Craft Port Tiny RS-232 Transceiver for Portable Applications Data Sheet ADM101E FUNCTIONAL BLOCK DIAGRAM FEATURES 460 kbit/s Transmission Rate Single 5 V Power Supply Compatible with RS-232 Input/Output Levels 0.1 F 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 A I CC Ultralow Power (1 A) Shutdown Mode 10-Lead MSOP Package Qualified for Automotive Applications APPLICATIONS Figure 1. Mobile Telephones Palmtop Computers PDAs Portable Instrumentation GPS Receivers GENERAL DESCRIPTION The ADM101E is a single channel RS-232 driver and receiver in An epitaxial BiCMOS construction minimizes power consumption the Analog Devices Craft Port series, designed to operate from a to 3 mW and also guards against latch-up. Overvoltage protection single, 5 V supply. A highly efficient charge-pump voltage inverter is provided allowing the receiver inputs to withstand continuous generates an on-chip 5 V supply, which eliminates the need for voltages in excess of 30 V. In addition, all I-O pins have ESD a negative power supply for the driver and permits RS-232 protection to levels greater than 15 kV. compatible output levels to be developed using charge pump The ADM101E is available in a 10-lead MSOP package, which capacitors as small as 0.1 F. makes it ideal for serial communications in small, portable A shutdown input disables the charge pump and puts the device applications such as palmtop computers and mobile telephones, into a low power shutdown mode, in which the current where a full, RS-232 serial interface is not required, but compact consumption is typically less than 1 A. The transmitter is size and low power drain are paramount. disabled during shutdown but the receiver remains functional. Craft Port is a trademark of Analog Devices, Inc. Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20012014 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. ADM101E Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 General Description ..........................................................................8 Applications ....................................................................................... 1 Circuit Description............................................................................9 Functional Block Diagram .............................................................. 1 Charge Pump DC-DC Converter ...............................................9 General Description ......................................................................... 1 Charge Pump Capacitors and Supply Decoupling ...................9 Revision History ............................................................................... 2 Transmitter (Driver) Section .......................................................9 Specifications ..................................................................................... 3 Receiver Section ............................................................................9 Absolute Maximum Ratings ............................................................ 4 Shutdown Input .............................................................................. 10 ESD Caution .................................................................................. 4 Outline Dimensions ....................................................................... 11 Pin Configuration and Function Descriptions ............................. 5 Ordering Guide .......................................................................... 11 Typical Performance Characteristics ............................................. 6 Automotive Products ................................................................. 11 REVISION HISTORY 3/14Rev. A to Rev. B Added Automotive Model ............................................ Throughout Changed SOIC Package to MSOP Package .............. Throughout Updated Outline Dimensions ....................................................... 11 Changes to Ordering Guide .......................................................... 11 Added Automotive Products Section .......................................... 11 2/01Rev. 0 to Rev. A Changes made to Outline Dimensions (RM-10) ......................... 6 Rev. B Page 2 of 12