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Analog Devices Semiconductor Electronic Components Datasheet

AD5318 Datasheet

8-/10-/12-Bit DACs

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AD5318 pdf
2.5 V to 5.5 V Octal Voltage Output
8-/10-/12-Bit DACs in 16-Lead TSSOP
AD5308/AD5318/AD5328
FEATURES
AD5308: 8 buffered 8-bit DACs in 16-lead TSSOP
A version: ±1 LSB INL, B version: ±0.75 LSB INL
AD5318: 8 buffered 10-bit DACs in 16-lead TSSOP
A version: ±4 LSB INL, B version: ±3 LSB INL
AD5328: 8 buffered 12-bit DACs in 16-lead TSSOP
A version: ±16 LSB INL, B version: ±12 LSB INL
Low power operation: 0.7 mA @ 3 V
Guaranteed monotonic by design over all codes
Power-down to 120 nA @ 3 V, 400 nA @ 5 V
Double-buffered input logic
Buffered/unbuffered/VDD reference input options
Output range: 0 V to VREF or 0 V to 2 VREF
Power-on reset to 0 V
Programmability
Individual channel power-down
Simultaneous update of outputs (LDAC)
Low power, SPI-®, QSPI-™, MICROWIRE-™, and DSP-
compatible 3-wire serial interface
On-chip rail-to-rail output buffer amplifiers
Temperature range: −40°C to +125°C
Qualified for automotive applications
APPLICATIONS
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Optical networking
Automatic test equipment
Mobile communications
Programmable attenuators
Industrial process control
GENERAL DESCRIPTION
The AD5308/AD5318/AD5328 are octal 8-, 10-, and 12-bit
buffered voltage output DACs in a 16-lead TSSOP. They operate
from a single 2.5 V to 5.5 V supply, consuming 0.7 mA typical
at 3 V. Their on-chip output amplifiers allow the outputs to
swing rail-to-rail with a slew rate of 0.7 V/μs. The AD5308/
AD5318/AD5328 use 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 references for the eight DACs are derived from two
reference pins (one per DAC quad). These reference inputs can
be configured as buffered, unbuffered, or VDD inputs. The parts
incorporate a power-on reset circuit, which ensures that the
DAC outputs power up to 0 V and remain there until a valid
write to the device takes place. The outputs of all DACs may be
updated simultaneously using the asynchronous LDAC input.
The parts contain a power-down feature that reduces the current
consumption of the devices to 400 nA at 5 V (120 nA at 3 V).
The eight channels of the DAC may be powered down individually.
All three parts are offered in the same pinout, which allows
users to select the resolution appropriate for their application
without redesigning their circuit board.
Rev. F
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. Specifications subject to change without notice. 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 ©2002–2011 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD5318 Datasheet

8-/10-/12-Bit DACs

No Preview Available !

AD5318 pdf
AD5308/AD5318/AD5328
TABLE OF CONTENTS
Features .............................................................................................. 1 
Applications....................................................................................... 1 
General Description ......................................................................... 1 
Revision History ............................................................................... 2 
Functional Block Diagram .............................................................. 3 
Specifications..................................................................................... 4 
Absolute Maximum Ratings............................................................ 7 
ESD Caution.................................................................................. 7 
Pin Configuration and Function Descriptions............................. 8 
Typical Performance Characteristics ............................................. 9 
Terminology .................................................................................... 13 
Theory of Operation ...................................................................... 15 
Digital-to-Analog Converter .................................................... 15 
Resistor String ............................................................................. 15 
Output Amplifier........................................................................ 15 
Power-On Reset .......................................................................... 16 
Power-Down Mode .................................................................... 16 
Serial Interface ............................................................................ 16 
REVISION HISTORY
4/11—Rev. E to Rev. F
Added Automotive Products Information ................. Throughout
2/11—Rev. D to Rev. E
Change to Temperature Range .................................... Throughout
Changes to Table 3, t4 Timing Characteristics .............................. 6
3/07—Rev. C to Rev. D
Updated Format..................................................................Universal
Changes to Absolute Maximum Ratings Section......................... 7
9/05—Rev. B to Rev. C
Updated Format..................................................................Universal
Change to Equation........................................................................ 21
11/03—Rev. A to Rev. B
Changes to Ordering Guide ............................................................ 4
Changes to Y axis on TPCs 12, 13, and 15 .................................... 9
8/03—Rev. 0 to Rev. A
Added A Version.................................................................Universal
Changes to Features.......................................................................... 1
Changes to Specifications ................................................................ 2
Edits to Absolute Maximum Ratings ............................................. 4
Edits to Ordering Guide .................................................................. 4
Updated Outline Dimensions ....................................................... 18
Low Power Serial Interface ....................................................... 18 
Load DAC Input (LDAC) Function......................................... 18 
Double-Buffered Interface ........................................................ 18 
Microprocessor Interface............................................................... 19 
ADSP-2101/ADSP-2103-to-AD5308/AD5318/AD5328
Interface ....................................................................................... 19 
68HC11/68L11-to-AD5308/AD5318/AD5328 Interface ..... 19 
80C51/80L51-to-AD5308/AD5318/AD5328 Interface......... 19 
Microwire-to-AD5308/AD5318/AD5328 Interface.............. 20 
Applications Information .............................................................. 21 
Typical Application Circuit....................................................... 21 
Driving VDD from the Reference Voltage ................................ 21 
Bipolar Operation Using the AD5308/AD5318/AD5328..... 21 
Opto-Isolated Interface for Process Control Applications ... 21 
Decoding Multiple AD5308/AD5318/AD5328s.................... 22 
Outline Dimensions ....................................................................... 24 
Ordering Guide .......................................................................... 24 
Rev. F | Page 2 of 28


Part Number AD5318
Description 8-/10-/12-Bit DACs
Maker Analog Devices
Total Page 28 Pages
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