Description

Universal Input Analog Front End with 24-Bit ADC for Industrial Process Control Systems Features: 2 software programmable input terminals Current up to ±20 mA Voltage up to ±10 V Thermocouple RTD Replaces existing 3-terminal solutions Field power supply for loop powered current sensors HV input overvoltage protected up to ±30 V Internal current sense resistor Option to use external current sense resistor Current limited input even with no power supply Diagnostic functions for overrange and open wire detect Fast and flexible output data rates: 5 SPS to 125 kSPS 16 noise free bits at 62 kSPS 18 noise free bits at 2.5 kSPS 20 noise free bits at 50 SPS/60 SPS Simultaneous 50 Hz and 60 Hz rejection Serial interface for configuration and diagnostics 4-wire interface compatible with SPI®, QSPI™, MICROWIRE®, and DSP Power supply: ±12 V to ±20 V, +5 V Operating temperature: −40°C to +105°C Package: 40-lead, 6 mm × 6 mm LFCSP