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AD5546 - Analog Devices - 16-/14-Bit Multiplying DAC

Номер произв AD5546
Описание 16-/14-Bit Multiplying DAC
Производители Analog Devices
логотип Analog Devices логотип 
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AD5546 Даташит, Описание, Даташиты
Data Sheet
Current Output, Parallel Input, 16-/14-Bit
Multiplying DACs with Four-Quadrant Resistors
AD5546/AD5556
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
R1 RCOM REF ROFS
R1 R2
ROFS RFB
RFB
VDD
WR
LDAC
DB0 TO DB15
AD5546/
AD5556
CONTROL
LOGIC
DAC
16/14
DAC
REGISTER
IOUT
GND
POR
MSB RS
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.
+10V
+
U2A
OP2177
C7
–10V
R1A
RCOMA
VREFA
R1 R2
ROFSA RFBA
ROFS
RFB
+15V
C6
C4
1µF
+5V
C1
1µF
C2
0.1µF
16-/14-BIT
DATA
VDD
U1
AD5546/AD5556
16-/14-BIT
DATA
IOUT
GND
C5
V+ 0.1µF
U2B
OP2177
+ V–
C8
1µF
VOUT
WR LDAC RS MSB
WR
LDAC
RS
MSB
C9
0.1µF
–15V
Figure 2. 16-/14-Bit, Four-Quadrant Multiplying DAC with a Minimum of External Components
Rev. D
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 that may result from its use. Specifications subject to change without notice. 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
www.analog.com
Fax: 781.461.3113 ©2004-2011 Analog Devices, Inc. All rights reserved.
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AD5546 Даташит, Описание, Даташиты
AD5546/AD5556
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics ............................................................. 3
Timing Diagram ........................................................................... 4
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configurations and Function Descriptions ........................... 6
Typical Performance Characteristics ............................................. 8
Circuit Operation ........................................................................... 10
Digital-to-Analog (DAC) Converter Section ......................... 10
REVISION HISTORY
11/11—Rev. C to Rev. D
Changes to General Description Section ...................................... 1
Changes to Ordering Guide .......................................................... 18
1/11—Rev. B to Rev. C
Changes to Figure 2.......................................................................... 1
Changes to Figure 21...................................................................... 13
4/10—Rev. A to Rev. B
Changes to Table 1............................................................................ 4
Moved Timing Diagram Section and Figure 5 to
Specifications Section....................................................................... 4
Moved Table 5 Through Table 7 to Digital Section Section ....... 7
Replaced Figure 15 and Figure 16 .................................................. 9
Deleted Figure 17 and Figure 18..................................................... 9
Added Reference Selection Section, Amplifier Selection Section,
and Table 11 Through Table 13 .................................................... 15
9/09—Rev. 0 to Rev. A
Changes to Features Section............................................................ 1
Changes to Static Performance, Relative Accuracy,
Grade: AD5546C Parameter, Table 1 ............................................. 3
Changes to Ordering Guide .......................................................... 16
1/04—Revision 0: Initial Version
Data Sheet
Digital Section ............................................................................ 11
ESD Protection Circuits ............................................................ 11
Amplifier Selection .................................................................... 11
Reference Selection .................................................................... 11
Applications Information .............................................................. 12
Unipolar Mode ........................................................................... 12
Bipolar Mode .............................................................................. 13
AC Reference Signal Attenuator............................................... 14
System Calibration ..................................................................... 14
Reference Selection .................................................................... 15
Amplifier Selection .................................................................... 15
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 17
Rev. D | Page 2 of 20
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AD5546 Даташит, Описание, Даташиты
Data Sheet
AD5546/AD5556
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
VDD = 2.7 V to 5.5 V, IOUT = virtual GND, GND = 0 V, VREF = –10 V to 10 V, TA = full operating temperature range, unless otherwise noted.
Table 1.
Parameter
STATIC PERFORMANCE1
Resolution
Relative Accuracy
Differential Nonlinearity
Output Leakage Current
Full-Scale Gain Error
Bipolar Mode Gain Error
Bipolar Mode Zero-Scale
Error
Full-Scale Tempco2
REFERENCE INPUT
VREF Range
REF Input Resistance
R1 and R2 Resistance
R1-to-R2 Mismatch
Feedback and Offset
Resistance
Input Capacitance2
ANALOG OUTPUT
Output Current
Output Capacitance2
LOGIC INPUT AND OUTPUT
Logic Input Low Voltage
Logic Input High Voltage
Input Leakage Current
Input Capacitance2
INTERFACE TIMING2, 3
Data to WR Setup Time
Data to WR Hold Time
WR Pulse Width
LDAC Pulse Width
Symbol
Conditions
N
INL
DNL
IOUT
GFSE
GE
GZSE
TCVFS
AD5546, 1 LSB = VREF/216 = 153 µV at
VREF = 10 V
AD5556, 1 LSB = VREF/214 = 610 µV at
VREF = 10 V
Grade: AD5556C
Grade: AD5546B
Grade: AD5546C
Monotonic
Data = zero scale, TA = 25°C
Data = zero scale, TA = TA maximum
Data = full scale
Data = full scale
Data = full scale
VREF
REF
R1 and R2
∆(R1 to R2)
RFB, ROFS
CREF
IOUT Data = full scale
COUT Code dependent
VIL VDD = 5 V
VDD = 3 V
VIH VDD = 5 V
VDD = 3 V
IIL
CIL
tDS
tDH
tWR
tLDAC
VDD = 5 V
VDD = 3 V
VDD = 5 V
VDD = 3 V
VDD = 5 V
VDD = 3 V
VDD = 5 V
VDD = 3 V
Min Typ
16
14
±1
±1
±1
1
–18
45
45
±0.5
8 10
5
2
200
2.4
2.1
20
35
0
0
20
35
20
35
Max Unit
Bits
Bits
±1 LSB
±2 LSB
±1 LSB
±1 LSB
10 nA
20 nA
±4 mV
±4 mV
±2.5 mV
ppm/°C
+18 V
6 kΩ
6 kΩ
±1.5 Ω
12 kΩ
pF
mA
pF
0.8 V
0.4 V
V
V
10 µA
10 pF
ns
ns
ns
ns
ns
ns
ns
ns
Rev. D | Page 3 of 20
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