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Analog Devices Semiconductor Electronic Components Datasheet

AD5755 Datasheet

Quad Channel 16-Bit Serial Input - 4-20mA & Voltage Output DAC Dynamic Power Control

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AD5755 pdf
Preliminary Technical Data
FEATURES
16/12-Bit Resolution and Monotonicity
Dynamic Power Control for Thermal Management
Voltage or Current Output on the Same Pin
IOUT Range: 0mA-20mA, 4mA–20mA or 0mA–24mA
±0.05% Total Unadjusted Error (TUE) Max
VOUT Range: 0-5V, 0-10V, ±5V, ±10V,±6V,±12V
±0.04% Total Unadjusted Error (TUE) Max
User programmable Offset and Gain
On Chip Diagnostics
On-Chip Reference (±5 ppm/°C)
−40°C to +105°C Temperature Range
APPLICATIONS
Process Control
Actuator Control
PLC’s
PRODUCT HIGHLIGHTS
Dynamic Power Control for Thermal management
16bit performance
Multi-channel
Quad Cwhwwa.DnantaeShle,et41U6.co-mBit,
Serial Input, 4-20mA & Voltage Output DAC,
Dynamic Power Control
AD5755/AD5735
GENERAL DESCRIPTION
The AD5755/AD5735 is a quad, voltage and current output
DAC, which operates with a power supply range from -26v to
+33v. On chip dynamic power control minimizes package
power dissipation in current mode. This is achieved by
regulating the voltage on the output driver from between 7V-
30V.
The part uses a versatile 3-wire serial interface that operates at
clock rates up to 30 MHz and that is compatible with standard
SPI®, QSPI™, MICROWIRE™, DSP and microcontroller
interface standards. The interface also features optional CRC-8
packet error checking as well as a watchdog timer that monitors
activity on the interface.
Table 1. Complementary Devices
Part No.
Description
ADR445
5V, Ultralow Noise, LDO XFET Voltage
Reference with Current Sink and Source
ADP1871
Synchronous Buck Controller with Constant
On-Time, Valley Current Mode, and Power
Save Mode
Figure 1.
Rev. PrG
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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
©2010 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD5755 Datasheet

Quad Channel 16-Bit Serial Input - 4-20mA & Voltage Output DAC Dynamic Power Control

No Preview Available !

AD5755 pdf
AD5755/AD5735
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Product Highlights ........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
AC Performance Characteristics ................................................ 6
Timing Characteristics ................................................................ 8
Absolute Maximum Ratings.......................................................... 11
ESD Caution................................................................................ 11
Pin Configuration and Function Descriptions........................... 12
Typical Performance Characteristics ........................................... 15
Theory of Operation ...................................................................... 16
DAC Architecture....................................................................... 16
Power On State of AD5755/AD5735 ....................................... 16
Serial Interface ............................................................................ 17
Transfer Function ....................................................................... 17
Registers ........................................................................................... 18
Programming Sequence to Write/Enable the Output
Correctly ...................................................................................... 19
Changing and Reprogramming the Range ............................. 19
Data Registers ............................................................................. 20
Control Registers ........................................................................ 23
Readback Operation .................................................................. 26
Preliminary Technical Datawww.DataSheet4U.com
Features ............................................................................................ 28
Output Fault ................................................................................ 28
Voltage Output Short Circuit Protection ................................ 28
Digital Offset and Gain Control............................................... 28
Status Readback During Write ................................................. 28
Asynchronous Clear................................................................... 29
Packet Error Checking............................................................... 29
Watchdog timer .......................................................................... 29
Output Alert................................................................................ 29
Internal Reference ...................................................................... 29
External current setting resistor............................................... 29
Slew rate control ......................................................................... 29
Power Dissipation control......................................................... 30
DC-DC Converters .................................................................... 30
Applications Information .............................................................. 32
Precision Voltage Reference Selection..................................... 32
Driving Inductive Loads............................................................ 32
Transient voltage protection ..................................................... 32
Microprocessor Interfacing....................................................... 32
Layout Guidelines....................................................................... 33
Galvanically Isolated Interface ................................................. 33
Outline Dimensions ....................................................................... 34
Ordering Guide .......................................................................... 34
Rev. PrG | Page 2 of 34


Part Number AD5755
Description Quad Channel 16-Bit Serial Input - 4-20mA & Voltage Output DAC Dynamic Power Control
Maker Analog Devices
Total Page 30 Pages
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