參數(shù)資料
型號： AD5428YRUZ
廠商： Analog Devices Inc
文件頁數(shù)： 1/33頁
文件大小： 0K
描述： IC DAC 8BIT DUAL MULT 20TSSOP
產(chǎn)品培訓模塊： Data Converter Fundamentals
DAC Architectures
標準包裝： 75
設(shè)置時間： 30ns
位數(shù)： 8
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 2
電壓電源： 單電源
功率耗散（最大）： 3.3µW
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 20-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 20-TSSOP
包裝： 管件
輸出數(shù)目和類型： 2 電流，單極；2 電流，雙極
采樣率（每秒）： 21.3M
產(chǎn)品目錄頁面： 782 (CN2011-ZH PDF)
Dual 8-/10-/12-Bit, High Bandwidth,
Multiplying DACs with Parallel Interface
Data Sheet
Rev. C
InformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
licenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2004–2011 Analog Devices, Inc. All rights reserved.
FEATURES
10 MHz multiplying bandwidth
INL of ±0.25 LSB @ 8 bits
20-lead and 24-lead TSSOP packages
2.5 V to 5.5 V supply operation
±10 V reference input
21.3 MSPS update rate
Extended temperature range: 40°C to +125°C
4-quadrant multiplication
Power-on reset
0.5 μA typical current consumption
Guaranteed monotonic
Readback function
AD7528 upgrade (AD5428)
AD7547 upgrade (AD5447)
APPLICATIONS
Portable battery-powered applications
Waveform generators
Analog processing
Instrumentation applications
Programmable amplifiers and attenuators
Digitally controlled calibration
Programmable filters and oscillators
Composite video
Ultrasound
Gain, offset, and voltage trimming
GENERAL DESCRIPTION
The AD5428/AD5440/AD54471 are CMOS, 8-, 10-, and 12-bit,
dual-channel, current output digital-to-analog converters (DACs),
respectively. These devices operate from a 2.5 V to 5.5 V power
supply, making them suited to battery-powered and other
applications.
As a result of being manufactured on a CMOS submicron process,
they offer excellent 4-quadrant multiplication characteristics,
with large signal multiplying bandwidths of up to 10 MHz.
The DACs use data readback, allowing the user to read the
contents of the DAC register via the DB pins. On power-up, the
internal register and latches are filled with 0s, and the DAC
outputs are at zero scale.
The applied external reference input voltage (VREF) determines
the full-scale output current. An integrated feedback resistor (RFB)
provides temperature tracking and full-scale voltage output when
combined with an external I-to-V precision amplifier.
The AD5428 is available in a small 20-lead TSSOP package, and
the AD5440/AD5447 DACs are available in small 24-lead TSSOP
packages.
1 U.S. Patent Number 5,689,257.
FUNCTIONAL BLOCK DIAGRAM
04462-001
CONTROL
LOGIC
INPUT
BUFFER
DATA
INPUTS
IOUTA
DB0
DAC A/B
CS
R/W
DGND
DB7
DB9
DB11
IOUTB
AGND
AD5428/AD5440/AD5447
LATCH
8-/10-/12-BIT
R-2R DAC A
8-/10-/12-BIT
R-2R DAC B
POWER-ON
RESET
VDD
VREFA
VREFB
RFBA
RFBB
R
Figure 1. AD5428/AD5440/AD5447
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