Software Configurable Low-Power AO-AFE

The NAFE33350 is a software-configurable universal output (AO) analog front end (AFE) that meets high-precision control requirements of industrial-grade applications. The AO-AFE integrates the following components.

* A precision 18-bit digital-to-analog converter (DAC)

* A low-drift voltage reference

* Low-offset-drift buffers

* A 65 V input-protection circuit for electromagnetic compatibility (EMC) and miswiring scenarios

For open circuit and short-circuit detection, the output stage includes built-in diagnostic and protection circuitry. The AO AFE is suitable for programmable logic controllers (PLC), analog output modules, isolated industrial control systems and process control.