AD5668ARUZ-2

更新时间： 2024-11-24 12:41:39

品牌	Logo	应用领域
亚德诺 - ADI		转换器数模转换器光电二极管
页数	文件大小	规格书
32页	1246K
描述
Octal, 12-/14-/16-Bit SPI Voltage Output denseDAC with 5 ppm/Â°C On-Chip Reference

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AD5668ARUZ-2 数据手册

Octal, 12-/14-/16-Bit SPI Voltage Output

denseDAC with 5 ppm/°C On-Chip Reference

Data Sheet

AD5628/AD5648/AD5668

FEATURES

FUNCTIONAL BLOCK DIAGRAM

REFIN REFOUT

Low power, small footprint, pin-compatible octal DACs

AD5668: 16 bits

AD5628/AD5648/AD5668

1.25V/2.5V

REF

BUFFER

AD5648: 14 bits

AD5628: 12 bits

INPUT

DAC

STRING

DAC A

LDAC

OUT

DAC

STRING

DAC B

INPUT

14-lead/16-lead TSSOP, 16-lead LFCSP, and 16-lead WLCSP

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 or midscale

3 power-down functions

Hardware LDAC and LDAC override function

CLR function to programmable code

Rail-to-rail operation

INPUT

DAC

STRING

DAC C

SCLK

SYNC

DIN

INTERFACE

LOGIC

DAC

STRING

DAC D

INPUT

DAC

STRING

DAC E

DAC

STRING

DAC F

INPUT

DAC

STRING

DAC G

DAC

STRING

DAC H

INPUT

POWER-DOWN

POWER-ON

RESET

LOGIC

GND

LDAC CLR

RU-16 PACKAGE ONLY

APPLICATIONS

Process control

Figure 1.

Data acquisition systems

Portable battery-powered instruments

Digital gain and offset adjustment

Programmable voltage and current sources

Programmable attenuators

GENERAL DESCRIPTION

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

DAC channels. The outputs of all DACs can be updated simul-

The AD5628/AD5648/AD5668 devices are low power, octal,

12-/14-/16-bit, buffered voltage-output DACs. All devices

operate from a single 2.7 V to 5.5 V supply and are guaranteed

monotonic by design. The AD5668 and AD5628 are available in

both a 4 mm × 4 mm LFCSP and a 16-lead TSSOP, while the

AD5648 is available in both a 14-lead and 16-lead TSSOP.

taneously using the

function, with the added functionality

LDAC

of user-selectable DAC channels to simultaneously update. There

is also an asynchronous that updates all DACs to a user-

CLR

programmable code—zero scale, midscale, or full scale.

The AD5628/AD5648/AD5668 utilize 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 AD5628/AD5648/AD5668 have an on-chip reference with

an internal gain of 2. The AD5628-1/AD5648-1/AD5668-1 have

a 1.25 V 5 ppm/°C reference, giving a full-scale output range

of 2.5 V; the AD5628-2/AD5648-2/AD5668-2 and AD5668-3 have

a 2.5 V 5 ppm/°C reference, giving a full-scale output range 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.

PRODUCT HIGHLIGHTS

1. Octal, 12-/14-/16-bit DAC.

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

3. Available in 14-lead/16-lead TSSOP, 16-lead LFCSP, and

16-lead WLCSP.

4. Power-on reset to 0 V or midscale.

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

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

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

DAC output powers up to 0 V (AD5628-1/AD5648-1/AD5668-1,

AD5628-2/AD5648-2/AD5668-2) or midscale (AD5668-3) 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-

Rev. G

Document Feedback

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.

Technical Support

www.analog.com

12 3 4 5 6 7...32

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AD5668ARUZ-2 替代型号

型号	品牌	替代类型	描述	数据表
AD5668ARUZ-2REEL7	ADI	类似代替	Octal, 12-/14-/16-Bit SPI Voltage Output dens
DAC8568ICPW	TI	功能相似	12-/14-/16-Bit, Octal-Channel, Ultra-Low Glit
DAC8568IAPW	TI	功能相似	12-/14-/16-Bit, Octal-Channel, Ultra-Low Glit

与AD5668ARUZ-2相关器件

型号	品牌	获取价格	描述	数据表
AD5668ARUZ-2REEL7	ADI	获取价格	Octal, 12-/14-/16-Bit SPI Voltage Output dens
AD5668ARUZ-3	ADI	获取价格	Octal, 12-/14-/16-Bit SPI Voltage Output dens
AD5668ARUZ-3REEL7	ADI	获取价格	Octal, 12-/14-/16-Bit SPI Voltage Output dens
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AD5668BCPZ-1	ADI	获取价格	SERIAL INPUT LOADING, 2.5us SETTLING TIME, 16-BIT DAC, QCC16
AD5668BCPZ-1500RL7	ADI	获取价格	Octal, 12-/14-/16-Bit SPI Voltage Output dens
AD5668BCPZ-1-RL7	ADI	获取价格	Octal, 12-/14-/16-Bit SPI Voltage Output dens
AD5668BCPZ-2500RL7	ADI	获取价格	Octal, 12-/14-/16-Bit SPI Voltage Output dens
AD5668BCPZ-2-RL7	ADI	获取价格	Octal, 12-/14-/16-Bit SPI Voltage Output dens
AD5668BRUZ-1	ADI	获取价格	Octal, 12-14-16 Bit Dac with 10ppm/∑C Max On-

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