Data Sheet
FEATURES
12 MHz multiplying bandwidth
8-lead MSOP package
2.5 V to 5.5 V supply operation
Pin-compatible 12-bit current output DAC
±10 V reference input
50 MHz serial interface
2.7 MSPS update rate
Extended temperature range: –40°C to +125°C
4-quadrant multiplication
Power-on reset with brownout detect
<0.4 µA typical current consumption
Guaranteed monotonic
Qualified for automotive applications
12-Bit High Bandwidth
Multiplying DAC with Serial Interface
AD5452W
FUNCTIONAL BLOCK DIAGRAM
V
DD
V
REF
R
FB
AD5452W
12-BIT REF
R-2R DAC
R
I
OUT
1
DAC REGISTER
POWER-ON
RESET
INPUT LATCH
SYNC
SCLK
SDIN
CONTROL LOGIC
AND INPUT SHIFT
REGISTER
10657-001
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
GND
Figure 1.
GENERAL DESCRIPTION
The
AD5452W
is a CMOS 12-bit current output digital-to-analog
converter. This device operates from a 2.5 V to 5.5 V power supply,
making it suited to several applications, including battery-
powered applications.
As a result of manufacture on a CMOS submicron process, this
DAC offers excellent four-quadrant multiplication characteris-
tics of up to 12 MHz.
This DAC utilizes a double-buffered, 3-wire serial interface that
is compatible with SPI, QSPI™, MICROWIRE™, and most DSP
interface standards. Upon power-up, the internal shift register
and latches are filled with 0s, and the DAC output is at zero scale.
The applied external reference input voltage (V
REF
) determines
the full-scale output current. This part can handle ±10 V inputs
on the reference, despite operating from a single-supply power
supply of 2.5 V to 5.5 V. An integrated feedback resistor (R
FB
)
provides temperature tracking and full-scale voltage output
when combined with an external current-to-voltage precision
amplifier.
The
AD5452W
DAC is available in an 8-lead MSOP package.
Rev. 0
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.
Trademarks and registered trademarks are the property of their respective owners.
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
©2012 Analog Devices, Inc. All rights reserved.
AD5452W
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics ................................................................ 5
Absolute Maximum Ratings ............................................................ 6
ESD Caution .................................................................................. 6
Pin Configuration and Function Descriptions ............................. 7
Typical Performance Characteristics ............................................. 8
Terminology .................................................................................... 13
Theory of Operation ...................................................................... 14
Data Sheet
DAC Section................................................................................ 14
Circuit Operation ....................................................................... 14
Single-Supply Applications ....................................................... 16
Adding Gain ................................................................................ 16
Divider or Programmable Gain Element ................................ 16
Reference Selection .................................................................... 17
Amplifier Selection .................................................................... 17
Serial Interface ............................................................................ 19
Microprocessor Interfacing ....................................................... 19
PCB Layout and Power Supply Decoupling ........................... 21
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
Automotive Products ................................................................. 23
REVISION HISTORY
4/12—Revision 0: Initial Version
Rev. 0 | Page 2 of 24
Data Sheet
SPECIFICATIONS
AD5452W
V
DD
= 2.5 V to 5.5 V, V
REF
= 10 V. T
A
= full operating temperature range. All specifications T
MIN
to T
MAX
, unless otherwise noted. DC
performance measured with
OP177
and ac performance measured with
AD8038,
unless otherwise noted.
Table
1.
Parameter
STATIC PERFORMANCE
Resolution
Relative Accuracy
Differential Nonlinearity
Total Unadjusted Error
Gain Error
Gain Error Temperature Coefficient
1
Output Leakage Current
REFERENCE INPUT
1
Reference Input Range
V
REF
Input Resistance
R
FB
Feedback Resistance
Input Capacitance
Zero-Scale Code
Full-Scale Code
DIGITAL INPUTS/OUTPUTS
1
Input High Voltage, V
IH
Input Low Voltage, V
IL
Output High Voltage, V
OH
Output Low Voltage, V
OL
Input Leakage Current, I
IL
Input Capacitance
DYNAMIC PERFORMANCE
1
Reference Multiplying BW
Multiplying Feedthrough Error
V
DD
− 1
V
DD
− 0.5
0.4
0.4
±1
±10
10
12
72
64
44
Output Voltage Settling Time
Measured to ±1 mV of FS
Measured to ±4 mV of FS
Measured to ±16 mV of FS
Digital Delay
10% to 90% Settling Time
Digital-to-Analog Glitch Impulse
Output Capacitance
I
OUT
1
100
24
16
20
10
2
13
28
110
40
33
40
30
ns
ns
ns
ns
ns
nV-sec
pF
pF
Min
Typ
Max
12
±0.5
±1
±1
±0.5
±2
±1
±10
±10
9
9
18
18
2.0
1.7
0.8
0.7
Unit
Bits
LSB
LSB
LSB
LSB
ppm FSR/°C
nA
nA
V
kΩ
kΩ
pF
pF
V
V
V
V
V
V
V
V
nA
nA
pF
MHz
dB
dB
dB
V
DD
= 3.6 V to 5 V
V
DD
= 2.5 V to 3.6 V
V
DD
= 2.7 V to 5.5 V
V
DD
= 2.5 V to 2.7 V
V
DD
= 4.5 V to 5 V, I
SOURCE
= 200 µA
V
DD
= 2.5 V to 3.6 V, I
SOURCE
= 200 µA
V
DD
= 4.5 V to 5 V, I
SINK
= 200 µA
V
DD
= 2.5 V to 3.6 V, I
SINK
= 200 µA
T
A
= 25°C
T
A
= −40°C to +125°C
Test Conditions/Comments
Guaranteed monotonic
Data = 0x0000, T
A
= 25°C, I
OUT
1
Data = 0x0000, T
A
= −40°C to +125°C, I
OUT
1
7
7
11
11
22
22
Input resistance, TC = −50 ppm/°C
Input resistance, TC = −50 ppm/°C
V
REF
= ±3.5 V, DAC loaded with all 1s
V
REF
= ±3.5 V, DAC loaded with all 0s
100 kHz
1 MHz
10 MHz
V
REF
= 10 V, R
LOAD
= 100 Ω; DAC latch alternately
loaded with 0s and 1s
Interface delay time
Rise and fall times, V
REF
= 10 V, R
LOAD
= 100 Ω
1 LSB change around major carry, V
REF
= 0 V
DAC latches loaded with all 0s
DAC latches loaded with all 1s
Rev. 0 | Page 3 of 24
AD5452W
Parameter
Digital Feedthrough
Analog THD
Digital THD
50 kHz f
OUT
20 kHz f
OUT
Output Noise Spectral Density
SFDR Performance (Wideband)
50 kHz f
OUT
20 kHz f
OUT
SFDR Performance (Narrow-Band)
50 kHz f
OUT
20 kHz f
OUT
Intermodulation Distortion
POWER REQUIREMENTS
Power Supply Range
I
DD
Power Supply Sensitivity
1
1
Data Sheet
Min
Typ
0.5
83
71
77
25
78
74
87
85
79
2.5
0.4
5.5
10
0.6
0.001
Max
Unit
nV-sec
dB
dB
dB
nV/√Hz
dB
dB
Clock = 1 MHz, V
REF
= 3.5 V
dB
dB
dB
V
µA
µA
%/%
Test Conditions/Comments
Feedthrough to DAC output with CS high and
alternate loading of all 0s and all 1s
V
REF
= 3.5 V p-p, all 1s loaded, f = 1 kHz
Clock = 1 MHz, V
REF
= 3.5 V
@ 1 kHz
Clock = 1 MHz, V
REF
= 3.5 V
f
1
= 20 kHz, f
2
= 25 kHz, clock = 1 MHz, V
REF
= 3.5 V
T
A
= −40°C to +125°C, logic inputs = 0 V or V
DD
T
A
= 25°C, logic inputs = 0 V or V
DD
∆V
DD
= ±5%
Guaranteed by design and characterization; not subject to production test.
Rev. 0 | Page 4 of 24
Data Sheet
TIMING CHARACTERISTICS
AD5452W
All input signals are specified with t
R
= t
F
= 1 ns (10% to 90% of V
DD
) and timed from a voltage level of (V
IL
+ V
IH
)/2. V
DD
= 2.5 V to 5.5 V,
V
REF
= 10 V, T
A
= full operating temperature range. All specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 2.
Parameter
1
f
SCLK
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
Update Rate
1
V
DD
= 2.5 V to 5.5 V
50
20
8
8
8
5
4.5
5
30
2.7
Unit
MHz max
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
MSPS
Conditions/Comments
Maximum clock frequency
SCLK cycle time
SCLK high time
SCLK low time
SYNC falling edge to SCLK active edge setup time
Data setup time
Data hold time
SYNC rising edge to SCLK active edge
Minimum SYNC high time
Consists of cycle time, SYNC high time, data setup, and
output voltage settling time
Guaranteed by design and characterization, not subject to production test.
t
1
SCLK
t
2
t
8
SYNC
t
3
t
7
t
4
t
6
t
5
SDIN
DB15
DB0
10657-002
Figure 2. Timing Diagram
Rev. 0 | Page 5 of 24
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