特点
Operates from a Single 3.3V Supply
Low Supply Current: I
CC
= 200μA
I
CC
= 35μA in Driver Disable Mode
I
CC
= 0.2μA in Shutdown Mode
ESD Protection Over ±10kV
Uses Small Capacitors: 0.1μF
Operates to 120kBaud
Output Overvoltage Does Not Force Current Back into Supplies
EIA/TIA-562 I/O Lines Can Be Forced to ±25V Without Damage
Pin Compatible with LT 1180A
典型应用
典型应用
描述
The LTC?1385 is an ultra-low power, 2-driver/2-receiver EIA / TIA-562 transceiver which operates from a single 3.3V supply. The charge pump requires only four spacesaving 0.1μF capacitors.
The transceiver operates in one of three modes: Normal, Driver Disable or Shutdown. In the Normal mode, I CC is only 200μA in the unloaded condition. In the Driver Disable mode, the charge pump is turned off, the driver outputs are forced into three-state, both receivers are kept active, and I CC drops to 35μA. In the Shutdown mode, everything is turned off and I CC drops to 0.2μA.
The LTC1385 is fully compliant with all data rate and overvoltage EIA/ TIA-562 specifications. The transceiver can operate up to 120kbaud with a 1000pF, 3k Ohm load. Both driver outputs and receiver inputs can be forced to ±25V without damage, and can survive multiple ±10kV ESD strikes.