8-/10-/12-/14-Bit High Bandwidth
Multiplying DACs with Serial Interface
Data Sheet
AD5450/AD5451/AD5452/AD5453
FEATURES FUNCTIONAL BLOCK DIAGRAM
12 MHz multiplying bandwidth V V
DD REF
INL of 0.25 LSB at 8-bit
R
FB
8-lead TSOT and MSOP packages
R
AD5450/
2.5 V to 5.5 V supply operation
AD5451/
8-/10-/12-/14-BIT REF
AD5452/ I 1
OUT
Pin-compatible 8-/10-/12-/14-bit current output DACs R-2R DAC
AD5453
10 V reference input
50 MHz serial interface
DAC REGISTER
2.7 MSPS update rate
POWER-ON
Extended temperature range: 40C to +125C
RESET
4-quadrant multiplication
INPUT LATCH
Power-on reset with brownout detect
<0.4 A typical current consumption
SYNC
CONTROL LOGIC
Guaranteed monotonic SCLK AND INPUT SHIFT
REGISTER
SDIN
Qualified for automotive applications
GND
APPLICATIONS
Figure 1.
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
GENERAL DESCRIPTION
1
The AD5450/AD5451/AD5452/AD5453 are CMOS 8-/10-/12-/ The applied external reference input voltage (VREF) determines
14-bit current output digital-to-analog converters, respectively. the full-scale output current. These parts can handle 10 V
These devices operate from a 2.5 V to 5.5 V power supply, inputs on the reference, despite operating from a single-supply
making them suited to several applications, including battery- power supply of 2.5 V to 5.5 V. An integrated feedback resistor
powered applications. (RFB) provides temperature tracking and full-scale voltage
output when combined with an external current-to-voltage
As a result of manufacture on a CMOS submicron process,
precision amplifier.
these DACs offer excellent 4-quadrant multiplication
characteristics of up to 12 MHz. The AD5450/AD5451/AD5452/AD5453 DACs are available in
small 8-lead TSOT, and the AD5452/AD5453 are also available
These DACs use a double-buffered, 3-wire serial interface that
in MSOP packages. The AD5453 also comes in 8-lead LFCSP.
is compatible with SPI, QSPI, MICROWIRE, and most DSP
interface standards. Upon power-up, the internal shift register The EV-AD5443/46/53SDZ evaluation board is available for
and latches are filled with 0s, and the DAC output is at zero scale. evaluating DAC performance. For more information, see the UG-
327 evaluation board user guide.
1
U.S. Patent Number 5,689,257.
Rev. G Document Feedback
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04587-001AD5450/AD5451/AD5452/AD5453 Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1 DAC Section ................................................................................ 16
Applications ....................................................................................... 1 Circuit Operation ....................................................................... 16
Functional Block Diagram .............................................................. 1 Single-Supply Applications ....................................................... 18
General Description ......................................................................... 1 Adding Gain ................................................................................ 18
Revision History ............................................................................... 2 Divider or Programmable Gain Element ................................ 19
Specif icat ions ..................................................................................... 3 Reference Selection .................................................................... 19
Timing Characteristics ................................................................ 5 Amplifier Selection .................................................................... 19
Absolute Maximum Ratings ............................................................ 6 Serial Interface ............................................................................ 21
ESD Caution .................................................................................. 6 Microprocessor Interfacing ....................................................... 22
Pin Configurations and Function Descriptions ........................... 7 PCB Layout and Power Supply Decoupling ........................... 24
Typical Performance Characteristics ............................................. 8 Outline Dimensions ....................................................................... 26
Terminology .................................................................................... 15 Ordering Guide .......................................................................... 27
General Description ....................................................................... 16 Automotive Products ................................................................. 27
REVISION HISTORY
1/10Rev. B to Rev. C
6/13Rev. F to Rev. G
Changes to DAC Control Bits C1, C0 .......................................... 21
Change to General Description Section ........................................ 1
Updated Outline Dimensions ....................................................... 27
Change to Figure 56 and Figure 57 .............................................. 22
Changes to Ordering Guide .......................................................... 28
Updated Outline Dimensions ....................................................... 27
Changes to Ordering Guide .......................................................... 27
3/06Rev. A to Rev. B
Updated Format .................................................................. Universal
4/12Rev. E to Rev. F
Changes to Features .......................................................................... 1
Changes to General Description Section ...................................... 1
Changes to General Description ..................................................... 1
Deleted Evaluation Board for the DAC Section, Power Supplies
Changes to Specifications ................................................................. 4
for the Evaluation Board Section, and Figure 64;
Changes to Figure 27 and Figure 28............................................. 11
Renumbered Sequentially .............................................................. 25
Change to Table 9 ........................................................................... 20
Deleted Figure 65 and Figure 66 ................................................... 26
Changes to Table 12 ....................................................................... 26
Deleted Figure 67 ............................................................................ 27
Updated Outline Dimensions ....................................................... 27
Changes to Ordering Guide .......................................................... 27
Changes to Ordering Guide .......................................................... 28
3/11Rev. D to Rev. E
7/05Rev. 0 to Rev. A
Changes to SYNC Function Section ............................................ 21
Added AD5453 ................................................................... Universal
Added Figure 54 (Renumbered Sequentially) ............................ 21
Changes to Specifications ................................................................. 4
Added Figure 55 and Table 11 ..................................................... 22
Change to Figure 21 ....................................................................... 10
Updated Outline Dimensions ....................................................... 27
2/11Rev. C to Rev. D
Changes to Ordering Guide .......................................................... 28
Added 8-Lead LFCSP ......................................................... Universal
Changes to Features Section............................................................ 1
1/05Revision 0: Initial Version
Updated Outline Dimensions ....................................................... 27
Changes to Ordering Guide .......................................................... 28
Added Automotive Products Section .......................................... 28
Rev. G | Page 2 of 28