参数资料
型号: AD5545BRU
厂商: Analog Devices Inc
文件页数: 1/24页
文件大小: 0K
描述: IC DAC 16BIT DUAL SRL IN 16TSSOP
产品培训模块: Data Converter Fundamentals
DAC Architectures
产品变化通告: AD5545BRU Obsolescence 16/May/2012
标准包装: 1
设置时间: 500ns
位数: 16
数据接口: 串行
转换器数目: 2
电压电源: 单电源
功率耗散(最大): 55µW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 管件
输出数目和类型: 2 电流,单极;2 电流,双极
采样率(每秒): 2M
Dual, Current-Output,
Serial-Input, 16-/14-Bit DACs
Data Sheet
Rev. G
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.
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 s 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
B
D0..DX
EN
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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