AD5750-1ACPZ-REEL7

工业电流/电压输出驱动器 Industrial Current/Voltage Output Driver

Product Details

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 or 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 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 an 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.

**Applications**

* Process control

* Actuator control

* PLCs

### Features and Benefits

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Current output ranges:

4 mA to 20 mA, 0 mA to 20 mA or 0 mA to 24 mA, ±20 mA, and ±24 mA

±0.03% FSR total unadjusted error TUE

±5 ppm/°C typical output drift

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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

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Flexible serial digital interface

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On-chip output fault detection

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PEC error checking

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Asynchronous CLEAR function

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Flexible power-up condition to 0 V or tristate

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Power supply range

AVDD: +12 V ± 10% to +24 V ± 10%

AVSS: −12 V ± 10% to −24 V ± 10%

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Output loop compliance to AVDD − 2.75 V

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Temperature range: −40°C to +105°C

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32-lead, 5 mm × 5 mm LFCSP package