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
Four-Channel Isolated ADC
Publicado: 2022-01-06
| Actualizado: 2023-04-17