LTC4315
2-Wire Bus Buffer with
High Noise Margin
FEATURES DESCRIPTION n The LTC4315 is a hot-swappable 2-wire bus buffer
that provides bidirectional buffering, while maintaining a low offset voltage and high noise margin up to
0.3 • VCC. The high noise margin allows the LTC4315 to be
interoperable with devices that drive a high VOL (>0.4V)
and allows multiple LTC4315s to be cascaded. The LTC4315
supports level translation between 1.5V, 1.8V, 2.5V, 3.3V
and 5V busses. Bidirectional Buffer Increases Fanout
High Noise Margin with VIL = 0.3 • VCC
Compatible with Non-Compliant I2C Devices That
Drive a High VOL
Selectable Rise Time Accelerator Current
Level Shift 1.5V, 1.8V, 2.5V, 3.3V and 5V Busses
Prevents SDA and SCL Corruption During Live Board
Insertion and Removal from Backplane
Stuck Bus Disconnect and Recovery
Compatible with I2C, I2C Fast Mode and SMBus
±4kV Human Body Model ESD Ruggedness
High Impedance SDA, SCL pins When Unpowered
12-Lead (4mm × 3mm) DFN and 12-Lead MSOP
Packages If both data and clock are not simultaneously high at …