Analog Devices LTC6820 | Demoboard DC2792B

Description

The demonstration circuit DC2792B is an SPI serial to dual-port isoSPI adapter that uses a pair of multiplexed LTC6820 isoSPI transceivers and miniaturized isoSPI connectors (2 contact DuraClik). The board can functionally replace a DC1941 in cases where isoSPI battery-management (BMS) devices are being evaluated, but provides a second isoSPI master to exercise the reversible isoSPI feature where available. The SPI interface can be provided via the legacy 14-contact ribbon cable from either a DC590 or DC2026 USB adapter, or directly installed on the DC2026 as a Linduino shield. The two isoSPI ports are MAIN and AUXiliary, with activity of each indicated by blue LEDs. For use in place of DC1941 or non-reversible isoSPI networks, the MAIN port must be used. Power for the DC2792B comes indirectly from the USB port of the host computer, via the USB to serial adapter being used.

Features

• AEC-Q100 Qualified for Automotive Applications
• 1Mbps Isolated SPI Data Communications
• Simple Galvanic Isolation Using Standard Transformers
• Bidirectional Interface Over a Single Twisted Pair
• Supports Cable Lengths Up to 100 Meters
• Very Low EMI Susceptibility and Emissions
• Configurable for High Noise Immunity or Low Power
• Engineered for ISO26262 Compliant Systems
• Requires No Software Changes in Most SPI Systems
• Ultralow, 2µA Idle Current
• Automatic Wake-Up Detection
• Operating Temperature Range: –40°C to 125°C
• 2.7V to 5.5V Power Supply
• Interfaces to All Logic from 1.7V to 5.5V
• Available in 16-Lead QFN and MSOP Packages

Typical applications

• Remote Sensors
• Battery Monitoring Systems
• Industrial Networking

More information

• Datasheet
• IC product information