AD5421 PDF Datasheet


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Description

This is 4mA to 20mA DAC. Data Sheet 16-Bit, Serial Input, Loop-Powered, 4 mA to 20 mA DAC AD5421 FEATURES GENERAL DESCRIPTION 16-bit resolution and monotonicity Pin selectable NAMUR-compliant ranges 4 mA to 20 mA 3.8 mA to 21 mA 3.2 mA to 24 mA NAMUR-compliant alarm currents Downscale alarm current = 3.2 mA Upscale alarm current = 22.8 mA, 24 mA Total unadjusted error (TUE): 0.05% maximum INL error: 0.0035% FSR maximum Output TC: 3 ppm, °C typical Quiescent current: 300 A maximum Flexible SPI-compatible serial digital interface with Schmitt triggered inputs On-chip fault alerts via FAULT pin or alarm current Automatic readback of fault register on each write cycle Slew rate control function Gain and offset adjust registers On-chip reference TC: 4 ppm, °C maximum Selectable regulated voltage output Loop voltage range: 5.5 V to 52 V Temperature range: 40°C to +105°C TSSOP and LFCSP packages APPLICATIONS Industrial process control 4 mA to 20 mA loop-powered transmitters Smart transmitters HART network conne.