DAC161P997CISQX/NOPB

数模转换器- DAC Single-Wire 16-bit DAC for 4-20mA Loops 16-WQFN -40 to 105

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/°Cmax

■ Long-Term Output Current Drift 90 ppmFStyp

■ INL +3.3/−2.1 µAmax

■ Total Supply Current 190 µAmax

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