12-Bit High Bandwidth
Multiplying DAC with Serial Interface
Data Sheet
AD5452W
FEATURES
FUNCTIONAL BLOCK DIAGRAM
V
V
REF
DD
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
R
FB
AD5452W
R
12-BIT REF
R-2R DAC
I
1
OUT
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
DAC REGISTER
INPUT LATCH
POWER-ON
RESET
SYNC
SCLK
SDIN
CONTROL LOGIC
AND INPUT SHIFT
REGISTER
Qualified for automotive applications
APPLICATIONS
GND
Portable battery-powered applications
Waveform generators
Figure 1.
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
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.
The applied external reference input voltage (VREF) 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 (RFB)
provides temperature tracking and full-scale voltage output
when combined with an external current-to-voltage precision
amplifier.
As a result of manufacture on a CMOS submicron process, this
DAC offers excellent four-quadrant multiplication characteris-
tics of up to 12 MHz.
The AD5452W DAC is available in an 8-lead MSOP package.
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.
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
rightsof third parties that may result fromits 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 andregisteredtrademarks 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
Fax: 781.461.3113
www.analog.com
©2012 Analog Devices, Inc. All rights reserved.