The AD74416H is a quad-channel, software configurable, input and
output device for industrial control applications. The AD74416H
provides a wide range of use cases integrated on a single chip.
These use cases include analog input/output, digital input/output,
resistance temperature detector (RTD), and thermocouple measurement
capability.
The AD74416H also has an integrated highway addressable remote
transducer (HART) modem per channel. The input and output
communications and the HART communications for all four channels
are both supported using a single serial-peripheral interface
(SPI).
The AD74416H provides two address pins to support up to four
devices with a single SPI bus. The digital input/outputs can be
accessed by the SPI or the general-purpose input/output (GPIO)
pins to support higher speed data rates.
The AD74416H features a 16-bit digital-to-analog converter (DAC)
per channel and a single 24-bit, Σ-Δ analog-to-digital converter
(ADC). The AD74416H contains a high accuracy 2.5V on-chip
reference that can be used as the DAC and ADC reference.
The AD74416H supports adaptive power switching, which allows
the output stage to dynamically transition between two independent
power sources. This transitioning ability saves up to 40% overall
power consumption, thereby reducing dissipated heat in the module.
APPLICATIONS
- Industrial control systems
- Process control
- Factory automation
