Pin Programmable,

Precision Voltage Reference

Data Sheet

AD584

Rev. C

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FEATURES

Four programmable output voltages

10.000 V, 7.500 V, 5.000 V, and 2.500 V

Laser-trimmed to high accuracies

No external components required

Trimmed temperature coefficient

15 ppm/°C maximum, 0°C to 70°C (AD584K)

15 ppm/°C maximum, −55°C to +125°C (AD584T)

Zero output strobe terminal provided

2-terminal negative reference: capability (5 V and above)

Output sources or sinks current

Low quiescent current: 1.0 mA maximum

10 mA current output capability

MIL-STD-883 compliant versions available

PIN CONFIGURATIONS

Figure 1. 8-Pin TO-99

Figure 2. 8-Lead PDIP

GENERAL DESCRIPTION

The AD584 is an 8-terminal precision voltage reference offering

pin programmable selection of four popular output voltages:

10.000 V, 7.500 V, 5.000 V and 2.500 V. Other output voltages,

above, below, or between the four standard outputs, are available by

the addition of external resistors. The input voltage can vary

between 4.5 V and 30 V.

Laser wafer trimming (LWT) is used to adjust the pin

programmable output levels and temperature coefficients,

resulting in the most flexible high precision voltage reference

available in monolithic form.

In addition to the programmable output voltages, the AD584

offers a unique strobe terminal that permits the device to be

turned on or off. When the AD584 is used as a power supply

reference, the supply can be switched off with a single, low power

signal. In the off state, the current drained by the AD584 is reduced

to approximately 100 µA. In the on state, the total supply current is

typically 750 µA, including the output buffer amplifier.

The AD584 is recommended for use as a reference for 8-, 10-,

or 12-bit digital-to-analog converters (DACs) that require an

external precision reference. In addition, the device is ideal for

analog-to-digital converters (ADCs) of up to 14-bit accuracy,

either successive approximation or integrating designs, and in

general, it can offer better performance than that provided by

standard self-contained references.

The AD584J and AD584K are specified for operation from 0°C

to +70°C, and the AD584S and AD584T are specified for the

−55°C to +125°C range. All grades are packaged in a hermetically

sealed, eight-terminal TO-99 metal can, and the AD584J and

AD584K are also available in an 8-lead PDIP.

PRODUCT HIGHLIGHTS

1. The flexibility of the AD584 eliminates the need to design-

in and inventory several different voltage references.

Furthermore, one AD584 can serve as several references

simultaneously when buffered properly.

2. Laser trimming of both initial accuracy and temperature

coefficient results in very low errors overtemperature

without the use of external components.

3. The AD584 can be operated in a 2-terminal Zener mode at

a 5 V output and above. By connecting the input and the

output, the AD584 can be used in this Zener configuration

as a negative reference.

4. The output of the AD584 is configured to sink or source

currents. This means that small reverse currents can be

tolerated in circuits using the AD584 without damage to

the reference and without disturbing the output voltage

(10 V, 7.5 V, and 5 V outputs).

5. The AD584 is available in versions compliant with MIL-STD-

883. Refer to the Analog Devices current AD584/883B data

sheet for detailed specifications. This can be found under the

Additional Data Sheets section of the AD584 product page.

1

2

6

7

3

5

8

V+

TAB

4

AD584

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COMMON

STROBE

CAP

2.5V

5.0V

10.0V

10.0V

1

5.0V

2

2.5V

3

COMMON

4

V+

8

CAP

7

6

STROBE

5

AD584

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