AD4110-1 Datasheet | Analog Devices

FEATURES GENERAL DESCRIPTION 2 software programmable input terminals The AD4110-1 is a plete, single-channel, universal input Current up to ±20 m A analog-to-digital front end for industrial process control systems Voltage up to ±10 V where sensor type flexibility is required. 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 k SPS 16 noise free bits at 62 k SPS 18 noise free bits at 2.5 k SPS 20 noise free bits at 50 SPS/60 SPS Simultaneous 50 Hz and 60 Hz rejection Serial interface for configuration and diagnostics The high voltage input is fully software configurable for current or voltage signals and allows direct interface to all standard industrial analog signal sources such as ±20 m A, ±4 m A to ±20 m A, ±10 V, and all thermocouple types. Field power can be supplied for loop powered current output sensors. A range of excitation current sources for resistance temperature detector (RTD) sensors and other resistive sensors are included. The integrated, fully differential programmable gain amplifier (PGA) offers 16 gain settings from 0.2 to 24. The high voltage input can be programmed to power up in either voltage mode or current mode. When programmed to current mode, the unique input circuit architecture provides a path for the loop current, even in the absence of the system module power supply. 4-wire interface patible 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 APPLICATIONS The AD4110-1 provides internal, front-end diagnostic functions to indicate overvoltage, undervoltage, open wire, overcurrent, and overtemperature...