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| 型號(hào)： | AD9754 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 14-Bit D/A Converter(100MSPS,14位D/A轉(zhuǎn)換器) |
| 中文描述： | 14位D / A轉(zhuǎn)換（100MSPS時(shí)，14位的D / A轉(zhuǎn)換器） |
| 文件頁(yè)數(shù)： | 1/22頁(yè) |
| 文件大?。?/td> | 292K |
| 代理商： | AD9754 |
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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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Preliminary Technical Data
AD9754
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
PRELIMINARY
to +5.5 V and low power dissipation are well suited for portable
and low power applications. Its power dissipation can be
further reduced to a mere 65 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 25 mW.
The AD9754 is manufactured on an advanced CMOS process.
A segmented current source architecture 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 compensated bandgap reference have
been integrated to provide a complete monolithic DAC solu-
tion. The digital inputs support +2.7 V and +5 V CMOS
logic families.
The AD9754 is a current-output DAC with a nominal full-scale
output current of 20 mA and > 100 k
output impedance.
TECHNICAL
14-Bit, 100 MSPS+
TxDAC
D/A Converter
FUNCTIONAL BLOCK DIAGRAM
150pF
+1.20V REF
AVDD
ACOM
REFLO
CURRENT
SOURCE
ARRAY
+5V
SEGMENTED
SWITCHES
LSB
SWITCHES
REFIO
FS ADJ
DVDD
DCOM
CLOCK
R
SET
+5V
0.1
m
F
CLOCK
IOUTA
IOUTB
LATCHES
AD9754
SLEEP
DIGITAL DATA INPUTS (DB13–DB0)
0.1
m
F
ICOMP
FEATURES
Member of Pin-Compatible TxDAC Product Family
125 MSPS Update Rate
14-Bit Resolution
Excellent SFDR and IMD
Differential Current Outputs: 2 mA to 20 mA
Power Dissipation: 220 mW @ 5 V
Power-Down Mode: 25 mW @ 5 V
On-Chip 1.20 V Reference
CMOS-Compatible +2.7 V to +5 V Digital Interface
Package: 28-Lead SOIC, TSSOP Packages
Edge-Triggered Latches
APPLICATIONS
Communication Transmit Channel:
Base Stations
ADSL/HFC Modems
Instrumentation
PRODUCT DESCRIPTION
The AD9754 is a 14-bit resolution second generation member
of the TxDAC series of high performance, low power CMOS
digital-to-analog converters (DACs). The TxDAC
family, which
consists 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 op-
tions, small outline package and pinout, providing an upward or
downward component selection path based on performance,
resolution and cost. The AD9754 offers exceptional ac and dc
performance while supporting update rates up to 125 MSPS.
The AD9754’s flexible single-supply operating range of +4.5 V
TxDAC is a registered trademark of Analog Devices, Inc.
ended or differential applications. Matching between the two
current outputs ensures enhanced dynamic performance in a
differential output configuration. The current outputs may be
tied directly to an output resistor to provide two complemen-
tary, single-ended voltage outputs or fed directly into a trans-
former. The output voltage compliance range is 1.25V.
The on-chip reference and control amplifier are configured for
maximum accuracy and flexibility. The AD9754 can be driven
by the on-chip reference or by a variety of external reference
voltages. The internal control amplifier, which provides a wide
(>10:1) adjustment span, allows the AD9754 full-scale current
to be adjusted over a 2 mA to 20 mA range while maintaining
excellent dynamic performance. Thus, the AD9754 may operate
at reduced power levels or be adjusted over a 20 dB range to
provide additional gain ranging capabilities.
The AD9754 is available in 28-lead SOIC and TSSOP packages.
It is specified for operation over the industrial temperature range.
PRODUCT HIGHLIGHTS
1. The AD9754 is a member of the TxDAC
product family that
provides an upward or downward component selection path
based on resolution (8 to 14 bits), performance and cost.
2. Manufactured on a CMOS process, the AD9754 uses a pro-
prietary switching technique that enhances dynamic perfor-
mance beyond that previously attainable by higher power/cost
bipolar or BiCMOS devices.
3. On-chip, edge-triggered input CMOS latches readily interface
to +2.7 V to +5 V CMOS logic families. The AD9754 can
support update rates up to 125 MSPS.
4. A flexible single-supply operating range of +4.5 V to +5.5 V,
and a wide full-scale current adjustment span of 2 mA to
20 mA, allows the AD9754 to operate at reduced power levels.
5. The current output(s) of the AD9754 can be easily config-
ured for various single-ended or differential circuit topologies.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9754AR | 功能描述:IC DAC 14BIT 125MSPS HP 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:TxDAC® 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 |
| AD9754ARRL | 制造商:Analog Devices 功能描述:DAC 1-CH 14-bit 28-Pin SOIC W T/R 制造商:Rochester Electronics LLC 功能描述:14-BIT, 125 MSPS+ TXDAC D/A CONVERTER - Tape and Reel |
| AD9754ARU | 功能描述:IC DAC 14BIT 125MSPS 28-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:TxDAC® 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 |
| AD9754ARURL7 | 功能描述:IC DAC 14BIT 125MSPS 28-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:TxDAC® 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時(shí)間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
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