MAX71071, MAX71071H
Dual-Channel Isolated Metrology ADCs
Eliminate Current Transformers with Isolated ADC
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OVERVIEW
Description
The MAX71071/MAX71071H are dual-channel isolated
analog-to-digital converters (ADCs) for use with a
compatible MAX71xxx host. The device provides current
and voltage measurements to the host while the host
provides control, command, and power to the
MAX71071/MAX71071H. A pulse transformer provides
the isolated data, clock, and power path between the
device and host, eliminating the need for additional
isolation components in the measurement subsystem.
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MAX71071, MAX71071H:
Block Diagram
Key Features
• 0.1% Accuracy Over 2000:1 Current Range
• Exceeds IEC 62053/ANSI C12.20 Standards
• Compatible with Shunt Resistors as Low as 50µΩ
• On-Chip Temperature Sensor Enables Localized
Digital Temperature Compensation by the
MAX71xxx
• Dual 24-Bit ADC
• Powered from the MAX71xxx Using Pulses Sent
Through the Transformer
• 1.4mA Typical Consumption
• On-Chip Power Monitoring
• Industrial Temperature Range
• Small 10-Pin µMAX Package
®
Applications/Uses
• Industrial Energy
Meters
• Residential Energy
Meters
• Smart Grid
Monitoring
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-Channel Isolated Metrology ADCs - Maxi
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