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AD5749:  Industrial Current Out Driver, Single-Supply, 55 V Maximum Supply, Programmable Ranges

Product Details

Product Status:Recommended for New Designs

The AD5749 is a single channel, low cost, precision, current output driver with hardware or software programmable output ranges. The software ranges are configured via an SPI-/MICROWIRE™-compatible serial interface. The AD5749 targets applications in PLC and industrial process control. The analog input to the AD5749 is provided from a low voltage, single-supply digital-to-analog converter (DAC) and is internally conditioned to provide the desired output current/voltage range.

The output current range is programmable across two current ranges: 0 mA to 24 mA, or 4 mA to 20 mA. Current output is open-circuit protected and can drive inductive loads of 0.1 H. The device is specified to operate with a power supply range from 10.8 V to 55 V. Output loop compliance is 0 V to AVDD − 2.75 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 interface also features an optional PEC error checking feature using CRC-8 error checking, useful in industrial environments where data communication corruption can occur.

The device also includes a power-on reset function ensuring that the device powers up in a known state and an asynchron-ous CLEAR pin that sets the outputs to the low end of the selected current range.

An HW SELECT pin is used to configure the part for hardware or software mode on power-up.

  • Process control
  • Actuator control
  • PLCs


  • Current output ranges: 0 mA to 24 mA or 4 mA to 20 mA
    ±0.03% FSR typical total unadjusted error (TUE)
    ±5 ppm/°C typical output drift
    2% overrange
  • Flexible serial digital interface
  • On-chip output fault detection
  • PEC error checking
  • Asynchronous CLEAR function
  • Power supply range
    AVDD: 12 V (± 10%) to 55 V (maximum)
  • Output loop compliance to AVDD − 2.75 V
  • Temperature range: −40°C to +105°C
  • 32-lead, 5 mm × 5 mm LFCSP package

Functional Block Diagram

Of Note ...

For other voltage and current output products see AD5748/AD5750/AD5751/AD5750-1.


Title Content Type File Type
AD5749: Industrial Current Out Driver, Single-Supply, 55 V Maximum Supply, Programmable Ranges Data Sheet (Rev B, 10/2013) (pdf, 386 kB) Data Sheets PDF
Industrial ICs
Industrial ICs Solutions Bulletin, Volume 10, Issue 8
Solutions Bulletins HTML
Programmable Current and Voltage Output Drivers  (pdf, 1369 kB) Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

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Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Companion Products

Suggested Companion Products

Recommended External References for the AD5749

  • For low power, low cost, small package, we recommend the ADR392 or the ADR364.
Recommended Digital Isolators for the AD5749
  • For a 4-channel isolated interface in process control applications, we recommend the ADuM1400.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

AD5750 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
EVAL-AD5750EBZ Status: Production Evaluation Board $99.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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