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Analog Devices Semiconductor Electronic Components Datasheet

AD581 Datasheet

High Precision 10 V IC Reference

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AD581 pdf
a
FEATURES
Laser Trimmed to High Accuracy:
10.000 Volts ؎5 mV (L and U)
Trimmed Temperature Coefficient:
5 ppm/؇C max, 0؇C to +70؇C (L)
10 ppm/؇C max, –55؇C to +125؇C (U)
Excellent Long-Term Stability:
25 ppm/1000 hrs. (Noncumulative)
Negative 10 Volt Reference Capability
Low Quiescent Current: 1.0 mA max
10 mA Current Output Capability
3-Terminal TO-5 Package
MIL-STD-883 Compliant Versions Available
High Precision
10 V IC Reference
AD581*
FUNCTIONAL BLOCK DIAGRAM
PRODUCT DESCRIPTION
The AD581 is a three-terminal, temperature compensated,
monolithic bandgap voltage reference which provides a precise
10.00 volt output from an unregulated input level from 12 to 30
volts. Laser Wafer Trimming (LWT) is used to trim both the
initial error at +25°C as well as the temperature coefficient,
which results in high precision performance previously available
only in expensive hybrids or oven-regulated modules. The 5 mV
initial error tolerance and 5 ppm/°C guaranteed temperature co-
efficient of the AD581L represent the best performance combi-
nation available in a monolithic voltage reference.
The bandgap circuit design used in the AD581 offers several ad-
vantages over classical Zener breakdown diode techniques. Most
important, no external components are required to achieve full
accuracy and stability of significance to low power systems. In
addition, total supply current to the device, including the output
buffer amplifier (which can supply up to 10 mA) is typically
750 µA. The long-term stability of the bandgap design is equiva-
lent or superior to selected Zener reference diodes.
The AD581 is recommended for use as a reference for 8-, 10- or
12-bit D/A converters which require an external precision refer-
ence. The device is also ideal for all types of A/D converters up
to 14-bit accuracy, either successive approximation or integrat-
ing designs, and in general can offer better performance than
that provided by standard self-contained references.
The AD581J, K, and L are specified for operation from 0°C to
+70°C; the AD581S, T, and U are specified for the –55°C to
+125°C range. All grades are packaged in a hermetically sealed
three-terminal TO-5 metal can.
PRODUCT HIGHLIGHTS
1. Laser trimming of both initial accuracy and temperature
coefficient results in very low errors over temperature
without the use of external components. The AD581L
has a maximum deviation from 10.000 volts of ±7.25 mV
from 0°C to +70°C, while the AD581U guarantees
± 15 mV maximum total error without external trims
from –55°C to +125°C.
2. Since the laser trimming is done on the wafer prior to sepa-
ration into individual chips, the AD581 will be extremely
valuable to hybrid designers for its ease of use, lack of
required external trims, and inherent high performance.
3. The AD581 can also be operated in a two-terminal
“Zener” mode to provide a precision negative 10 volt
reference with just one external resistor to the unregu-
lated supply. The performance in this mode is nearly equal
to that of the standard three-terminal configuration.
4. Advanced circuit design using the bandgap concept
allows the AD581 to give full performance with an un-
regulated input voltage down to 13 volts. With an exter-
nal resistor, the device will operate with a supply as low
as 11.4 volts.
5. The AD581 is available in versions compliant with MIL-
STD-883. Refer to the Analog Devices Military Prod-
ucts Databook or current AD581/883B data sheet for
detailed specifications.
*Covered by Patent Nos. 3,887,863; RE 30,586.
REV. B
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2000


Analog Devices Semiconductor Electronic Components Datasheet

AD581 Datasheet

High Precision 10 V IC Reference

No Preview Available !

AD581 pdf
AD581–SPECIFICATIONS (@ VIN = +15 V and +25؇C)
Model
OUTPUT VOLTAGE TOLERANCE
(Error from Nominal 10,000 V Output)
OUTPUT VOLTAGE CHANGE
Maximum Deviation from +25°C
Value, TMIN to TMAX
(Temperature Coefficient)
LINE REGULATION
15 V VIN 30 V
13 V VIN 15 V
LOAD REGULATION
0 IOUT 5 mA
QUIESCENT CURRENT
TURN-ON SETTLING TIME TO 0.1%1
NOISE (0.1 Hz to 10 Hz)
LONG-TERM STABILITY
SHORT-CIRCUIT CURRENT
OUTPUT CURRENT
Source @ +25°C
Source TMIN to TMAX
Sink TMIN to TMAX
Sink –55°C to +85°C
TEMPERATURE RANGE
Specified
Operating
PACKAGE OPTION2
TO-5 (H-03B)
AD581J
Min Typ Max
AD581K
Min Typ Max
AD581L
Min Typ Max
؎30 ؎10 ؎5
؎13.5
30
؎6.75
15
؎2.25
5
3.0
(0.002)
1.0
(0.005)
3.0
(0.002)
1.0
(0.005)
3.0
(0.002)
1.0
(0.005)
200 500
0.75 1.0
200
40
25
30
200 500
0.75 1.0
200
40
25
30
200 500
0.75 1.0
200
40
25
30
10 10 10
555
555
–––
0 +70 0 +70 0 +70
–65 +150 –65 +150 –65 +150
AD581JH
AD581KH
AD581LH
Model
AD581S
Min Typ Max
AD581T
Min Typ Max
AD581U
Min Typ Max
OUTPUT VOLTAGE TOLERANCE
(Error from Nominal 10,000 V Output)
؎30 ؎10 ؎5
OUTPUT VOLTAGE CHANGE
Maximum Deviation from +25°C
Value, TMIN to TMAX
(Temperature Coefficient)
LINE REGULATION
15 V VIN 30 V
13 V VIN 15 V
LOAD REGULATION
0 IOUT 5 mA
QUIESCENT CURRENT
TURN-ON SETTLING TIME TO 0.1%1
NOISE (0.1 Hz to 10 Hz)
LONG-TERM STABILITY
SHORT-CIRCUIT CURRENT
OUTPUT CURRENT
Source @ +25°C
Source TMIN to TMAX
Sink TMIN to TMAX
Sink –55°C to +85°C
TEMPERATURE RANGE
Specified
Operating
PACKAGE OPTION2
TO-5 (H-03B)
؎30 ؎15 ؎10
30 15 10
3.0
(0.002)
1.0
(0.005)
3.0
(0.002)
1.0
(0.005)
3.0
(0.002)
1.0
(0.005)
200 500
0.75 1.0
200
40
25
30
200 500
0.75 1.0
200
40
25
30
200 500
0.75 1.0
200
40
25
30
10 10 10
555
200 200 200
555
–55 +125 –55 +125 –55 +125
–65 +150 –65 +150 –65 +150
AD581SH
AD581TH
AD581UH
NOTES
1See Figure 7.
2H = Hermetic Metal Can.
Specifications subject to change without notice.
Specifications shown in boldface are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels.
All min and max specifications are guaranteed, although only those shown in boldface are tested on all production units.
Units
mV
mV
ppm/°C
mV
%/V
mV
%/V
µV/mA
mA
µs
µV (p-p)
ppm/1000 hrs.
mA
mA
mA
µA
mA
°C
°C
Units
mV
mV
ppm/°C
mV
%/V
mV
%/V
µV/mA
mA
µs
µV (p-p)
ppm/1000 hrs.
mA
mA
mA
µA
mA
°C
°C
–2– REV. B


Part Number AD581
Description High Precision 10 V IC Reference
Maker Analog Devices
Total Page 6 Pages
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AD581 pdf
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