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Home » NEWEST Products » New by Manufacturer » Maxim Integrated » MAXREFDES16 Novato Reference Design - Maxim
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Maxim MAXREFDES16 Novato Reference Design

Maxim MAXREFDES16 Novato Reference Design

Maxim's MAXREFDES16 Novato Reference Design is a 16-bit, high-accuracy, loop-powered temperature transducer that transmits temperature information from a remote object to the central control unit over a 4-20mA current loop and using the highway addressable remote transducer (HART) communication protocol. Temperature is one of the most widely measured parameters in industrial process control and automation. This reference design provides a complete signal-chain solution that works with any type of RTDs, from PT100 to PT1000. The Novato PT100 2-wire, loop-powered smart temperature transmitter guarantees a low-power, easy-to-use, reliable solution of temperature measurement from -200°C to +850°C with accuracy better than 0.1% or 1.0°C, whichever is more accurate, over the entire operating range.

  • 2-, 3-, or 4-Wire RTD Sensor Input
  • -200°C to +850°C Measured Temperature Range
  • -40°C to +85°C Operating Range
  • 0.03°C Temperature Resolution
  • < 0.05% Span Error or ±0.2°C at +23°C (Whichever is Greater)
  • < 0.1% Span Error or ±1.0°C Over Operating Range
  • 12V to 40V Supply Voltage Range
  • 200µA RTD Excitation Current
  • Auto Compensation of Wire Resistance for 3-Wire RT

  • 4-20mA Current Loop Output
  • 10Ω to 1kΩ Loop Load
    • Highway Addressable Remote Transducer (HART) Communication Protocol Requires Minimum Load of 230Ω
  • Sensor Burnout Detection
    • Namur Down Scale: < 3.2mA
    • Namur Up Scale: Programmable from 20.5mA to > 24mA
  • Loop Current Limiter: 30mA ±5mA
  • HART Protocol Compatible


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  • Maxim Integrated