LTC6820HUD#TRPBF

LTC6820HUD#TRPBF is an isoSPI isolated communications interface. It provides bidirectional SPI communications between two isolated devices through a single twisted pair connection. The LTC6820 encodes logic states into signals that are transmitted across an isolation barrier to another LTC6820. The receiving LTC6820 decodes the transmission and drives the server bus to the appropriate logic states. The isolation barrier can be bridged by a simple pulse transformer to achieve hundreds of volts of isolation. This device drives differential signals using matched source and sink currents, eliminating the requirement for a transformer center tap and reducing EMI. Precision window comparators in the receiver detect the differential signals. It is used in applications such as industrial networking, battery monitoring systems, remote sensors.

• 1Mbps isolated SPI data communications, very low EMI susceptibility and emissions
• Simple galvanic isolation using standard transformers
• Bidirectional interface over a single twisted pair
• Configurable for high noise immunity or low power
• Engineered for ISO26262 compliant systems, automatic wake-up detection
• Power supply voltage range from 2.7V to 5.5V
• Receiver input resistance is 35Kohm typical at (TA = 25°C. VDD = 2.7V to 5.5V)
• Input/output pin capacitance is 10pF maximum at (TA = 25°C. VDD = 2.7V to 5.5V)
• Operating temperature range from -40°C to 125°C
• 16-lead plastic QFN package

Remarques

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party