DAC161P997CISQ/NOPB Datasheet PDF - TI

●General 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 (29ppm/°C) and excellent long-term output current drift (90 ppmFS) while

●consuming less than 190µA.

●Features

●■ 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 reporting

●■ Programmable output current error level

●■ No external precision components

●■ Simple interface to HART modulator

●■ Small package: LLP-16 (4x4 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)

●Applications

●• Two-wire, 4-20 mA current loop transmitter

●• Industrial Process Control

●• Actuator control

●• Factory Automation

●• Building Automation

●• Precision Instruments

●• Data Acquisition Systems

●• Test Systems