DAC161P997

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design DAC161P997 SNAS515G – JULY 2011 – REVISED DECEMBER 2014 DAC161P997 Single-Wire 16-bit DAC for 4- to 20-mA Loops 1 Features 1 16-Bit Linearity Single-Wire Interface (SWIF), with Handshake Digital Data Transmission (No Loss of Fidelity) Pin Programmable Power-Up Condition Self Adjusting to Input Data Rate Loop Error Detection and Rreporting Programmable Output Current Error Level No External Precision Components Simple Interface to HART Modulator Small Package: WQFN-16 (4 x 4 mm, 0.5 mm Pitch) Key Specifications – Output Current TempCo: 29 ppmFS/°C (Max) – Long-Term Output Current Drift: 90 ppmFS (Typ) – INL: 3.3/−2.1 µA(Max) – Total Supply Current: 190 µA (Max) 2 Application Two-Wire, 4-20 mA Current Loop Transmitter Industrial Process Control Actuator Control Factory Automation Building Automation Precision Instruments Data Acquisition Systems Test Systems 3 Description The DAC161P997 is a 16-bit ∑Δ digital-to-analog converter (DAC) for transmitting an analog output current over an industry standard 4-20 mA current loop. It offers 16-bit accuracy with a low output current temperature coefficient (29 ppm/°C) and excellent long-term output current drift (90 ppmFS) while consuming less than 190 µA. The data link to the DAC161P997 is a Single Wire Interface (SWIF) which allows sensor data to be transferred in digital format over an iso...