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AD5545BRUZ Datasheet(PDF) 1 Page - Analog Devices

No. de pieza AD5545BRUZ
Descripción Electrónicos  Dual, Current-Output, Serial-Input, 16-/14-Bit DACs
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD5545BRUZ Datasheet(HTML) 1 Page - Analog Devices

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Dual, Current-Output,
Serial-Input, 16-/14-Bit DACs
Data Sheet
AD5545/AD5555
Rev. G
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2003–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
FEATURES
16-bit resolution AD5545
14-bit resolution AD5555
±1 LSB DNL monotonic
±1 LSB INL
2 mA full-scale current ±20%, with VREF = 10 V
0.5 µs settling time
2Q multiplying reference-input 6.9 MHz BW
Zero or midscale power-up preset
Zero or midscale dynamic reset
3-wire interface
Compact 16-lead TSSOP package
APPLICATIONS
Automatic test equipment
Instrumentation
Digitally controlled calibration
Industrial control PLCs
Programmable attenuator
PRODUCT OVERVIEW
The AD5545/AD5555 are 16-bit/14-bit, current-output, digital-
to-analog converters designed to operate from a 4.5 V to 5.5 V
supply range.
An external reference is needed to establish the full-scale
output-current. An internal feedback resistor (RFB) enhances
the resistance and temperature tracking when combined
with an external op amp to complete the I-to-V conversion.
A serial data interface offers high speed, 3-wire microcontroller
compatible inputs using serial data in (SDI), clock (CLK), and
chip select (CS). Additional LDAC function allows
simultaneous update operation. The internal reset logic allows
power-on preset and dynamic reset at either zero or midscale,
depending on the state of the MSB pin.
The AD5545/AD5555 are packaged in the compact TSSOP-16
package and can be operated from −40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
AD5545/
AD5555
VDD
RFBA
VREFB
VREFA
IOUTA
AGNDA
SDI
CS
CLK
DGND
MSB
RS
LDAC
DAC A
DAC A
B
D0..DX
EN
R
R
R
R
16 OR 14
ADDR
DECODE
INPUT
REGISTER
POWER-
ON
RESET
INPUT
REGISTER
DAC A
REGISTER
DAC B
REGISTER
RFBB
IOUTB
AGNDB
DAC B
02918- 0- 001
Figure 1.


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