High Precision
5 V Reference
a
AD586
FUNCTIO NAL BLO CK D IAGRAM
FEATURES
Laser Trim m ed to High Accuracy:
5.000 V ؎2.0 m V (M Grade)
Trim m ed Tem perature Coefficient:
2 ppm / ؇C m ax, 0؇C to +70؇C (M Grade)
5 ppm / ؇C m ax, –40؇C to +85؇C (B & L Grades)
10 ppm / ؇C m ax, –55؇C to +125؇C (T Grade)
Low Noise, 100 nV/ √Hz
Noise Reduction Capability
Output Trim Capability
MIL-STD-883 Com pliant Versions Available
Industrial Tem perature Range SOICs Available
Output Capable of Sourcing or Sinking 10 m A
P RO D UCT D ESCRIP TIO N
P RO D UCT H IGH LIGH TS
T he AD586 represents a major advance in the state-of-the-art in
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 perfor-
mance at low cost.
1. Laser trimming of both initial accuracy and temperature
coefficients results in very low errors over temperature with-
out the use of external components. T he 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.
T he 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. T he buried Zener approach to reference design pro-
vides lower noise and drift than bandgap voltage references. T he
AD586 offers a noise reduction pin which 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.
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.
T he AD586 is recommended for use as a reference for 8-, 10-,
12-, 14- or 16-bit D/A converters which require an external
precision reference. T he device is also ideal for successive
approximation or integrating A/D converters with up to 14 bits
of accuracy and, in general, can offer better performance than
the standard on-chip references.
5. T he AD586 is available in versions compliant with MIL-
ST D-883. Refer to the Analog Devices Military Products
Databook or current AD586/883B data sheet for detailed
specifications.
T he AD586J, K, L and M are specified for operation from 0°C
to +70°C, the AD586A and B are specified for –40°C to +85°C
operation, and the AD586S and T are specified for –55°C to
+125°C operation. T he AD586J, K, L and M are available in an
8-pin plastic DIP. T he AD586J, K, L, A and B are available in
an 8-pin plastic surface mount small outline (SO) package. T he
AD586J, K, L, S and T are available in an 8-pin cerdip package.
REV. C
Inform ation furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assum ed by Analog Devices for its
use, nor for any infringem ents of patents or other rights of third parties
which m ay result from its use. No license is granted by im plication or
otherwise under any patent or patent rights of Analog Devices.
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Tel: 617/ 329-4700
Fax: 617/ 326-8703