AD584L AD [Analog Devices], AD584L Datasheet

AD584L

Manufacturer Part Number

AD584L

Description

Pin Programmable Precision Voltage Reference

Manufacturer

AD [Analog Devices]

Datasheet

1.AD584L.pdf (8 pages)

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GENERAL DESCRIPTION

The AD584 is an eight-terminal precision voltage reference of-

fering pin-programmable selection of four popular output volt-

ages: 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. Input voltage may

vary between 4.5 and 30 volts.

Laser Wafer Trimming (LWT) is used to adjust the pin-pro-

grammable 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 which 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 drain by the AD584

is reduced to about 100 A. In the “on” state the total supply

current is typically 750 A including the output buffer amplifier.

The AD584 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 of

up to 14-bit accuracy, either successive approximation or inte-

grating designs, and in general can offer better performance

than that provided by standard self-contained references.

The AD584J, K and L are specified for operation from 0 C to

+70 C; the AD584S and T are specified for the –55 C to

+125 C range. All grades are packaged in a hermetically sealed

eight-terminal TO-99 metal can; the AD584 J and K are also

available in an 8-pin plastic DIP.

*Protected by U.S. Patent No. 3,887,863; RE 30,586

REV. A

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

Four Programmable Output Voltages:

Laser-Trimmed to High Accuracies

No External Components Required

Trimmed Temperature Coefficient:

Zero Output Strobe Terminal Provided

Two Terminal Negative Reference

Output Sources or Sinks Current

Low Quiescent Current: 1.0 mA max

10 mA Current Output Capability

MIL-STD-883 Compliant Versions Available

10.000 V, 7.500 V, 5.000 V, 2.500 V

5 ppm/ C max, 0 C to +70 C (AD584L)

15 ppm/ C max, –55 C to +125 C (AD584T)

Capability (5 V & Above)

PRODUCT HIGHLIGHTS

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

2. Laser trimming of both initial accuracy and temperature co-

3. The AD584 can be operated in a two-terminal “Zener”

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

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

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

Tel: 617/329-4700

in and inventory several different voltage references. Fur-

thermore one AD584 can serve as several references

simultaneously when buffered properly.

efficient results in very low errors over temperature without

the use of external components. The AD584LH has a maxi-

mum deviation from 10.000 volts of 7.25 mV from 0 C to

+70 C.

mode at 5 volts output and above. By connecting the input

and the output, the AD584 can be used in this “Zener” con-

figuration as a negative reference.

currents. This means that small reverse currents can be tol-

erated 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).

STD-883. Refer to the Analog Devices Military Products

Databook or current AD584/883B data sheet for detailed

specifications.

Precision Voltage Reference

PIN CONFIGURATIONS

8-Pin TO-99

8-Pin DIP

Pin Programmable

AD584*

Fax: 617/326-8703

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AD584L Summary of contents

Page 1

... Laser trimming of both initial accuracy and temperature co- efficient results in very low errors over temperature without the use of external components. The AD584LH has a maxi- mum deviation from 10.000 volts of 7.25 mV from + The AD584 can be operated in a two-terminal “Zener” ...

Page 2

... Units 3.5 2 ppm ppm ppm/ C 1.0 0.75 1 200 p-p 25 ppm/1000 Hrs 30 mA 0.002 0.002 %/V 0.005 0.005 %/ ppm/ +70 0 +70 C +175 –65 +175 C AD584LH Dimensions shown in inches and (mm). REV. A ...

Page 3

Model OUTPUT VOLTAGE TOLERANCE 1 Maximum Error for Nominal Outputs of: 10.000 V 7.500 V 5.000 V 2.500 V OUTPUT VOLTAGE CHANGE Maximum Deviation from + Value MIN MAX 10.000 V, 7.500 V, 5.000 V ...

Page 4

AD584 APPLYING THE AD584 With power applied to Pins 8 and 4 and all other pins open, the AD584 will produce a buffered nominal 10.0 V output between Pins 1 and 4 (see Figure 1). The stabilized output voltage may ...

Page 5

PERFORMANCE OVER TEMPERATURE Each AD584 is tested at three temperatures over the – +125 C range to ensure that each device falls within the Maxi- mum Error Band (see Figure 4) specified for a particular grade (i.e., S ...

Page 6

AD584 USING THE STROBE TERMINAL The AD584 has a strobe input which can be used to zero the output. This unique feature permits a variety of new applica- tions in signal and power conditioning circuits. Figure 9 illustrates the strobe ...

Page 7

... AD562 is primarily governed by the tem- perature tracking of the 19.95 k resistor and the 5k/10k span resistors; this gain T.C. is guaranteed to 3 ppm/ C. Thus, using the AD584L (at 5 ppm the 10 volt reference guarantees a Figure 15. Precision 12-Bit D/A Converter –7– AD584 ...

Page 8

AD584 maximum full scale temperature coefficient of 8 ppm/ C over the commercial range. The 10 volt reference also supplies the normal 1 mA bipolar offset current through the 9.95k bipolar offset resistor. The bipolar offset T.C. thus depends only ...

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