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AD5750-2:  Industrial Current/Voltage Output Driver with Programmable Ranges

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The AD5750/AD5750-1/AD5750-2 are single-channel, low cost, precision voltage/current output drivers with hardware- or software-programmable output ranges. The software ranges are configured via an SPI-/MICROWIRE™-compatible serial interface. The AD5750/AD5750-1/AD5750-2 target applications in PLC and industrial process control. The analog input to the AD5750/ AD5750-1/AD5750-2 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. Analog input ranges available are 0 V to 2.5 V (AD5750-1/AD5750-2) or 0 V to 4.096 V (AD5750).

The output current range is programmable across five current ranges: 4 mA to 20 mA, 0 mA to 20 mA, 0 mA to 24 mA, ±20 mA, and ±24 mA. An overrange of 2% is available on the unipolar current ranges.

Voltage output is provided from a separate pin that can be configured to provide 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V output ranges. An overrange of 20% is available on the voltage ranges.

Analog outputs are short-circuit and open-circuit protected and can drive capacitive loads of 1 μF and inductive loads of 0.1 H.

The devices are 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 operate in 3-wire mode to minimize the digital isolation required in isolated applications. The interface also features an optional PEC feature using CRC-8 error checking, useful in industrial environments where data communication corruption can occur.

The devices also include a power-on-reset function, ensuring that the devices power up in a known state (0 V or tristate), and an asynchronous CLEAR pin that sets the outputs to a zero scale/mid-scale voltage output or the low end of the selected current range.

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

APPLICATIONS

  • Process controls
  • Actuator controls
  • PLCs

ОСОБЕННОСТИ И ПРЕИМУЩЕСТВА

  • Current output ranges:
    4 mA to 20 mA, 0 mA to 20 mA, 0 mA to 24 mA,
    ±20 mA, and ±24 mA
      ±0.03% full-scale range (FSR) total unadjusted error (TUE)
      ±5 ppm/°C typical output drift
  • Voltage output ranges:
    0 V to 5 V, 0 V to 10 V,
    ±5 V, and ±10 V with 20% overrange
      ±0.02% FSR TUE
      ±3 ppm/°C typical output drift
  • Flexible serial digital interface
  • On-chip output fault detection
  • Packet error checking (PEC)
  • 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%)
  • See data sheet for additional features

Functional Block Diagram for AD5750-2

Оценочные наборы, обозначения компонентов и шаблоны посадочных мест на ПП

Обозначения и посадочные места— Analog Devices предлагает библиотеку обозначений для принципиальных схем и шаблонов посадочных мест для разводки плат, совместимую с большинством САПР.

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Сопутствующие компоненты

Suggested Companion Products


Recommended External References for the AD5750-2

  • For low power, low cost, mid-end systems, we recommend the ADR392 or the ADR364.
  • For low noise, high accuracy, high-end systems, we recommend the ADR434.
Recommended D/A Converters for the AD5750-2
  • For low power, single supply, small package, we recommend the AD5660 family or the AD5060 family of 0V to 4.096V output DAC's.
Recommended Digital Isolators for the AD5750-2
  • 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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SampleОбразцы / Покупка

Цены, исполнение ИМС, наличие на складе

AD5750-2 Model Options
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Приведенные цены действительны в США и указаны только для примерного бюджетного рассчета. Цены указаны в долларах США (за штуку в указанном размере партии) и могут быть изменены. Цены в других регионах могут отличаться в зависимости от местных пошлин, налогов, сборов и курсов валют. Для уточнения стоимости обращайтесь в местные офисы продаж Analog Devices, или к официальным дистрибьюторам. Цены на оценочные платы и наборы указаны за штуку независимо от количества.

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