Patent ID: 7738568
Filing Date: 2010-06-15
Classification: H01L,H02M,H04B,H04L

Abstract:
1. An integrated circuit isolator providing for communications of multiple digital data signals over a common communications channel across a voltage isolation barrier, comprising: an integrated circuit package having a plurality of input pins for receiving respective ones of a plurality of input digital data signals and a plurality of output pins for outputting a plurality of respective output digital data signals; a transformer disposed between the input and output pins to provide the voltage isolation barrier within the package between the plurality of input pins and the plurality of output pins and for passing the input digital signals between the plurality of input pins and the plurality of output pins over the common communications channel, wherein the voltage isolation barrier provides voltage isolation of up to 5000 volts; a time multiplexer to time multiplex the input digital data signals and transmit the time multiplexed input digital data signals across the transformer from one side thereof; and a time demultiplexer for receiving from the transformer on an other side thereof, and voltage isolated from the one side thereof, the multiplexed input digital data signals and demultiplexing the received multiplexed input digital data signals as a reconstructed sample of the respective output digital data signals and a latch for latching the reconstructed sample onto the respective one of the plurality of output pins.