Completely Isolated 4-Channel Multiplexed HART Analog Output Circuit
Reference Design using part AD5755-1ACPZ by Analog Devices
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Associated Documents
For End Products
- Distributed Control System
- Environmental
- Industrial Programmable Logic Controllers (PLCs)
Description
- Circuit combines the AD5755-1 (quad channel voltage and current output DAC with dynamic power control) and the AD5700-1 HART modem, to give a completely isolated multiplexed HART1 analog output solution. Power can be provided either from the transformer isolated power circuit provided on the board (±13 V and +5.2 V outputs, dependent on the load current) or from external power supplies connected to terminal blocks. Circuit is suitable for use in programmable logic controllers (PLCs) and distributed control system (DCS) modules that require multiple HART-compatible 4 mA to 20 mA current outputs, along with unipolar or bipolar voltage outputs. External transient protection circuitry is also included, which is important for applications located in harsh industrial environments
Key Features
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DAC Resolution16 Bit
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Number of Channels4CH
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ADUM3482BRSZ-RL7 | Analog Devices | Digital Isolators | Digital Isolator CMOS 4-CH 25Mbps 20-Pin SSOP T/R | Buy | |
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ADUM3210WARZ-RL7 | Analog Devices | Digital Isolators | Digital Isolator CMOS 2-CH 1Mbps Automotive AEC-Q100 8-Pin SOIC N T/R | Buy | |
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ADUM3210ARZ-RL7 | Analog Devices | Digital Isolators | Digital Isolator CMOS 2-CH 1Mbps 8-Pin SOIC N T/R | Buy | |
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ADUM3482ARSZ-RL7 | Analog Devices | Digital Isolators | Digital Isolator CMOS 4-CH 1Mbps 20-Pin SSOP T/R | Buy | |