum deviation from 5.000 V of 2.45 mV between
0°C and 70°C, and the AD586T guarantees 7.5 mV
maximum total error between −55°C and +125°C.
The buried Zener approach to reference design provides lower
noise and drift than band gap voltage references. The AD586
offers a noise reduction pin that can be used to further reduce
the noise level generated by the buried Zener.
2. For applications requiring higher precision, an optional
fine-trim connection is provided.
The AD586 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 integrating ADCs with up to 14 bits of accuracy and, in
general, can offer better performance than the standard on-chip
references.
3. Any system using an industry-standard pinout reference
can be upgraded instantly with the AD586.
4. Output noise of the AD586 is very low, typically 4 µV p-p.
A noise reduction pin is provided for additional noise
filtering using an external capacitor.
The AD586J, AD586K, AD586L, and AD586M are specified for
operation from 0°C to 70°C; the AD586A and AD586B are
specified for −40°C to +85°C operation; and the AD586S and
AD586T are specified for −55°C to +125°C operation.
5. The AD586 is available in versions compliant with
MIL-STD-883. Refer to the Analog Devices Military
Products Databook or the current AD586/883B data sheet
for detailed specifications.
Rev. G
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.
Specifications subject to change without notice. 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
Fax: 781.461.3113
www.analog.com
© 2005 Analog Devices, Inc. All rights reserved.
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