参数资料
型号: AD5546BRU
厂商: Analog Devices Inc
文件页数: 1/20页
文件大小: 0K
描述: IC DAC 16BIT PARALL IN 28-TSSOP
产品培训模块: Data Converter Fundamentals
DAC Architectures
设计资源: Precision, Unipolar, Inverting Conversion Using AD5546/56 DAC (CN0022)
Precision, Bipolar Configuration for the AD5546/56 DAC (CN0024)
Precision, Unipolar, Noninverting Configuration for the AD5546/56 DAC (CN0023)
Precision, AC Reference Signal Attenuator Using AD5546/56 Multiplying DAC (CN0025)
标准包装: 1
设置时间: 500ns
位数: 16
数据接口: 并联
转换器数目: 1
电压电源: 单电源
功率耗散(最大): 55µW
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 管件
输出数目和类型: 1 电流,单极;1 电流,双极
采样率(每秒): 2M
Current Output, Parallel Input, 16-/14-Bit
Multiplying DACs with Four-Quadrant Resistors
Data Sheet
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2004-2011 Analog Devices, Inc. All rights reserved.
FEATURES
16-bit resolution
14-bit resolution
2- or 4-quadrant multiplying DAC
±1 LSB DNL
±1 LSB INL
Operating supply voltage: 2.7 V to 5.5 V
Low noise: 12 nV/√Hz
Low power: IDD = 10 μA
0.5 μs settling time
Built-in RFB facilitates current-to-voltage conversion
Built-in 4-quadrant resistors allow 0 V to –10 V, 0 V to +10 V,
or ±10 V outputs
2 mA full-scale current ±20%, with VREF = 10 V
Automotive operating temperature: –40°C to +125°C
Compact TSSOP-28 package
APPLICATIONS
Automatic test equipment
Instrumentation
Digitally controlled calibration
Digital waveform generation
FUNCTIONAL BLOCK DIAGRAM
DAC
AD5546/
AD5556
WR
LDAC
MSB
RS
DB0 TO DB15
CONTROL
LOGIC
DAC
REGISTER
POR
16/14
VDD
R1
R2
ROFS RFB
R1
RCOM
REF ROFS
RFB
IOUT
GND
03
81
0-
0
01
Figure 1. AD5546/AD5556 Simplified Block Diagram
GENERAL DESCRIPTION
The AD5546/AD5556 are precision 16-/14-bit, multiplying, low
power, current output, parallel input digital-to-analog converters
(DACs). They operate from a single 2.7 V to 5.5 V supply with
±10 V multiplying references for four-quadrant outputs. Built-
in four-quadrant resistors facilitate the resistance matching and
temperature tracking that minimize the number of components
needed for multiquadrant applications. The feedback resistor
(RFB) simplifies the I-V conversion with an external buffer. The
AD5546/AD5556 are packaged in compact TSSOP-28 packages
with operating temperatures from –40°C to +125°C.
The EVAL-AD5546SDZ is available for evaluating DAC perfor-
mance. For more information, see the UG-309 evaluation board
user guide.
03
81
0
-02
4
VDD
ROFS
ROFSA
VOUT
RFB
RFBA
C6
GND
U1
AD5546/AD5556
IOUT
R2
R1
RCOMA
R1A
16-/14-BIT
DATA
16-/14-BIT
DATA
VREFA
U2B
OP2177
+
C4
1F
C5
0.1F
C8
1F
C9
0.1F
+15V
–15V
WR
LDAC
RS
MSB
C2
0.1F
C1
1F
V+
V–
U2A
OP2177
+
C7
+5V
+10V
–10V
Figure 2. 16-/14-Bit, Four-Quadrant Multiplying DAC with a Minimum of External Components
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