5962-8688203XA Analog Devices, 5962-8688203XA Datasheet

5962-8688203XA

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5962-8688203XA

Description

Manufacturer

Analog Devices

Datasheet

1.5962-8688203XA.pdf (6 pages)

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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.

*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.

FEATURES

Laser Trimmed to High Accuracy:

Trimmed Temperature Coefficient:

Excellent Long-Term Stability:

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

10.000 Volts

5 ppm/ C max, 0 C to +70 C (L)

10 ppm/ C max, –55 C to +125 C (U)

25 ppm/1000 hrs. (Noncumulative)

5 mV (L and U)

PRODUCT HIGHLIGHTS

1. Laser trimming of both initial accuracy and temperature

2. Since the laser trimming is done on the wafer prior to sepa-

3. The AD581 can also be operated in a two-terminal

4. Advanced circuit design using the bandgap concept

5. The AD581 is available in versions compliant with MIL-

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

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.

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.

“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.

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.

STD-883. Refer to the Analog Devices Military Prod-

ucts Databook or current AD581/883B data sheet for

detailed specifications.

FUNCTIONAL BLOCK DIAGRAM

World Wide Web Site: http://www.analog.com

10 V IC Reference

High Precision

AD581*

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5962-8688203XA Summary of contents

Page 1

... 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 ...

Page 2

AD581–SPECIFICATIONS Model OUTPUT VOLTAGE TOLERANCE (Error from Nominal 10,000 V Output) OUTPUT VOLTAGE CHANGE Maximum Deviation from +25°C Value MIN MAX (Temperature Coefficient) LINE REGULATION 15 V ≤ V ≤ ≤ V ...

Page 3

ABSOLUTE MAXIMUM RATINGS Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

AD581 the initial tolerance is ± 10 mV, the temperature error band is ± 15 mV, thus the unit is guaranteed to be 10.000 volts ± from –55°C to +125°C). OUTPUT CURRENT CHARACTERISTICS The AD581 has the capability ...

Page 5

CONNECTION FOR REDUCED PRIMARY SUPPLY While line regulation is specified down to 13 volts, the typical AD581 will work as specified down to 12 volts or below. The current sink capability allows even lower supply voltage capabil- ity such as ...

Page 6

AD581 THE PRECISION 12-BIT D/A CONVERTER REFERENCE AD562, like most D/A converters, is designed to operate with a +10 volt reference element. In the AD562, this 10 volt reference voltage is converted into a reference current of approximately 0.5 mA ...

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