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AD5751 用户编程技术手册 - ADI（亚德诺）
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工业电流/电压输出驱动器 Industrial Current/Voltage Output Driver
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AD5751数据手册
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Industrial I/V Output Driver, Single-Supply,
55 V Maximum Supply, Programmable Ranges
Data Sheet
AD5751
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.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2009–2013 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
Current output ranges: 0 mA to 20 mA, 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
Voltage output ranges: 0 V to 5 V, 0 V to 10 V, 0 V to 40 V
±0.02% FSR typical total unadjusted error (TUE)
±3 ppm/°C typical output drift
Overrange capability on all ranges
Flexible serial digital interface
On-chip output fault detection
PEC error checking
Asynchronous CLEAR function
Power supply range
AV
DD
: 12 V (± 10%) to 55 V (maximum)
Output loop compliance to AV
DD
− 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 AD5751 is a single-channel, low cost, precision, voltage/
current output driver with hardware or software programmable
output ranges. The software ranges are configured via an SPI-/
MICROWIRE™-compatible serial interface. The AD5751 targets
applications in PLC and industrial process control. The analog
input to the AD5751 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 three current
ranges: 0 mA to 20 mA, 0 mA to 24 mA, or 4 mA to 20 mA.
Voltage output is provided from a separate pin that can be
configured to provide 0 V to 5 V, 0 V to 10 V, and 0 V to 40 V
output ranges. An overrange is available on the voltage ranges.
Analog outputs are short-circuit and open-circuit protected and
can drive capacitive loads of 1 µF and 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 AV
DD
− 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
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 (0 V or tristate)
and an asynchronous CLEAR pin that sets the outputs to zero-
scale/midscale voltage output or 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 Device
Part Number
Description
AD5422 Single-channel, 16-bit, serial input current
source and voltage output DAC
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