Datasheet > AD9744ACPZ

AD9744ACPZ

更新时间： 2024-11-13 21:12:31

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
33页	1156K
描述
14-Bit, 210 MSPS TxDAC® D/A Converter

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替代型号

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AD9744ACPZ 数据手册

14-Bit, 210 MSPS TxDAC^®

D/A Converter

Data Sheet

AD9744

FEATURES

APPLICATIONS

High performance member of pin-compatible

TxDAC product family

Wideband communication transmit channel

Direct IFs

Excellent spurious-free dynamic range performance

SFDR to Nyquist

83 dBc at 5 MHz output

Base stations

Wireless local loops

Digital radio links

80 dBc at 10 MHz output

73 dBc at 20 MHz output

Direct digital synthesis (DDS)

Instrumentation

SNR at 5 MHz output, 125 MSPS: 77 dB

Twos complement or straight binary data format

Differential current outputs: 2 mA to 20 mA

Power dissipation: 135 mW at 3.3 V

Power-down mode: 15 mW at 3.3 V

On-chip 1.2 V reference

CMOS-compatible digital interface

28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages

Edge-triggered latches

FUNCTIONAL BLOCK DIAGRAM

3.3V

REFLO

1.2V REF

REFIO

AVDD ACOM

150pF

0.1µF

AD9744

CURRENT

SOURCE

ARRAY

FS ADJ

SET

3.3V

DVDD

DCOM

IOUTA

IOUTB

SEGMENTED

SWITCHES

LSB

SWITCHES

CLOCK

MODE

CLOCK

LATCHES

DIGITAL DATA INPUTS (DB13–DB0)

SLEEP

Figure 1.

GENERAL DESCRIPTION

The AD9744¹is a 14-bit resolution, wideband, third generation

member of the TxDAC series of high performance, low power

CMOS digital-to-analog converters (DACs). The TxDAC family,

consisting of pin-compatible 8-, 10-, 12-, and 14-bit DACs, is

specifically optimized for the transmit signal path of communi-

cation systems. All of the devices share the same interface options,

small outline package, and pinout, providing an upward or

downward component selection path based on performance,

resolution, and cost. The AD9744 offers exceptional ac and dc

performance while supporting update rates up to 210 MSPS.

Edge-triggered input latches and a 1.2 V temperature compensated

band gap reference have been integrated to provide a complete

monolithic DAC solution. The digital inputs support 3 V

CMOS logic families.

PRODUCT HIGHLIGHTS

1. The AD9744 is the 14-bit member of the pin compatible TxDAC

family, which offers excellent INL and DNL performance.

2. Data input supports twos complement or straight binary data

coding.

3. High speed, single-ended CMOS clock input supports

The AD9744’s low power dissipation makes it well suited for

portable and low power applications. Its power dissipation can

be further reduced to a mere 60 mW with a slight degradation

in performance by lowering the full-scale current output. Also,

a power-down mode reduces the standby power dissipation to

approximately 15 mW. A segmented current source architecture

is combined with a proprietary switching technique to reduce

spurious components and enhance dynamic performance.

210 MSPS conversion rate.

4. Low power: Complete CMOS DAC function operates on

135 mW from a 2.7 V to 3.6 V single supply. The DAC full-

scale current can be reduced for lower power operation, and a

sleep mode is provided for low power idle periods.

5. On-chip voltage reference: The AD9744 includes a 1.2 V

temperature compensated band gap voltage reference.

6. Industry-standard 28-lead SOIC, 28-lead TSSOP, and 32-lead

LFCSP packages.

¹Protected by U.S. Patent Numbers 5568145, 5689257, and 5703519.

Rev. C

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 registered trademarks are the property of their respective owners.

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

Technical Support

www.analog.com

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AD9744ACPZ 替代型号

型号	品牌	替代类型	描述	数据表
AD9744ACPRL7	ADI	完全替代	14-Bit, 165 MSPS TxDAC D/A Converter
AD9744ACP	ADI	完全替代	14-Bit, 165 MSPS TxDAC D/A Converter

与AD9744ACPZ相关器件

型号	品牌	获取价格	描述	数据表
AD9744ACPZ1	ADI	获取价格	14-Bit, 210 MSPS TxDAC㈢ D/A Converter
AD9744ACPZRL7	ROCHESTER	获取价格	PARALLEL, WORD INPUT LOADING, 0.011 us SETTLING TIME, 14-BIT DAC, QCC32, MO-220-VHHD-2, LF
AD9744ACPZRL71	ADI	获取价格	14-Bit, 210 MSPS TxDAC㈢ D/A Converter
AD9744AR	ADI	获取价格	14-Bit, 165 MSPS TxDAC D/A Converter
AD9744AR	ROCHESTER	获取价格	PARALLEL, WORD INPUT LOADING, 0.011 us SETTLING TIME, 14-BIT DAC, PDSO28, 0.300 INCH, MS-0
AD9744-AR	ADI	获取价格	IC PARALLEL, WORD INPUT LOADING, 14-BIT DAC, PDSO28, SOIC-28, Digital to Analog Converter
AD9744-AR	ROCHESTER	获取价格	PARALLEL, WORD INPUT LOADING, 14-BIT DAC, PDSO28, SOIC-28
AD9744ARRL	ADI	获取价格	14-Bit, 165 MSPS TxDAC D/A Converter
AD9744ARU	ADI	获取价格	14-Bit, 165 MSPS TxDAC D/A Converter
AD9744ARU	ROCHESTER	获取价格	PARALLEL, WORD INPUT LOADING, 0.011 us SETTLING TIME, 14-BIT DAC, PDSO28, MO-153AE, TSSOP-

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