ADI ADM101EWARMZ-REEL7

The ADM101E is an RS-232 compatible line driver/receiver, containing one driver (transmitter) and one receiver. It is ideal for serial communication in small portable devices such as mobile telephones, palmtop personal computers and personal digital assistants, where a full, RS-232 serial interface is not required, and only Tx and Rx lines are required for low speed communication between devices. The ADM101E operates from a single, 5 V supply, and generates its own, on-chip, -5 V power supply, thus removing the need for a negative power supply for the driver. A shutdown input disables the charge pump and puts the device into a low power shutdown mode, in which the current consumption is typically less than 1 μA. The transmitter is disabled during shutdown but the receiver remains functional. An epitaxial BiCMOS construction minimizes power consumption to 3 mW and also guards against latch-up. Overvoltage protection is provided allowing the receiver inputs to withstand continuous voltages in excess of ±30 V. In addition, all I-O pins have ESD protection to levels greater than 15 kV.

• 460 kbit/s Transmission Rate
• Single 5 V Power Supply
• Compatible with RS-232 Input/Output Levels
• 0.1 μF Charge Pump Capacitors
• One Driver and One Receiver
• On-Board DC-DC Converter
• ±4.2 V Output Swing with 5 V Supply
• Low Power BiCMOS: 500 μA ICC
• Ultralow Power (1 μA) Shutdown Mode
• 10-Lead MSOP Package
• Qualified for Automotive Applications

• Mobile Telephones
• Palmtop Computers
• PDAs
• Portable Instrumentation
• GPS Receivers