AD8582

更新时间： 2024-11-03 22:50:03

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
8页	311K
描述
+5 Volt, Parallel Input Complete Dual 12-Bit DAC

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AD8582 数据手册

+5 Volt, Parallel Input

Complete Dual 12-Bit DAC

AD8582

FEATURES

FUNCTIO NAL BLO CK D IAGRAM

Com plete Dual 12-Bit DAC

No External Com ponents

Single +5 Volt Operation

1 m V/ Bit w ith 4.095 V Full Scale

True Voltage Output, ±5 m A Drive

Very Low Pow er: 5 m W

AD8582

12-BIT

DAC A

LDA

OUTA

INPUT A

A/B

APPLICATIONS

DATA

REFERENCE

REF

Digitally Controlled Calibration

Portable Equipm ent

Servo Controls

INPUT B

Process Control Equipm ent

PC Peripherals

DAC B

12-BIT

DAC B

LDB

OUTB

AGND

MSB

DGND

RST

GENERAL D ESCRIP TIO N

T he high speed parallel data interface connects to the fastest

processors without wait states. T he double-buffered input struc-

ture allows the user to load the input registers one at a time,

then a single load strobe tied to both LDA + LDB inputs will

update both DAC outputs simultaneously. LDA and LDB can

also be activated independently to immediately update their re-

spective DAC registers. An address input decodes DAC A or

DAC B when the chip select CS input is strobed. An asynchro-

nous reset input sets the output to zero scale. T he MSB bit can

be used to establish a preset to midscale when the reset input is

strobed.

T he AD8582 is a complete, parallel input, dual 12-bit, voltage

output DAC designed to operate from a single +5 volt supply.

Built using a CBCMOS process, this monolithic DAC offers the

user low cost, and ease-of-use in +5 volt only systems.

Included on the chip, in addition to the DACs, are a rail-to-rail

amplifier, latch and reference. T he reference (V_REF) is trimmed

to 2.5 volts output, and the on-chip amplifier gains up the DAC

output to 4.095 volts full scale. T he user needs only supply a +5

volt supply.

T he AD8582 is coded natural binary. T he op amp output

swings from 0 volt to +4.095 volts for a one-millivolt-per-bit

resolution, and is capable of driving ±5 mA. Operation down to

4.3 V is possible with output load currents less than 1 mA.

T he AD8582 is available in the 24-pin plastic DIP and the sur-

face mount SOIC-24. Each part is fully specified for operation

over –40°C to +85°C, and the full +5 V ± 5% power supply

range.

5.0

2.0

∆∆VFS

DATA = FFF

≤ 1 LSB

= +5V

1.5

1.0

= +25°C

4.8

4.6

4.4

4.2

4.0

= –55°C, +25°C, +85°C

0.5

PROPER OPERATION

WHEN V SUPPLY

VOLTAGE ABOVE

CURVE

0.0

–0.5

–1.0

= +25°C & +85°C

= –55°C

–1.5

–2.0

0.01

0.1

1.0

100

1024

2048

3072

4096

OUTPUT LOAD CURRENT – mA

DIGITAL INPUT CODE – Decimal

Figure 1. Minim um Supply Voltage vs. Load

Figure 2. Linearity Error vs. Digital Code and Tem perature

REV. 0

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.

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

Tel: 617/ 329-4700

Fax: 617/ 326-8703

12 3 4 5 6 7 8

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与AD8582相关器件

型号	品牌	获取价格	描述	数据表
AD8582AN	ADI	获取价格	+5 Volt, Parallel Input Complete Dual 12-Bit DAC
AD8582AN	ROCHESTER	获取价格	DUAL, PARALLEL, WORD INPUT LOADING, 16 us SETTLING TIME, 12-BIT DAC, PDIP24, PLASTIC, DIP-
AD8582ANZ	ROCHESTER	获取价格	DUAL, PARALLEL, WORD INPUT LOADING, 16 us SETTLING TIME, 12-BIT DAC, PDIP24, PLASTIC, DIP-
AD8582ANZ	ADI	获取价格	5 Volt, Parallel Input Complete Dual 12-Bit DAC
AD8582AR	ADI	获取价格	+5 Volt, Parallel Input Complete Dual 12-Bit DAC
AD8582AR	ROCHESTER	获取价格	DUAL, PARALLEL, WORD INPUT LOADING, 16 us SETTLING TIME, 12-BIT DAC, PDSO24, SOIC-24
AD8582AR-REEL	ADI	获取价格	+5 Volt, Parallel Input Complete Dual 12-Bit DAC
AD8582AR-REEL	ROCHESTER	获取价格	DUAL, PARALLEL, WORD INPUT LOADING, 16 us SETTLING TIME, 12-BIT DAC, PDSO24, SOIC-24
AD8582ARZ	ROCHESTER	获取价格	DUAL, PARALLEL, WORD INPUT LOADING, 16 us SETTLING TIME, 12-BIT DAC, PDSO24, SOIC-24
AD8582ARZ	ADI	获取价格	5 Volt, Parallel Input Complete Dual 12-Bit DAC

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