Datasheet > AD9745_15

AD9745_15

更新时间： 2024-11-14 01:03:47

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	452K
描述
Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters

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AD9745_15 数据手册

Dual 8-/10-/12-/14-/16-Bit

250 MSPS Digital-to-Analog Converters

Data Sheet

AD9741/AD9743/AD9745/AD9746/AD9747

FEATURES

GENERAL DESCRIPTION

High dynamic range, dual DACs

Low noise and intermodulation distortion

The AD9741/AD9743/AD9745/AD9746/AD9747 are pin-

compatible, high dynamic range, dual digital-to-analog

Single carrier WCDMA ACLR = 80 dBc at 61.44 MHz IF

Innovative switching output stage permits useable outputs

beyond Nyquist frequency

LVCMOS inputs with dual-port or optional interleaved

single-port operation

Differential analog current outputs are programmable from

8.6 mA to 31.7 mA full scale

Auxiliary 10-bit current DACs with source/sink capability for

external offset nulling

converters (DACs) with 8-/10-/12-/ 14-/16-bit resolutions

and sample rates of up to 250 MSPS. The devices include

specific features for direct conversion transmit applications,

including gain and offset compensation, and they interface

seamlessly with analog quadrature modulators, such as the

ADL5370.

A proprietary, dynamic output architecture permits synthesis

of analog outputs even above Nyquist by shifting energy away

from the fundamental and into the image frequency.

Internal 1.2 V precision reference voltage source

Operates from 1.8 V and 3.3 V supplies

315 mW power dissipation

Full programmability is provided through a serial peripheral

interface (SPI) port. In addition, some pin-programmable

features are offered for those applications without a controller.

Small footprint, Pb-free, 72-pin LFCSP

PRODUCT HIGHLIGHTS

APPLICATIONS

1. Low noise and intermodulation distortion (IMD) enables

high quality synthesis of wideband signals.

Wireless infrastructure:

WCDMA, CDMA2000, TD-SCDMA, WiMAX

Wideband communications:

LMDS/MMDS, point-to-point

Instrumentation:

2. Proprietary switching output for enhanced dynamic

performance.

3. Programmable current outputs and dual auxiliary DACs

provide flexibility and system enhancements.

RF signal generators, arbitrary waveform generators

FUNCTIONAL BLOCK DIAGRAM

CLKP

CLKN

IOUT1P

16-BIT

DAC1

IOUT1N

INTERFACE LOGIC

IOUT2P

16-BIT

PID<15:0>

DAC2

IOUT2N

GAIN

DAC

CMOS

INTERFACE

GAIN

DAC

AUX1P

OFFSET

INTERNAL

REFERENCE

AND

P2D<15:0>

DAC

AUX1N

SERIAL

PERIPHERAL

INTERFACE

AUX2P

OFFSET

DAC

BIAS

AUX2N

Figure 1.

Rev. A

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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与AD9745_15相关器件

型号	品牌	获取价格	描述	数据表
AD9745BCPZ	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
AD9745BCPZRL	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
AD9745-EBZ	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
AD9746	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
AD9746_15	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
AD9746BCPZ	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
AD9746BCPZRL	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
AD9746-EBZ	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
AD9747	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
AD9747_15	ADI	获取价格	Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters

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