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Analog Devices / Maxim Integrated MAX22530 Self-Powered Isolated ADCs

Analog Devices Inc. MAX22530 Self-Powered Isolated ADCs are galvanically isolated, 4-channel, multiplexed, 12-bit, analog-to-digital converters (ADC) in the MAXSafe™ family product line. An integrated, isolated DC-DC converter powers all field-side circuitry, enabling field-side diagnostics even when no input signal is present.

ADI MAX22530 ADCs continually digitize the input voltage on the field-side of an isolation barrier and transmit the data across the isolation barrier to the logic-side of the devices where the input voltage's magnitude is compared to programmable thresholds.

The devices are rated for operation at ambient temperatures between -40°C to +125°C. The MAX22530 is housed in a 16-pin wide SOIC package that provides 8mm of creepage and clearance and 5kVRMS isolation.

Features

  • Enable robust detection of multichannel analog/binary inputs
    • Withstands 3.5kVRMS isolation for 60s (VISO) for the SSOP package
    • Withstands 5kVRMS isolation for 60s (VISO) for the wide SOIC package
    • 5.5mm of creepage and clearance for 20-pin or 28-pin SSOP package
    • 8mm of creepage and clearance for 16-pin wide SOIC package
    • Group II CTI package material
  • Reduces BOM and board space through high integration
    • Field-side self-powered with integrated DC-DC supply
    • 12-bit, 20ksps Per-channel ADC
    • Programmable threshold comparators for each channel
    • Isolation for both data and DC-DC supply
    • Integrated 1.8V reference
  • Increase system “up time” and simplifies system design & maintenance
    • Field-side ADC functionality diagnostics
    • Field-side continuous power monitoring
    • Communication system self-diagnostics
  • Flexible control and interface
    • Programmable upper and lower input threshold enable programmable hysteresis
    • Comparator Output (COUT_) pins for fastest response
    • SPI Interface with CRC Option
    • Precision internal reference ±1% (typ)
    • -40°C to +125°C Operating temperature range

Applications

  • High-voltage binary input
  • Substation automation
  • Distribution automation
  • Process automation
  • Motion control

Associated Kit

Analog Devices / Maxim Integrated MAX2253x Evaluation Kit

Provides the hardware and software necessary to evaluate the MAX22530 isolated ADC w/field supply.

Learn Moreom Analog Devices / Maxim Integrated MAX2253x Evaluation Kit View Productsrelaterat till Analog Devices / Maxim Integrated MAX2253x Evaluation Kit

Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX22530 Self-Powered Isolated ADCs

Additional Resources

Publicerad: 2021-04-06 | Uppdaterad: 2023-04-13