Datasheet Analog Devices LTC4300A-2IMS8#PBF

LTC4300A-1/LTC4300A-2
Hot Swappable
2-Wire Bus Buffers
FEATURES DESCRIPTION n The LTC®4300A series hot swappable 2-wire bus buffers
allow I/O card insertion into a live backplane without corruption of the data and clock busses. When the connection is
made, the LTC4300A-1/LTC4300A-2 provide bidirectional
buffering, keeping the backplane and card capacitances
isolated. Rise-time accelerator circuitry* allows the use of
weaker DC pull-up currents while still meeting rise-time
requirements. During insertion, the SDA and SCL lines are
precharged to 1V to minimize bus disturbances. Bidirectional Buffer for SDA and SCL Lines
Increases Fanout
Prevents SDA and SCL Corruption During Live
Board Insertion and Removal from Backplane
Isolates Input SDA and SCL Lines from Output
Compatible with I2C, I2C Fast Mode and SMBus
Standards (Up to 400kHz Operation)
Low ICC Chip Disable: …