GENERAL DESCRIPTION

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-toanalog converter (DAC) and is internally conditioned to provide the desired output current/voltage range.

FEATURES

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

APPLICATIONS

Process control

Actuator control

PLCs