HART Modem

HART (Highway Addressable Remote Transducer) is one of the leading communication protocols worldwide within industrial applications, with the majority of smart field devices and intelligent process measurement and control systems utilising this communication technology. HART is a global standard and a bi-directional communication Protocol for sending and receiving digital information across analog, 4 to 20mA transmission lines. HART technology simultaneously transmits digital information with the 4-20mA signal and is an accompaniment to many of ADIs tailored industrial 4 to 20mA converters, like the AD5755, AD5422 or AD5421 families. HART technology is proven in practice, easy to use and very reliable. It is not a substitute for hardwired 4 to 20mA communication, but rather a complementary mode of communication which provides additional information in the form of remote diagnostics and system troubleshooting where it can be used to enhance the SIL (Safety Integrity Level) rating of a system. Analog Devices offers a family of HART Modems and complementary converters which can be used together to realise a robust, accurate and HART Foundation registered solution.

Circuit from the lab Engineered. Tested. Ready to Integrate.


HART Modems

Part# HART CompliantInternal OscillatorOscillator Precision (%)Current ConsumptionIntegrated Rcv FilteringWidest Temp Range (°C)InterfaceUS Price 1000-4999
AD5700Reference Circuit AvailableYesNo--Yes-40 to +125UART $3.75
AD5700-1Reference Circuit AvailableYesYes0.5%-Yes-40 to +125UART $4.25
AD5737Yes-----40 to +105- $8.93
AD5757Yes-----40 to +105- $13.65
AD5421Reference Circuit AvailableYes-----40 to +105- $4.85
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Industrial Solution DACs

Part# # DAC OutputsResolution (Bits)DAC TypeCurrent_Output RangesCurrent Output TUE (%FS)Current Drift (ppm/°C)I Out Settling Time (µs)Ref Int/ExtPositive Supply (min)Positive Supply (max)Vout (V p-p)minVout (V p-p)maxDAC settling timeWidest Temp Range (°C)US Price 1000-4999
AD5735412Current Out, I or V Out, Voltage Out0-20, 0-24, 4-200.1%5ppm/C15µsInt/Ext9V33V5V p-p20V p-p11µs-40 to +105 $10.85
AD5737412Current Out4-20---Int/Ext9V33V--15µs-40 to +105 $8.93
AD5755Reference Circuit Available416Current Out, I or V Out, Voltage Out0-20, 0-24, 4-200.05%5ppm/C15µsInt/Ext9V33V5V p-p20V p-p11µs-40 to +105 $13.65
AD5755-1416Current Out, I or V Out, Voltage Out0-20, 0-24, 4-200.05%5ppm/C18µsInt/Ext9V33V5V p-p20V p-p11µs-40 to +105 $15.88
AD5757416Current Out, Current-Source DAC0-20, 0-24, 4-200.05%5ppm/C15µsInt/Ext9V33V--15µs-40 to +105 $13.65
AD5421Reference Circuit Available116Current-Source DAC3.2-24, 3.8-21, 4-200.05%3ppm/C50µsExt5.5V52V--50µs-40 to +105 $4.85
AD5410Reference Circuit Available112Current-Source DAC0-20, 0-24, 4-200.1%7ppm/C10µsExt10.8V60V----40 to +85 $3.75
AD5412Reference Circuit Available112Current-Source DAC, Voltage Out0-20, 0-24, 4-200.1%7ppm/C10µsInt/Ext10.8V40V5V p-p20V p-p32µs-40 to +85 $4.38
AD5420Reference Circuit Available116Current-Source DAC0-20, 0-24, 4-200.6%7ppm/C10µsInt/Ext10.8V60V----40 to +85 $4.95
AD5422Reference Circuit Available116Current-Source DAC, Voltage Out0-20, 0-24, 4-206%7ppm/C10µsInt/Ext10.8V40V5V p-p20V p-p18µs-40 to +85 $5.6
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4-20 mA Drivers

Part# ChannelsInput Voltage RangeVoltage Output RangesSettling Time (µs)Drift (ppm/°C)Current Output RangesCurrent Drift (ppm/°C)Input FormatVoltage Supply (min)Voltage Supply (max)Operating Temp RangeVREFFeaturesCurrent Output TUE (%FS)Output Voltage (TUE) (%)US Price 1000-4999
AD574910 to 4.096 V---0 to 24 mA, 4 to 20 mA5ppm/CSPI12V55V-40 to +1054.096VFault Detection, PEC, ASYN CLR0.15%- $1.8
AD574810 to 4.096 V+/- 10 V, 0 to 10 V, 0 to 5 V7µs3ppm/C0 to 20 mA, 4 to 20 mA5ppm/CSPI12V48V-40 to +1054.096V-0.15%0.05% $2.15
AD5751Reference Circuit Available10 to 4.096 V0 to 10 V, 0 to 40 V, 0 to 5 V7µs3ppm/C0 to 20 mA, 0 to 24 mA, 4 to 20 mA5ppm/CSPI10.8V55V-40 to +1054.096VOutput Fault Detection, PEC, ASYN CLR, 0 V or Tristate0.08%0.05% $3.01
AD5750Reference Circuit Available10 to 4.096 V+/- 10 V, +/- 5 V, 0 to 10 V, 0 to 5 V7µs3ppm/C+/- 20 mA, +/- 24 mA, 0 to 20 mA, 0 to 24 mA, 4 to 20 mA5ppm/CSPI12V24V-40 to +1054.096VOutput Fault Detection, PEC, ASYNC CLR, 0 V or Tristate0.03%0.02% $2.45
AD5750-1Reference Circuit Available10 to 2.5 V+/- 10 V, +/- 5 V, 0 to 10 V, 0 to 5 V7µs3ppm/C+/- 20 mA, +/- 24 mA, 0 to 20 mA, 0 to 24 mA, 4 to 20 mA5ppm/CSPI12V24V-40 to +1051.25VOutput Fault Detection, PEC, Asyn CLR, 0 V or Tristate0.03%0.02% $2.45
AD5410Reference Circuit Available----26ppm/C-7ppm/CSPI10.8V60V-40 to +85--0.1%- $3.75
AD5420Reference Circuit Available----38ppm/C-7ppm/CDigital10V60V-40 to +85--0.6%- $4.95
AD421----50ppm/C--Digital2.95V5.05V-40 to +85---- $6.83
AD420---2.5ms20ppm/C--Digital12V32V-40 to +85---- $11.58
AD693-------Analog---40 to +85---- $8.31
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Video: AD5700: Low Power HART Modem

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