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AD5737ACPZ-RL7 Datenblatt(PDF) 1 Page - Analog Devices

Teilenummer AD5737ACPZ-RL7
Bauteilbeschribung  Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA Output
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Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5737ACPZ-RL7 Datenblatt(HTML) 1 Page - Analog Devices

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Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA Output
DAC with Dynamic Power Control and HART Connectivity
Data Sheet
AD5737
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
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
©2011–2012 Analog Devices, Inc. All rights reserved.
FEATURES
12-bit resolution and monotonicity
Dynamic power control for thermal management
or external PMOS mode
Current output ranges: 0 mA to 20 mA, 4 mA to 20 mA,
and 0 mA to 24 mA
±0.1% total unadjusted error (TUE) maximum
User-programmable offset and gain
On-chip diagnostics
On-chip reference: ±10 ppm/°C maximum
−40°C to +105°C temperature range
APPLICATIONS
Process control
Actuator control
PLCs
HART network connectivity
GENERAL DESCRIPTION
The AD5737 is a quad-channel current output DAC that
operates with a power supply range from 10.8 V to 33 V.
On-chip dynamic power control minimizes package power
dissipation by regulating the voltage on the output driver from
7.4 V to 29.5 V using a dc-to-dc boost converter optimized for
minimum on-chip power dissipation.
Each channel has a corresponding CHART pin so that HART
signals can be coupled onto the current output of the AD5737.
The AD5737 uses a versatile 3-wire serial interface that operates
at clock rates of up to 30 MHz and is compatible with standard
SPI, QSPI™, MICROWIRE®, DSP, and microcontroller interface
standards. The serial interface also features optional CRC-8 packet
error checking, as well as a watchdog timer that monitors activity
on the interface.
PRODUCT HIGHLIGHTS
1. Dynamic power control for thermal management.
2. 12-bit performance.
3. Quad channel.
4. HART compliant.
COMPANION PRODUCTS
Product Family: AD5755, AD5755-1, AD5757, AD5735
HART Modem: AD5700, AD5700-1
External References: ADR445, ADR02
Digital Isolators: ADuM1410, ADuM1411
Power: ADP2302, ADP2303
Additional companion products on the AD5737 product page
FUNCTIONAL BLOCK DIAGRAM
AD5737
AGND
AVDD
+15V
AVCC
5.0V
DVDD
DGND
LDAC
CLEAR
SCLK
SDIN
SYNC
SDO
FAULT
DC-TO-DC
CONVERTER
DIGITAL
INTERFACE
REFERENCE
CURRENT
OUTPUT RANGE
SCALING
ALERT
REFOUT
REFIN
NOTES
1. x = A, B, C, OR D.
AD1
AD0
DAC A
SWx
VBOOST_x
GAIN REG A
OFFSET REG A
RSET_x
CHARTx
IOUT_x
DAC CHANNE L B
DAC CHANNE L A
DAC CHANNE L C
DAC CHANNE L D
7.4V TO 29.5V
+
Figure 1.


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