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AD5422 数据表(PDF) 1 Page - Analog Devices

部件名 AD5422
功能描述  Single Channel, 16-Bit, Serial Input, Current Source & Voltage Output DAC
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD5422 数据表(HTML) 1 Page - Analog Devices

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Single Channel, 16-Bit, Serial Input,
Current Source & Voltage Output DAC
Preliminary Technical Data
AD5422
Rev. PrE
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
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
©2007 Analog Devices, Inc. All rights reserved.
FEATURES
16-Bit Resolution and Monotonicity
Current Output Ranges: 4–20mA, 0–20mA or 0–24mA
0.1% typ Total Unadjusted Error (TUE)
5ppm/°C Output Drift
Voltage Output Ranges: 0-5V, 0-10V, ±5V, ±10V,
10% over-range
0.05% Total Unadjusted Error (TUE)
3ppm/°C Output Drift
Flexible Serial Digital Interface
On-Chip Output Fault Detection
On-Chip Reference (10 ppm/°C Max)
Asynchronous CLEAR Function
Power Supply Range
AVDD : 10.8V to 40 V
AVSS : -26.4V to -3V/0V
Output Loop Compliance to AVDD – 2.5 V
Temperature Range: -40°C to +85°C
TSSOP and LFCSP Packages
APPLICATIONS
Process Control
Actuator Control
PLC
GENERAL DESCRIPTION
The AD5422 is a low-cost, precision, fully integrated 16-bit
converter offering a programmable current source and
programmable voltage output designed to meet the
requirements of industrial process control applications.
The output current range is programmable to 4mA to 20 mA,
0mA to 20mA or an overrange function of 0mA to 24mA.
Voltage output is provided from a separate pin that can be
configured to provide 0V to 5V, 0V to 10V,
±5V or ±10V
output ranges, an over-range of 10% is available on all ranges.
Analog outputs are short and open circuit protected and can
drive capacitive loads of 1uF and inductive loads of 1H.
The device is specified to operate with a power supply range
from 10.8 V to 40 V. Output loop compliance is 0 V to AVDD
2.5 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 device also includes a power-on-reset function ensuring
that the device powers up in a known state and an
asynchronous CLEAR pin which sets the outputs to zero-scale /
mid-scale voltage output or the low end of the selected current
range.
The total output error is typically
±0.1% in current mode and
±0.05% in voltage mode.
Table 1. Related Devices
Part Number
Description
AD5412
Single Channel, 12-Bit, Serial
Input Current Source and
Voltage Output DAC
AD5420
Single Channel, 16-Bit, Serial
Input Current Source DAC
AD5410
Single Channel, 12-Bit, Serial
Input Current Source DAC


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