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參數(shù)資料
型號: AD9750
廠商: Analog Devices, Inc.
英文描述: 10-Bit D/A Converter(100MSPS,10位D/A轉(zhuǎn)換器)
中文描述: 10位D / A轉(zhuǎn)換器(100MSPS時,10位的D / A轉(zhuǎn)換器)
文件頁數(shù): 1/21頁
文件大?。?/td> 280K
代理商: AD9750
REV. 0
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
AD9750*
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
The AD9750’s flexible single-supply operating range of 4.5 V 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, without a significant 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 AD9750 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 solution.
The digital inputs support +2.7 V to +5 V CMOS logic families.
The AD9750 is a current-output DAC with a nominal full-scale
output current of 20 mA and > 100 k
output impedance.
TECHNICAL
ate at reduced power levels or be adjusted over a 20 dB range to
provide additional gain ranging capabilities.
The AD9750 is available in 28-lead SOIC and TSSOP packages.
It is specified for operation over the industrial temperature range.
PRELIMINARY
TECHNICAL
10-Bit, 100 MSPS+
TxDAC
D/A Converter
FUNCTIONAL BLOCK DIAGRAM
150pF
+1.20V REF
AVDD
ACOM
REFLO
ICOMP
CURRENT
SOURCE
ARRAY
+5V
SEGMENTED
SWITCHES
LSB
SWITCH
REFIO
FS ADJ
DVDD
DCOM
CLOCK
+5V
R
SET
0.1
m
F
IOUTA
IOUTB
0.1
m
F
AD9750
SLEEP
DIGITAL DATA INPUTS (DB9–DB0)
FEATURES
Member of Pin-Compatible TxDAC
Product Family
125 MSPS Update Rate
10-Bit Resolution
Excellent Spurious Free Dynamic Range Performance
SFDR to Nyquist @ 5 MHz Output: 72 dBc
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 +5.5 V Digital Interface
Package: 28-Lead SOIC and TSSOP
Edge-Triggered Latches
APPLICATIONS
Communication Transmit Channel:
Basestations
Set Top Boxes
Digital Radio Link
Direct Digital Synthesis (DDS)
Instrumentation
PRODUCT DESCRIPTION
The AD9750 is a 10-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 speci-
fically optimized for the transmit signal path of communication
systems. All of the devices share the same interface options,
small outline package and pinout, thus providing an upward or
downward component selection path based on performance,
resolution and cost. The AD9750 offers exceptional ac and dc
performance while supporting update rates up to 125 MSPS.
TxDAC is a registered trademark of Analog Devices, Inc.
*Patent pending.
Differential current outputs are provided to support single-
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 AD9750 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 AD9750 full-scale current
to be adjusted over a 2 mA to 20 mA range while maintaining
PRODUCT HIGHLIGHTS
1. The AD9750 is a member of the TxDAC
product family which
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 AD9750 uses a
proprietary switching technique that enhances dynamic
performance beyond that previously attainable by higher
power/cost bipolar or BiCMOS devices.
3. On-chip, edge-triggered input CMOS latches interface readily
to +2.7 V to +5 V CMOS logic families. The AD9750 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
allow the AD9750 to operate at reduced power levels.
5. The current output(s) of the AD9750 can be easily config-
ured for various single-ended or differential circuit topologies.
相關(guān)PDF資料
PDF描述
AD9752* 12-Bit. 125 MSPS High Performance TxDAC D/A Converter
AD9752-EB 12-Bit, 125 MSPS High Performance TxDAC D/A Converter
AD9752AR 12-Bit, 125 MSPS High Performance TxDAC D/A Converter
AD9752ARU 12-Bit, 125 MSPS High Performance TxDAC D/A Converter
AD9754ARU 14-Bit, 125 MSPS High Performance TxDAC D/A Converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9750AR 制造商:Analog Devices 功能描述:DAC 1-CH Segment 10-bit 28-Pin SOIC W 制造商:Analog Devices 功能描述:DAC SGL 10-BIT 28SOIC - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:10 BIT 12500 MSPS+ TXDAC D/A CONVERTER - Bulk 制造商:Analog Devices 功能描述:0BIT DAC POLY FUSE 9750 SOIC28
AD9750ARRL 制造商:Analog Devices 功能描述:DAC 1-CH Segment 10-bit 28-Pin SOIC W T/R 制造商:Rochester Electronics LLC 功能描述:10 BIT 125 MSPS+ TXDAC D/A CONVERTER - Bulk
AD9750ARU 制造商:Analog Devices 功能描述:DAC 1-CH Segment 10-bit 28-Pin TSSOP 制造商:Rochester Electronics LLC 功能描述:10 BIT 125 MSPS+ TXDAC D/A CONVERTER - Bulk
AD9750ARURL7 制造商:Analog Devices 功能描述:DAC 1-CH Segment 10-bit 28-Pin TSSOP T/R 制造商:Rochester Electronics LLC 功能描述:10 BIT 125 MSPS+ TXDAC D/A CONVERTER - Bulk
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