ADM232A

a High-Speed, 5 V, 0.1 ␮F CMOS RS-232 Drivers/Receivers ADM222/ADM232A/ADM242 FEATURES 200 kB/s Transmission Rate Small (0.1 ␮F) Charge Pump Capacitors Single 5 V Power Supply Meets All EIA-232-E and V.28 Specifications Two Drivers and Two Receivers On-Board DC-DC Converters ؎9 V Output Swing with 5 V Supply ؎30 V Receiver Input Levels Pin Compatible with MAX222/MAX232A/MAX242 APPLICATIONS Computers Peripherals Modems Printers Instruments GENERAL DESCRIPTION The ADM222, ADM232A, ADM242 are a family of high-speed RS-232 line drivers/receivers offering transmission rates up to 200 kB/s. Operating from a single 5 V power supply, a highly efficient on-chip charge pump using small (0.1 µF) external capacitors allows RS-232 bipolar levels to be developed. Two RS-232 drivers and two RS-232 receivers are provided on each device. The devices are fabricated on BiCMOS, an advanced mixed technology process that combines low power CMOS with highspeed bipolar circuitry. This allows for tran...