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AD5426YRM-REEL7 Datasheet

  • AD5426YRM-REEL7

  • 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial In...

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8-/10-/12-Bit High Bandwidth
Multiplying DACs with Serial Interface
AD5426/AD5432/AD5443
*
FEATURES
3.0 V to 5.5 V Supply Operation
50 MHz Serial Interface
10 MHz Multiplying Bandwidth
10 V Reference Input
Low Glitch Energy < 2 nV-s
Extended Temperature Range 鈥?0 C to +125 C
10-Lead MSOP Package
Pin Compatible 8-, 10-, and 12-Bit Current
Output DACs
Guaranteed Monotonic
4-Quadrant Multiplication
Power-On Reset with Brownout Detection
Daisy-chain Mode
Readback Function
0.4 A Typical Power Consumption
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
GENERAL DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
V
DD
V
REF
R
8-/10-/12-BIT
R-2R DAC
R
FB
I
OUT
1
I
OUT
2
AD5426/
AD5432/
AD5443
DAC REGISTER
POWER-ON
RESET
INPUT LATCH
SYNC
SCLK
SDIN
CONTROL LOGIC AND
INPUT SHIFT REGISTER
SDO
GND
The AD5426/AD5432/AD5443 are CMOS 8-, 10-, and 12-bit
current output digital-to-analog converters, respectively.
These devices operate from a 3.0 V to 5.5 V power supply,
making them suited to battery-powered applications and many
other applications.
These DACs utilize double buffered 3-wire serial interface that
is compatible with SPI
廬
, QSPI鈩? MICROWIRE鈩? and most
DSP interface standards. In addition, a serial data out pin (SDO)
allows for daisy-chaining when multiple packages are used. Data
readback allows the user to read the contents of the DAC register
via the SDO pin. On power-up, the internal shift register and
latches are filled with 0s and the DAC outputs are at zero scale.
As a result of manufacture on a CMOS submicron process, they
offer excellent 4-quadrant multiplication characteristics, with
large signal multiplying bandwidths of 10 MHz.
The applied external reference input voltage (V
REF
) determines
the full-scale output current. 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 AD5426/AD5432/AD5443 DACs are available in small
10-lead MSOP packages.
*U.S.
Patent No. 5,689,257
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. 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: 781/326-8703
漏 2004 Analog Devices, Inc. All rights reserved.

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