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AD5624BCPZ-REEL7 Folha de dados(PDF) 1 Page - Analog Devices

Nome de Peças AD5624BCPZ-REEL7
Descrição Electrónicos  2.7 V to 5.5 V, 450 關A, Rail-to-Rail Output, Quad, 12-/16-Bit nanoDACs
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD5624BCPZ-REEL7 Folha de dados(HTML) 1 Page - Analog Devices

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2.7 V to 5.5 V, 450 μA, Rail-to-Rail Output,
Quad, 12-/16-Bit nanoDACs®
AD5624/AD5664
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
©2006 Analog Devices, Inc. All rights reserved.
FEATURES
Low power, quad nanoDACs
AD5664: 16 bits
AD5624: 12 bits
Relative accuracy: ±12 LSBs max
Guaranteed monotonic by design
10-lead MSOP and 3 mm × 3 mm LFCSP_WD
2.7 V to 5.5 V power supply
Power-on reset to zero
Per channel power-down
Serial interface, up to 50 MHz
APPLICATIONS
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
FUNCTIONAL BLOCK DIAGRAM
INTERFACE
LOGIC
SCLK
SYNC
DIN
INPUT
REGISTER
DAC
REGISTER
VDD
GND
POWER-ON
RESET
STRING
DAC A
BUFFER
VREF
VOUTA
INPUT
REGISTER
DAC
REGISTER
STRING
DAC B
BUFFER
VOUTB
INPUT
REGISTER
DAC
REGISTER
STRING
DAC C
BUFFER
VOUTC
INPUT
REGISTER
DAC
REGISTER
STRING
DAC D
BUFFER
VOUTD
AD5624/AD5664
POWER-DOWN
LOGIC
Figure 1.
Table 1. Related Devices
Part No.
Description
AD5624R/AD5644R/AD5664R
2.7 V to 5.5 V quad, 12-, 14-,
16-bit DACs with internal
reference
GENERAL DESCRIPTION
The AD5624/AD5664, members of the nanoDAC family, are
low power, quad, 12-, 16-bit buffered voltage-out DACs that
operate from a single 2.7 V to 5.5 V supply and are guaranteed
monotonic by design.
The AD5624/AD5664 require an external reference voltage to
set the output range of the DAC. The part incorporates a power-
on reset circuit that ensures the DAC output powers up to 0 V
and remains there until a valid write takes place. The parts
contain a power-down feature that reduces the current
consumption of the device to 480 nA at 5 V and provides
software-selectable output loads while in power-down mode.
The low power consumption of these parts in normal operation
makes them ideally suited to portable battery-operated
equipment. The power consumption is 2.25 mW at 5 V, going
down to 2.4 μW in power-down mode.
The AD5624/AD5664 on-chip precision output amplifier allows
rail-to-rail output swing to be achieved.
The AD5624/AD5664 use a versatile 3-wire serial interface that
operates at clock rates up to 50 MHz, and are compatible with
standard SPI®, QSPI™, MICROWIRE™, and DSP interface
standards.
PRODUCT HIGHLIGHTS
1.
Relative accuracy: ±12 LSBs maximum.
2.
Available in 10-lead MSOP and 10-lead, 3 mm × 3 mm,
LFCSP_WD.
3.
Low power, typically consumes 1.32 mW at 3 V and
2.25 mW at 5 V.
4.
Maximum settling time of 4.5 μs (AD5624) and 7 μs
(AD5664).


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