4-20mA Loop Interface

Analog Devices 4-20mA loop interface driver solutions can be mated with our precisions digital-to-analog converters (DACs), while ADI integrated solutions combine both the DAC and driver in one chip to provide the required output directly from the digital domain. We also provide a line of HART-compatible modems to directly interface with our loop interface products, for enhanced communication. Our solutions address requirements for both loop and nonloop powered transmitters, and isolated and nonisolated analog I/O cards.
Product Selection Table

4-20mA Loop Interface

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SortOrderPart#Converter Primary Function# of ChannelsResolution
(bits)
DAC TypeCurrent Output RangesTUE Iout
(typ)
(%)
Vref SourceTemp RangeDAC FeaturesVs TypePrice (1000+)
($ US)
1AD5758 4-20 Loop Interface 1 16 Current Out, Current-Sinking, Voltage Out 0 to 20 mA, 0 to 24 mA, -20 to 20 mA, -24 to 24 mA, 4 to 20 mA 0.15 Int/Ext -40 to 115°C 4-20ma, DAC, Dynamic Power Control, Integrated ADC, LDAC Pin Dual, Single $6.54 (AD5758BCPZ-REEL)
2AD5755Reference Circuit Available 4-20 Loop Interface 4 16 Current Out, Voltage Out 0 to 20 mA, 0 to 24 mA, 4 to 20 mA 0.009 Int/Ext -40 to 105°C 4-20ma, CLR Pin, Double-Buffered, LDAC Pin, Read-Back, Reset/Clear, SDO Pin Dual $13.65 (AD5755ACPZ)
3AD5737 4-20 Loop Interface 4 12 Current Out 0 to 20 mA, 0 to 24 mA, 4 to 20 mA 0.022 Int/Ext -40 to 105°C 4-20ma, CLR Pin, Double-Buffered, LDAC Pin, Read-Back, Reset/Clear, SDO Pin Single $8.93 (AD5737ACPZ)
4AD5735 4-20 Loop Interface 4 12 Current Out, Voltage Out 0 to 20 mA, 0 to 24 mA, 4 to 20 mA 0.022 Int/Ext -40 to 105°C 4-20ma, CLR Pin, Double-Buffered, LDAC Pin, Read-Back, Reset/Clear, SDO Pin Dual $10.85 (AD5735ACPZ)
5AD5757 4-20 Loop Interface 4 16 Current Out 0 to 20 mA, 0 to 24 mA, 4 to 20 mA 0.009 Int/Ext -40 to 105°C 4-20ma, CLR Pin, Double-Buffered, LDAC Pin, Read-Back, Reset/Clear, SDO Pin Single $13.65 (AD5757ACPZ)
6AD5755-1Reference Circuit Available 4-20 Loop Interface 4 16 Current Out, Voltage Out 0 to 20 mA, 0 to 24 mA, 4 to 20 mA 0.009 Int/Ext -40 to 105°C 4-20ma, CLR Pin, Double-Buffered, LDAC Pin, Read-Back, Reset/Clear, SDO Pin Dual $15.88 (AD5755-1ACPZ)
7AD5421Reference Circuit Available 4-20 Loop Interface 1 16 Current Out 3.2 to 24 mA, 3.8 to 21 mA, 4 to 20 mA 0.064 Int/Ext -40 to 105°C 4-20ma, Double-Buffered, LDAC Pin, Loop Powered, On Chip Temp Sensor, Read-Back, SDO Pin Single $4.85 (AD5421ACPZ-REEL7)
8AD5422Reference Circuit Available 4-20 Loop Interface 1 16 Current Out, Voltage Out 0 to 20 mA, 0 to 24 mA, 4 to 20 mA 0.08 Int/Ext -40 to 105°C 4-20ma, Daisy Chain, LDAC Pin, Read-Back, Reset/Clear, SDO Pin Dual $5.77 (AD5422ACPZ-REEL)
9AD5420Reference Circuit Available 4-20 Loop Interface 1 16 Current Out 0 to 20 mA, 0 to 24 mA, 4 to 20 mA 0.08 Int/Ext -40 to 85°C 4-20ma, Daisy Chain, LDAC Pin, Read-Back, Reset/Clear, SDO Pin Single $5.10 (AD5420AREZ)
10AD5412 4-20 Loop Interface 1 12 Current Out, Voltage Out 0 to 20 mA, 0 to 24 mA, 4 to 20 mA 0.08 Int/Ext -40 to 105°C 4-20ma, Daisy Chain, LDAC Pin, Read-Back, Reset/Clear, SDO Pin Dual $4.51 (AD5412ACPZ-REEL)
11AD5410 4-20 Loop Interface 1 12 Current Out 0 to 20 mA, 0 to 24 mA, 4 to 20 mA 0.08 Int/Ext -40 to 85°C 4-20ma, Daisy Chain, LDAC Pin, Read-Back, Reset/Clear, SDO Pin Single $3.86 (AD5410ACPZ-REEL)
12AD421 4-20 Loop Interface 1 16 Current Out 4 to 20 mA- Int/Ext -40 to 85°C 4-20ma, Loop Powered Single $7.51 (AD421BRZ)
13AD693 4-20 Loop Interface 1- Current Out 0 to 20 mA, 4 to 20 mA 0.25- -40 to 85°C 4-20ma, Loop Powered Single $10.39 (AD693AQ)