GENERAL DESCRIPTION

The AD421 is a complete, loop-powered, digital to 4 mA to 20 mA converter, designed to meet the needs of smart transmitter manufacturers in the Industrial Control industry. It provides a high precision, fully integrated, low cost solution in a compact 16-lead package. The AD421 is ideal for extending the resolution of smart 4 mA to 20 mA transmitters at very low cost.

FEATURES

4 mA to 20 mA Current Output

HART® Compatible

16-Bit Resolution and Monotonicity

0.01 Integral Nonlinearity

5 V or 3 V Regulator Output

2.5 V and 1.25 V Precision Reference

750 A Quiescent Current max

Programmable Alarm Current Capability

Flexible High Speed Serial Interface

16-Lead SOIC and PDIP Packages

AD421BR属于集成电路（IC） > ADC/DAC - 特殊用途。亚德诺半导体技术有限公司制造生产的AD421BRADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。