Analog’s New Converter Meets Industrial ADC Standards

-Manas

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  • Analog Device has introduced a new ADC that meets the electric standards for industrial converters
  • The AD4110 is equipped with internal, front-end diagnostic functions that include parametric overprotection circuits

An industrial process requires an analogue to digital converter(ADC) to improve factors like low latency, low power consumption and higher accuracy. Achieving all these requirements in a single device can be difficult.

Depending on the ADC architecture used, the latency, accuracy, and resolution can vary. The process node and the supply voltage can also affect. There are numerous architectures available with various advantages and disadvantages depending on your application requirement.

Integrated industrial process control systems

Analog Device has introduced a new ADC that meets the electric standards for industrial converters. The AD4110 is an integrated front end system for industrial process control systems. The chip has a single channel input. It includes a programmable gain amplifier that has 16 different gain settings. It ranges from 0.2 up to 24. The ADC runs on a high-resolution 24-bit sigma-delta architecture. It also features noise rejection feature for 50 Hz and 60 Hz. The input is configurable to accept a variety of current and voltage inputs.

Interfaced with resistance temperature detectors

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This unit can be used in processes where sensor type flexibility is required. The high voltage input is fully software configurable for current or voltage signals. It allows direct interface to all standard industrial analogue signal sources such as ±20 mA, ±4 mA to ±20 mA and ±10 V.

Field power can be supplied for loop-powered current output sensors. It includes current sources for resistance temperature detectors (RTD) other resistive sensors. The integrated and fully differential programmable gain amplifier (PGA) offers 16 gain settings from 0.2 up to 24.

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The voltage input for the device can be programmed to power up in either voltage mode or current mode. When programmed to the current mode, the unique input circuit architecture provides a path for the loop current. It works even in the absence of the system module power supply.

Have Over voltage, current and temperature protections

The AD4110 is also equipped with internal, front-end diagnostic functions. These diagnostic functions help to indicate overvoltage, under-voltage, open wire, overcurrent, and over-temperature conditions. The high voltage input is protected against temperature, voltage and current overflow.

As this ADC solution targets industrial applications, this device is built and fabricated in a way to fulfil the requirements of industrial electric standards. The device shows feasibility with solutions such as process control and industrial automation, remote and distributed control systems, instrumentation and measurement and sensor data acquisitions.


 

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