16-Bit Isolated Industrial Voltage and Current Output DAC with Isolated DC-to-DC Supplies (CN0233)

The circuit in Figure 1 provides 16-bit fully isolated ±10 V and 4 mA-to-20 mA outputs suitable for programmable logic controllers (PLCs) and distributed control systems (DCSs).

The circuit uses digital isolation, as well as PWM-controlled power regulation circuitry along with associated feedback isolation. External transformers are used to transfer power across the isolation barrier, and the entire circuit operates on a single +5 V supply located on the primary side. This solution is superior to isolated power modules, which are often bulky and may provide poor output regulation.

Digital isolators are superior to opto-isolators especially when multichannel isolation is needed. The integrated design isolates the circuit from the local system controller to protect against ground loops and also to ensure robustness against external events often encountered in harsh industrial environments.


Figure 1. Isolated 16-Bit Current and Voltage Output DAC with Isolated Power Supplies

Возможности

  • 16-bit Industrial Output DAC
  • Isolate Power and Signals
  • Compatible with В±10V and 4-20mA Control Systems

Файлы

16-Bit Isolated Industrial Voltage and Current Output DAC with Isolated DC-to-DC Supplies  CN0233

Используемые компоненты

Производитель: Analog Devices Inc.
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Производитель
Описание Корпус/
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Цена, руб. Наличие
ADUM3471ARSZ
ADUM3471ARSZ
Analog Devices Inc.
Арт.: 613669 ИНФО PDF RD
Доступно: 285 шт.
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PWM Controller and Transformer Driver with Quad-Channel Isolators 3/1
ADUM3471ARSZ
285 шт.
(под заказ)
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ADUM3471CRSZ
ADUM3471CRSZ
Analog Devices Inc.
Арт.: 613670 ИНФО PDF RD
Доступно: 1635 шт.
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PWM Controller and Transformer Driver with Quad-Channel Isolators 3/1
ADUM3471CRSZ
1635 шт.
(под заказ)
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ADUM3471WCRSZ
Analog Devices Inc.
Арт.: 2391555 RD
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ADUM3471WCRSZ
-
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ADUM3471WARSZ
Analog Devices Inc.
Арт.: 2391574 RD
Доступно: 66 шт.
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ADUM3471WARSZ
66 шт.
(под заказ)
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ADUM3471ARSZ-RL7
Analog Devices Inc.
Арт.: 2560008 ИНФО RD
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предложений
PWM Controller and Transformer Driver with Quad-Channel Isolators 3/1
ADUM3471ARSZ-RL7
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предложений