AD5748 Industrial Current/Voltage Output Driver with Programmable Ranges

The AD5748 is a single-channel, low cost, precision, voltage/ current output driver with hardware or software programmable output ranges. The software ranges are configured via an SPI-/ MICROWIRE™-compatible serial interface. The AD5748 targets applications in PLC and industrial process control. The analog input to the AD5748 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 analog input range is 0 V to 4.096 V.   The output current range is programmable across two current ranges: 4 mA to 21 mA and 0 mA to 21 mA. Voltage output is provided from a separate pin that can be configured to provide 0 V to 5 V, 0 V to 10.5 V, or ±10.5 V output range. Analog outputs are short-circuit and open-circuit protected and can drive capacitive loads of 2 μF and inductive loads of 0.1 H. The device is specified to operate with a power supply range from ±12 V to ±24 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 (0 V or tristate), and a asynchronous CLEAR pin that sets the outputs to zero scale/midscale voltage output or 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. Note that the plots in the Typical Performance Characteristics section of this data sheet contain information on the standard ranges, as released in the AD5750/AD5750-1 data sheet. Although the overranges have been tested, new plots were not generated and substitution data was used for plotting purposes. Applications Process control Actuator control PLCs

The output current range is programmable across two current ranges: 4 mA to 21 mA and 0 mA to 21 mA.

Voltage output is provided from a separate pin that can be configured to provide 0 V to 5 V, 0 V to 10.5 V, or ±10.5 V output range.

Analog outputs are short-circuit and open-circuit protected and can drive capacitive loads of 2 μF and inductive loads of 0.1 H.

The device is specified to operate with a power supply range from ±12 V to ±24 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 (0 V or tristate), and a asynchronous CLEAR pin that sets the outputs to zero scale/midscale voltage output or 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.

Note that the plots in the Typical Performance Characteristics section of this data sheet contain information on the standard ranges, as released in the AD5750/AD5750-1 data sheet. Although the overranges have been tested, new plots were not generated and substitution data was used for plotting purposes.

Applications
  • Process control
  • Actuator control
  • PLCs
Features and Benefits
  • Current output ranges:
    4 mA to 21 mA, 0 mA to 21 mA
    ±0.15% FSR total unadjusted error (TUE)
    ±5 ppm/°C FSR typical output drift
  • Voltage output ranges: 0 V to 5 V,
    0 V to 10.5 V, ±10.5 V
    ±0.05% FSR total unadjusted error (TUE)
    ±3 ppm/°C FSR output drift
  • Flexible serial digital interface
  • On-chip output fault detection
  • PEC error checking
  • Asynchronous CLEAR function
  • Flexible power-up condition to 0 V or tristate
  • Power supply range
    AVDD: +12 V (± 10%) to +24 V (± 10%)
    AVSS: −12 V (± 10%) to −24 V (± 10%)
  • Output loop compliance to
    AVDD − 2.75 V
  • Temperature range: −40°C to +105°C
  • 32-lead, 5 mm × 5 mm LFCSP package
Interface & Isolation
Amplifiers
Data Sheets
Documentnote
AD5748: Industrial Current/Voltage Output Driver with Programmable Ranges Data Sheet (Rev. B)PDF 628 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD5748ACPZ Production32 ld LFCSP (5x5mm) w/3.1mm exposed padOTH 490-40 to 105C2.622.15Y
AD5748ACPZ-RL7 Production32 ld LFCSP (5x5mm) w/3.1mm exposed padREEL 1500-40 to 105C02.15Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-AD5750EBZEvaluation Board99Y
AD5748:工业电流/电压输出驱动器,输出范围可编程 (Rev. A) ad5748
AD5748: Industrial Current/Voltage Output Driver with Programmable Ranges Data Sheet (Rev. B) ad5748