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AD5300BRTZ-500RL7 Scheda tecnica(PDF) 1 Page - Analog Devices

Il numero della parte AD5300BRTZ-500RL7
Spiegazioni elettronici  2.7 V to 5.5 V, 140 muA, Rail-to-Rail Output 8-Bit DAC in a SOT-23
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

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2.7 V to 5.5 V, 140 μA, Rail-to-Rail Output
8-Bit DAC in a SOT-23
AD5300
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
©2003–2010 Analog Devices, Inc. All rights reserved.
FEATURES
Single 8-Bit DAC
6-Lead SOT-23 and 8-Lead MSOP Packages
Micropower Operation: 140 μA @ 5 V
Power-Down to 200 nA @ 5 V, 50 nA @ 3 V
2.7 V to 5.5 V Power Supply
Guaranteed Monotonic by Design
Reference Derived from Power Supply
Power-On Reset to 0 V
3 Power-Down Functions
Low Power Serial Interface with Schmitt-Triggered Inputs
On-Chip Output Buffer Amplifier, Rail-to-Rail Operation
SYNC Interrupt Facility
Qualified for automotive applications
APPLICATIONS
Portable Battery-Powered Instruments
Digital Gain and Offset Adjustment
Programmable Voltage and Current Sources
Programmable Attenuators
FUNCTIONAL BLOCK DIAGRAM
AD5300
GND
SYNC SCLK DIN
VDD
VOUT
OUTPUT
BUFFER
8-BIT
DAC
REF (+) REF (–)
POWER-ON
RESET
DAC
REGISTER
INPUT
CONTROL
LOGIC
POWER-DOWN
CONTROL LOGIC
RESISTOR
NETWORK
GENERAL DESCRIPTION
The AD5300 is a single, 8-bit buffered voltage output DAC that
operates from a single 2.7 V to 5.5 V supply, consuming 115 μA
at 3 V. Its on-chip precision output amplifier allows rail-to-rail
output swing to be achieved. The AD5300 uses a versatile 3-wire
serial interface that operates at clock rates up to 30 MHz and is
compatible with standard SPI®, QSPI™, MICROWIRE™, and
DSP interface standards.
The reference for the AD53001 is derived from the power supply
inputs and thus gives the widest dynamic output range. The part
incorporates a power-on reset circuit that ensures that the DAC
output powers up to 0 V and remains there until a valid write takes
place to the device. The part contains a power-down feature that
reduces the current consumption of the device to 200 nA at 5 V
and provides software selectable output loads while in power-
down mode. The part is put into power-down mode over the
serial interface.
The low power consumption of this part in normal operation
makes it ideally suited to portable battery-operated equipment.
The power consumption is 0.7 mW at 5 V, reducing to 1 μW in
power-down mode.
The AD5300 is one of a family of pin-compatible DACs. The
AD5310 is the 10-bit version, and the AD5320 is the 12-bit
version. The AD5300/AD5310/AD5320 are available in 6-lead
SOT-23 packages and 8-lead MSOP packages.
PRODUCT HIGHLIGHTS
1.
Available in 6-lead SOT-23 and 8-lead MSOP packages.
2.
Low power, single-supply operation. This part operates from a
single 2.7 V to 5.5 V supply and typically consumes 0.35 mW
at 3 V and 0.7 mW at 5 V, making it ideal for battery-powered
applications.
3.
The on-chip output buffer amplifier allows the output of
the DAC to swing rail-to-rail with a slew rate of 1 V/μs.
4.
Reference derived from the power supply.
5.
High speed serial interface with clock speeds up to 30 MHz.
Designed for very low power consumption. The interface
powers up only during a write cycle.
6.
Power-down capability. When powered down, the DAC
typically consumes 50 nA at 3 V and 200 nA at 5 V.
1 Patent pending; protected by U.S. Patent No. 5684481.


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