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參數(shù)資料
| 型號： | AD9744-EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 14-Bit, 165 MSPS TxDAC D/A Converter |
| 中文描述： | 14位，165 MSPS的TxDAC系列D / A轉(zhuǎn)換 |
| 文件頁數(shù)： | 1/28頁 |
| 文件大小： | 1142K |
| 代理商： | AD9744-EB |
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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. 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 companies.
Tel: 781/329-4700 Fax: 781/326-8703
www.analog.comAD9744
*
14-Bit, 165 MSPS
TxDAC
D/A Converter
*
Protected by U.S. Patent Numbers 5568145, 5689257, and 5703519.
FEATURES
High Performance Member of Pin Compatible
TxDAC Product Family
Excellent Spurious-Free Dynamic Range Performance
SFDR to Nyquist:
83 dBc @ 5 MHz Output
80 dBc @ 10 MHz Output
73 dBc @ 20 MHz Output
SNR @ 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 @ 3.3 V
Power-Down Mode: 15 mW @ 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
APPLICATIONS
Wideband Communication Transmit Channel:
Direct IF
Base Stations
Wireless Local Loop
Digital Radio Link
Direct Digital Synthesis (DDS)
Instrumentation
FUNCTIONAL BLOCK DIAGRAM
150pF
+1.2V REF
REFIO
FS ADJ
AVDD
ACOM
REFLO
CURRENT
SOURCE
ARRAY
3.3V
SEGMENTED
SWITCHES
LSB
SWITCHES
DVDD
DCOM
CLOCK
3.3V
R
SET
0.1 F
CLOCK
IOUTA
IOUTB
LATCHES
AD9744
SLEEP
DIGITAL DATA INPUTS (DB13–DB0)
MODE
GENERAL DESCRIPTION
The AD9744 is 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 down-
ward component selection path based on performance, resolution,
and cost. The AD9744 offers exceptional ac and dc performance
while supporting update rates up to 165 MSPS.
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 architec-
ture is combined with a proprietary switching technique to
reduce spurious components and enhance dynamic performance.
Edge-triggered input latches and a 1.2 V temperature compen-
sated 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
165 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.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9745 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters |
| AD9745BCPZ | 功能描述:IC DAC 2CH 12BIT 250MSPS 72LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 設(shè)置時(shí)間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| AD9745BCPZRL | 功能描述:IC DAC DUAL 12B 250MSPS 72-LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時(shí)間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應(yīng)商設(shè)備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| AD9745-DPG2-EBZ | 功能描述:IC DAC DUAL 12BIT 72LFCSP RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 數(shù)模轉(zhuǎn)換器 (DAC) 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- DAC 的數(shù)量:4 位數(shù):12 采樣率（每秒）:- 數(shù)據(jù)接口:串行，SPI? 設(shè)置時(shí)間:3µs DAC 型:電流/電壓 工作溫度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
| AD9745-EBZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters |
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