特点
Low Supply Current: 500μA
0.2μA Supply Current in SHUTDOWN
50μA Supply Current in RECEIVER ALIVE Mode
ESD Protection Over ±10kV
Operates from a Single 5V Supply
Uses Small Capacitors: 0.1μF
Operates to 120k Baud
Three-State Outputs Are High Impedance When Off
Output Overvoltage Does Not Force Current
RS232 I/O Lines Can Be Forced to ±25V Without Damage
Flowthrough Architecture
典型应用
典型应用
描述
Please download the following Change Notice concerning SOIC, PDIP and CERDIP Wide Body Packages. sntopm.pdf
The LTC1338 is a 5-driver/3-receiver RS232 transceiver with very low supply current. In the no load condition, the supply current is only 500μA. The charge pump only requires four 0.1μF capacitors.
In SHUTDOWN mode, the supply current is further reduced to 0.2μA. In RECEIVER ALIVE mode, all three receivers are kept alive and the supply current is 50μA. All RS232 outputs assume a high impedance state in SHUTDOWN and with the power off.
The LTC1338 is fully compliant with all data rate and overvoltage RS232 specifications. The transceiver can operate up to 120k baud with a 2500pF, 3kohms load. Both driver outputs and receiver inputs can be forced to ?25V without damage, and can survive multiple ±10kV ESD strikes.