ADI LTC6820IMS#PBF

隔离式通信接口SPI2.7V ~ 5.5V表面贴装型

Overview

The LTC6820IMS provides bidirectional SPI communications between two isolated devices through a single twisted-pair connection. Each LTC6820IMS encodes logic states into signals that are transmitted across an isolation barrier to another LTC6820. The receiving LTC6820IMS decodes the transmission and drives the slave bus to the appropriate logic states. The isolation barrier can be bridged by a simple pulse transformer to achieve hundreds of volts of isolation.

The LTC6820IMS 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. The drive currents and the comparator thresholds are set by a simple external resistor divider, allowing the system to be optimized for required cable lengths and desired signal-to-noise performance.

Features

isoSPI Series
It is based on LTC6820.

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LTC6820IMS#PBF Specialized Interface ICs applications.

• High-Voltage
• Transmit and
• Low-Voltage
• Isolation
• Medical/Industrial
• Imaging
• Ultrasound
• Audio and video switching
• Automatic test equipment
• Precision data acquisition