AD5421BREZ-REEL7

AD5421BREZ-REEL7 is an Analog Devices 16-bit digital-to-analog converter in a 28-lead TSSOP_EP package, built to drive 4 mA to 20 mA current loops (with NAMUR NE43 fault ranges of 3.8 mA to 21 mA or 3.2 mA to 24 mA selectable) from a loop supply of 5.5 V to 52 V. Total unadjusted error is 0.05% maximum, INL is 0.0035% of FSR maximum, the SPI interface feeds the output stage directly, and the maximum 300 µA quiescent draw leaves loop-current budget for the sensor front end — the standard transmit engine for two-wire field instruments. Selection advice: the BREZ code is the exposed-pad TSSOP package — do not substitute the LFCSP variant used elsewhere in this family, and note the −40 to +105 °C range of this code when the transmitter sits in a hot enclosure. Analog Devices lists this code as PRODUCTION. Parameters verified against Analog Devices documentation.