特点
Low Supply Current: 300μA
Five Receivers Kept Alive in Shutdown
ESD Protection Over ±10kV
Operates from a Single 5V Supply
Uses Small Capacitors: 0.1μF
Operates to 120kBaud
Three-State Outputs Are High Impedance When Off
Output Overvoltage Does Not Force Current Back into Supplies
RS232 I/O Lines Can Be Forced to ±25VWithout Damage
Pin Compatible with LT1137A and LT1237
Flowthrough Architecture
典型应用
典型应用
描述
The LTC?1347 is a 3-driver/5-receiver RS232 transceiver with very low supply current. In the no load condition, the supply current is only 300μA. The charge pump onlyrequires four 0.1μF capacitors.
In Shutdown mode, all five receivers are kept alive and the supply current is 80μA. All RS232 outputs assume a high impedance state in Shutdown and with the power off.
The LTC1347 is fully compliant with all data rate and overvoltage RS232 specifications. The transceiver can operate up to 120kbaud with a 2500pF, 3k ? load. Bothdriver outputs and receiver inputs can be forced to ?25V without damage, and can survive multiple ±10kV ESD strikes.