Analog Devices / Maxim Integrated MAX22531 4-Channel 12-bit Isolated ADCs

Analog Devices MAX22531 4-Channel 12-bit Isolated ADCs are galvanically isolated analog-to-digital converters. The Analog Devices MAX22531 is part of the MAXSafe™ family product line. The ADCs are an integrated, isolated, DC-DC converter that powers all field-side circuitry, and this allows field-side diagnostics even when no input signal is present.

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 “uptime” and simplify system design and maintenance
- Field-side ADC functionality diagnostics
- Field-side continuous power monitoring
- Communication system self-diagnostics
Flexible control and interface
- Programmable upper and lower input thresholds enable programmable hysteresis
- Comparator output (COUT_) pins for fast 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

Analog Devices / Maxim Integrated MAX22531 4-Channel 12-bit Isolated ADCs

Features

Applications

Four-Channel Isolated ADC

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