Datasheet > AD9740ACPRL7

AD9740ACPRL7

更新时间： 2024-11-09 12:33:55

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
32页	1146K
描述
10-Bit, 210 MSPS TxDAC D/A Converter

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AD9740ACPRL7 数据手册

10-Bit, 210 MSPS TxDAC^®D/A Converter

AD9740

FEATURES

APPLICATIONS

High performance member of pin-compatible

TxDAC product family

Wideband communication transmit channel

Direct IF

Excellent spurious-free dynamic range performance

SNR @ 5 MHz output, 125 MSPS: 65 dB

Twos complement or straight binary data format

Differential current outputs: 2 mA to 20 mA

Power dissipation: 135 mW @ 3.3 V

Base stations

Wireless local loops

Digital radio links

Direct digital synthesis (DDS)

Instrumentation

Power-down mode: 15 mW @ 3.3 V

On-chip 1.2 V Reference

FUNCTIONAL BLOCK DIAGRAM

3.3V

CMOS-compatible digital interface

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

packages

Edge-triggered latches

REFLO

1.2V REF

REFIO

AVDD ACOM

150pF

0.1μF

AD9740

CURRENT

SOURCE

ARRAY

FS ADJ

SET

3.3V

DVDD

DCOM

IOUTA

IOUTB

SEGMENTED

SWITCHES

LSB

SWITCHES

CLOCK

MODE

CLOCK

LATCHES

DIGITAL DATA INPUTS (DB9–DB0)

SLEEP

Figure 1.

GENERAL DESCRIPTION

The AD9740¹is a 10-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 communication 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 AD9740 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 AD9740 is the 10-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

210 MSPS conversion rate.

The AD9740’s low power dissipation makes it well suited for

portable and low power applications. Its power dissipation

can be further reduced to 60 mW with a slight degradation in

performance by lowering the full-scale current output. In

addition, 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.

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 AD9740 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. B

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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AD9740ACPRL7 替代型号

型号	品牌	替代类型	描述	数据表
AD9740ACPZ	ADI	完全替代	10-Bit, 210 MSPS TxDAC® D/A Converter
AD9740ACPZRL7	ADI	完全替代	10-Bit, 210 MSPS TxDAC D/A Converter
AD9740ACP	ADI	完全替代	10-Bit, 210 MSPS TxDAC D/A Converter

与AD9740ACPRL7相关器件

型号	品牌	获取价格	描述	数据表
AD9740ACPZ	ADI	获取价格	10-Bit, 210 MSPS TxDAC® D/A Converter
AD9740ACPZ	ROCHESTER	获取价格	PARALLEL, WORD INPUT LOADING, 0.011 us SETTLING TIME, 10-BIT DAC, QCC32, 5 X 5 MM, LEAD FR
AD9740ACPZ1	ADI	获取价格	10-Bit, 210 MSPS TxDAC D/A Converter
AD9740ACPZRL7	ADI	获取价格	10-Bit, 210 MSPS TxDAC D/A Converter
AD9740ACPZRL7	ROCHESTER	获取价格	PARALLEL, WORD INPUT LOADING, 0.011 us SETTLING TIME, 10-BIT DAC, QCC32, 5 X 5 MM, LEAD FR
AD9740AR	ADI	获取价格	10-Bit, 165 MSPS TxDAC D/A Converter
AD9740ARRL	ADI	获取价格	10-Bit, 210 MSPS TxDAC D/A Converter
AD9740ARU	ADI	获取价格	10-Bit, 165 MSPS TxDAC D/A Converter
AD9740ARU	ROCHESTER	获取价格	PARALLEL, WORD INPUT LOADING, 0.011us SETTLING TIME, 10-BIT DAC, PDSO28, MO-153AE, TSSOP-2
AD9740ARURL7	ADI	获取价格	10-Bit, 210 MSPS TxDAC D/A Converter

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