Datasheet > AD5678ARUZ-2

AD5678ARUZ-2

更新时间： 2024-11-27 04:30:43

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	890K
描述
4 】 12-Bit and 4 】 16-Bit Octal DAC with On-Chip Reference in 14-Lead TSSOP

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替代型号

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AD5678ARUZ-2 数据手册

4 × 12-Bit and 4 × 16-Bit Octal DAC with

On-Chip Reference in 14-Lead TSSOP

AD5678

FUNCTIONAL BLOCK DIAGRAM

FEATURES

REFIN REFOUT

Low power octal DAC with

Four 16-bit DACs

AD5678

1.25V/2.5V

REF

BUFFER

Four 12-bit DACs

14-lead/16-lead TSSOP

DAC

STRING

DAC A

INPUT

LDAC

OUT

INPUT

DAC

STRING

DAC B

On-chip 1.25 V/2.5 V, 5 ppm/°C reference

Power down to 400 nA @ 5 V, 200 nA @ 3 V

2.7 V to 5.5 V power supply

Guaranteed monotonic by design

Power-on reset to zero scale

3 power-down functions

Hardware LDAC and LDAC override function

CLR function to programmable code

Rail-to-rail operation

DAC

STRING

DAC C

INPUT

SCLK

SYNC

DIN

INTERFACE

LOGIC

INPUT

DAC

STRING

DAC D

DAC

STRING

DAC E

INPUT

DAC

STRING

DAC F

DAC

STRING

DAC G

INPUT

DAC

STRING

DAC H

POWER-DOWN

POWER-ON

RESET

LOGIC

GND

LDAC CLR

APPLICATIONS

RU-16 PACKAGE ONLY

Figure 1.

Process control

Data acquisition systems

Portable battery-powered instruments

Digital gain and offset adjustment

Programmable voltage current sources

Programmable attenuators

GENERAL DESCRIPTION

The AD5678 is a low power, octal, buffered voltage-output

DAC with four 12-bit DACs and four 16-bit DACs in a single

package. All devices operate from a single 2.7 V to 5.5 V supply

and are guaranteed monotonic by design.

The outputs of all DACs can be updated simultaneously using

the function, with the added functionality of user-

LDAC

selectable DAC channels to simultaneously update. There is

also an asynchronous that clears all DACs to a software-

CLR

selectable code—0 V, midscale, or full scale.

The AD5678 has an on-chip reference with an internal gain of 2.

The AD5678-1 has a 1.25 V 5 ppm/°C reference, giving a full-

scale output of 2.5 V; the AD5678-2 has a 2.5 V 5 ppm/°C

reference, giving a full-scale output of 5 V. The on-board

reference is off at power-up, allowing the use of an external

reference. The internal reference is enabled via a software write.

The AD5678 utilizes a versatile 3-wire serial interface that

operates at clock rates of up to 50 MHz and is compatible with

standard SPI®, QSPI™, MICROWIRE™, and DSP interface

standards. The on-chip precision output amplifier enables rail-

to-rail output swing.

The part incorporates a power-on reset circuit that ensures that

the DAC output powers up to 0 V and remains powered up at

this level until a valid write takes place. The part contains a

power-down feature that reduces the current consumption of

the device to 400 nA at 5 V and provides software-selectable

output loads while in power-down mode for any or all DAC

channels.

PRODUCT HIGHLIGHTS

1. Octal DAC (four 12-bit DACs and four 16-bit DACs).

2. On-chip 1.25 V/2.5 V, 5 ppm/°C reference.

3. Available in 14-lead/16-lead TSSOP.

4. Power-on reset to 0 V.

5. Power-down capability. When powered down, the DAC

typically consumes 200 nA at 3 V and 400 nA at 5 V.

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 that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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AD5678ARUZ-2 替代型号

型号	品牌	替代类型	描述	数据表
AD5678BRUZ-2	ADI	完全替代	4 】 12-Bit and 4 】 16-Bit Octal DAC with On-C
AD5678ARUZ-2REEL7	ADI	类似代替	4 】 12-Bit and 4 】 16-Bit Octal DAC with On-C
DAC8568ICPW	TI	功能相似	12-/14-/16-Bit, Octal-Channel, Ultra-Low Glit

与AD5678ARUZ-2相关器件

型号	品牌	获取价格	描述	数据表
AD5678ARUZ-2REEL7	ADI	获取价格	4 】 12-Bit and 4 】 16-Bit Octal DAC with On-C
AD5678BRUZ-1	ADI	获取价格	4 】 12-Bit and 4 】 16-Bit Octal DAC with On-C
AD5678BRUZ-1REEL7	ADI	获取价格	4 】 12-Bit and 4 】 16-Bit Octal DAC with On-C
AD5678BRUZ-2	ADI	获取价格	4 】 12-Bit and 4 】 16-Bit Octal DAC with On-C
AD5678BRUZ-2REEL7	ADI	获取价格	4 】 12-Bit and 4 】 16-Bit Octal DAC with On-C
AD567JD	ADI	获取价格	Microprocessor-Compatible 12-Bit D/A Converter
AD567JD/+	ETC	获取价格	12-Bit Digital-to-Analog Converter
AD567JN	ADI	获取价格	Microprocessor-Compatible 12-Bit D/A Converter
AD567KD	ADI	获取价格	Microprocessor-Compatible 12-Bit D/A Converter
AD567KD/+	ADI	获取价格	暂无描述

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