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Home » NEWEST Products » New by Manufacturer » Maxim Integrated » MAXREFDES15 Monterey Reference Design - Maxim
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Maxim MAXREFDES15 Monterey Reference Design

Maxim MAXREFDES15 Monterey Reference Design

Maxim MAXREFDES15 Monterey Reference Design delivers an ultra-low power, high accuracy 4-20mA 2-wire current loop sensor evaluation board. The 4-20mA current loop is widely used as an analog communication interface in industrial applications for transmitting the data from remote sensors to a programmable logic controller (PLC) in a central control center over a twisted pair cable. Here, 4mA represents the lowest temperature value, and 20mA represents the highest measured temperature. There are four main advantages of the current loop. First, the accuracy of the signal is not affected by the voltage drop in the loop, as long as the power-supply voltage is greater than the total voltage drop across the loop. Secondly, it uses two wires for power as well as data communication over the entire loop. Thirdly, it is more immune to noise. Lastly, it is offered at a low cost and easy installation.

Features
  • Ultra-Low Power
  • -100°C to +100°C Interval
  • High Accuracy
  • High Precision
  • Simple Power Supply and Wide Input Range
  • System Current Consumption < 2.1mA
  • Resistance Temperature Detector (RTD) PT1000
  • Resolution 10,000 Counts or 0.1%
  • Accuracy 0.25%
Equipment Required
  • 10V to 40V power supply
  • High-accuracy current meter
  • RTD PT1000 sensor or a temperature calibrator
Block Diagram
Block Diagram
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