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Analog Devices Semiconductor Electronic Components Datasheet

AD5749 Datasheet

Industrial Current Out Drive

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AD5749 pdf
Data Sheet
Industrial Current Out Driver, Single-Supply,
55 V Maximum Supply, Programmable Ranges
AD5749
FEATURES
Current output ranges: 0 mA to 24 mA or 4 mA to 20 mA
±0.03% FSR typical total unadjusted error (TUE)
±5 ppm/°C typical output drift
2% overrange
Flexible serial digital interface
On-chip output fault detection
PEC error checking
Asynchronous CLEAR function
Power supply range
AVDD: 12 V (± 10%) to 55 V (maximum)
Output loop compliance to AVDD − 2.75 V
Temperature range: −40°C to +105°C
32-lead, 5 mm × 5 mm LFCSP package
APPLICATIONS
Process control
Actuator control
PLCs
GENERAL DESCRIPTION
The AD5749 is a single channel, low cost, precision, current output
driver with hardware or software programmable output ranges.
The software ranges are configured via an SPI-/MICROWIRE™-
compatible serial interface. The AD5749 targets applications in
PLC and industrial process control. The analog input to the
AD5749 is provided from a low voltage, single-supply digital-to-
analog converter (DAC) and is internally conditioned to provide
the desired output current/voltage range.
The output current range is programmable across two current
ranges: 0 mA to 24 mA, or 4 mA to 20 mA. Current output is
open-circuit protected and can drive inductive loads of 0.1 H.
The device is specified to operate with a power supply range
from 10.8 V to 55 V. Output loop compliance is 0 V to AVDD
2.75 V.
The flexible serial interface is SPI and MICROWIRE compatible
and can be operated in 3-wire mode to minimize the digital
isolation required in isolated applications. The interface also
features an optional PEC error checking feature using CRC-8
FUNCTIONAL BLOCK DIAGRAM
DVCC GND AVDD GND
CLEAR
CLRSEL
SCLK/OUTEN*
SDIN/R0*
SYNC/RSET*
SDO/VFAULT*
HW SELECT
VIN
INPUT SHIFT
REGISTER
AND
CONTROL
LOGIC
AD5749
AVDD
STATUS
REGISTER
R2
R3
VREF
RESET
IOUT RANGE
SCALING
IOUT
FAULT/TEMP*
NC/IFAULT*
OVERTEMP
IOUT OPEN FAULT
IOUT OPEN FAULT
RSET
POWER-
ON RESET
IOUT
OPEN FAULT
REXT1
REXT2
AD2/R1* AD1/R2* AD0/R3*
*DENOTES SHARED PIN. SOFTWARE MODE DENOTED BY REGULAR TEXT,
HARDWARE MODE DENOTED BY ITALIC TEXT. FOR EXAMPLE, FOR
FAULT/TEMP PIN, IN SOFTWARE MODE, THIS PIN TAKES ON FAULT
FUNCTION. IN HARDWARE MODE, THIS PIN TAKES ON TEMP FUNCTION.
Figure 1.
error checking, useful in industrial environments where data
communication corruption can occur.
The device also includes a power-on reset function ensuring
that the device powers up in a known state and an asynchron-
ous CLEAR pin that sets the outputs to the low end of the
selected current range.
An HW SELECT pin is used to configure the part for hardware
or software mode on power-up.
Table 1. Related Devices
Part No. Description
AD5750
Industrial current/voltage output (I/V) driver with
programmable ranges
AD5751
Industrial I/V output driver, single-supply, 55 V maximum
supply, programmable ranges
AD5748 Industrial I/V output driver with programmable ranges
AD5410/
AD5420
Single-channel, 12-/16-bit, serial input, current source
output DAC
AD5412/
AD5422
Single-channel, 12-/16-bit, serial input, I/V output DAC
Rev. B
Document Feedback
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 ©2010–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

AD5749 Datasheet

Industrial Current Out Drive

No Preview Available !

AD5749 pdf
AD5749* Product Page Quick Links
Last Content Update: 10/05/2016
Comparable Parts
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Evaluation Kits
• AD5750 Evaluation Board
Documentation
Data Sheet
• AD5749: Industrial Current Out Driver, Single-Supply, 55
V Maximum Supply, Programmable Ranges Data Sheet
Design Resources
• AD5749 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
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* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.


Part Number AD5749
Description Industrial Current Out Drive
Maker Analog Devices
Total Page 29 Pages
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