Low-Offset Bus Buffer
The LTC4307, an I2C bus buffer with low offset and stuck bus recovery adds only 50 mV of low offset voltage between input and output, instead of the typical 100 mV or more.
This lets users
cascade several LTC4307s in series and
maintain VOL levels and large noise
margins. It also has stuck-bus recovery
circuitry that detects and clears stuck
buses. So if the serial data output or
serial clock output are low for more than
30 msec, LTC4307 breaks the data and
clock bus connections and generates up
to 16 clock pulses. Furthermore, the
LTC4307 provides capacitive isolation
between backplane and the card's I2C
busses, even if their respective supplies
are at different levels. The LTC4307 is
available in eight-lead MSOP and 3 ×
3–mm DFN packages.
Linear Technology Corp.,
1630
McCarthy Blvd., Milpitas, CA 95035,
(408) 432-1900,
linear.com/