Small And Accurate Isolated System-Monitoring Solution

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Features reduced solution size by 40 percent and increased accuracy by 50x that improves automated distribution and sub-station applications

Ways to save board space, increase channel density and improve the accuracy of monitoring voltage and current inputs are some requirements that automation system designers seek to fulfil for achieving precise and efficient system monitoring. 

Therefore Maxim Integrated Products has expanded its MAXSafe Technology line with the MAX22530, an isolated, field-side self-powered 12-bit system monitor. MAXSafe products combine integrated and isolated micropower DC-DC converters and communications lines. They are used to power up field circuits that are isolated from the control-side power source while simplifying diagnostics in signal monitoring applications.

Featuring four channels, the MAX22530 integrates five components into a single IC, thereby reducing solution size to 250mm2, which is 40 per cent smaller than the 420mm2 size for a discrete solution. 

The MAX22530 improves measurement accuracy by 50x (from +/- 50 per cent to just +/- 1 per cent) compared to the standard linear optocoupler isolation solutions made from discretes. The company’s proprietary integrated isolation technology combines a 12-bit ADC, a DC-DC converter, user-settable threshold detection levels and chip-level diagnostic capabilities for enabling 50x greater stability in current transfer ratio performance to achieve an ultra-stable sense resistor voltage.

Key Advantages

  • Design Simplicity: Integrates five ICs into one 12-bit ADC to ease system design
  • Reduced Size: Compact design reduces solution size 40 per cent and provides 43 per cent higher channel density
  • Higher Accuracy: 50 times greater accuracy

By achieving better measurement accuracy across four voltage and current inputs, the MAX22530 allows end-users to make better real-time decisions for improving system performance and enhancing productivity. 

“Our new MAX22530 isolated system monitoring solution simplifies the integration of this function in our customer systems and provides improved system monitoring accuracy of voltage and current inputs that result in better real-time decision-making to extend system productivity,” said Suravi Karmacharya, senior business manager for the Industrial and Healthcare Business Unit at Maxim Integrated. 

The MAX22530 and the MAX22530EVKIT# evaluation kit are now available at Maxim Integrated’s website and also from authorised distributors. 


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