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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MAX71071 Dual-Channel Isolated Metrology ADCs - Maxim

7/11/2014

http://www.maximintegrated.com/en/products/industries/metering-energy-measurement/MAX71071.html