15 kV ESD Protected, 3.3 V Single- Channel RS-232 Line Driver/Receiver Data Sheet ADM3101E FEATURES FUNCTIONAL BLOCK DIAGRAM +3.3V INPUT 460 kbps data rate 1 Tx and 1 Rx V C1+ CC C1 +3.3V TO +6.6V + C3 C5 0.1F + Meets EIA/TIA-232E specifications VOLTAGE DOUBLER 0.1F 0.1F 16V C1 V+ 6.3V 0.1 F charge pump capacitors C2+ V C2 Contact discharge: 8 kV +6.6V TO 6.6V C4 0.1F + VOLTAGE INVERTER 0.1F 16V Air gap discharge: 15 kV C2 16V T T IN OUT CMOS EIA/TIA-232E T APPLICATIONS INPUT OUTPUT ADM3101E General-purpose RS-232 data links R R OUT IN Industrial/telecommunications diagnostics ports CMOS EIA/TIA-232E R OUTPUT INPUT* GND *INTERNAL 5k PULL-DOWN RESISTOR ON THE RS-232 INPUT. Figure 1. GENERAL DESCRIPTION The ADM3101E is a high speed, single-channel, RS-232/ Because of the 15 kV ESD protection of the ADM3101E ITU-T V.28 transceiver interface device that operates from input/output pins, this device is ideally suited for operation a single 3.3 V power supply. Low power consumption makes in electrically harsh environments or where RS-232 cables are it ideal for battery-powered portable instruments. frequently plugged and unplugged. The ADM3101E conforms to the EIA/TIA-232E and ITU-T V.28 Four external 0.1 F charge pump capacitors are used for the specifications and operates at data rates of up to 460 kbps. voltage doubler/inverter permitting operation from a single 3.3 V supply. All RS-232 (TOUT and RIN) and CMOS (TIN and ROUT) inputs and outputs are protected against electrostatic discharges (up The ADM3101E is available in both a 12-lead LFCSP and 16-lead to 15 kV ESD protection). QSOP, specified over the 40C to +85C temperature range. Rev. D 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 20072015 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. 06766-001 + +ADM3101E Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configurations and Function Descriptions ............................5 Applications ....................................................................................... 1 Typical Performance Characteristics ..............................................6 Functional Block Diagram .............................................................. 1 Theory of Operation .........................................................................8 General Description ......................................................................... 1 Circuit Description .......................................................................8 Revision History ............................................................................... 2 High Baud Rate ..............................................................................8 Specif icat ions ..................................................................................... 3 Outline Dimensions ..........................................................................9 Absolute Maximum Ratings ............................................................ 4 Ordering Guide .............................................................................9 ESD Caution .................................................................................. 4 REVISION HISTORY 5/15Rev. C to Rev. D 10/07Rev. 0 to Rev. A Change to , Thermal Impedance (LFCSP) Parameter, Changes to Figure 1 ........................................................................... 1 JA Table 2 ................................................................................................ 4 Changes to Table 1, RS-232 Receiver Section ................................ 3 Changes to Figure 2 and Table 3 ..................................................... 5 Changes to Table 3 ............................................................................. 5 Changes to Ordering Guide ............................................................ 9 Changes to Figure 11 ......................................................................... 8 Updated Outline Dimensions ......................................................... 9 5/07Revision 0: Initial Version 7/08Rev. B to Rev. C Changes to General Description Section ...................................... 1 Reformatted Table 1 ......................................................................... 4 Change to TIN Rating, Table 2 ......................................................... 4 Changes to Figure 2 .......................................................................... 5 Moved High Baud Rate Section ...................................................... 8 Added Exposed Pad Notation to Outline Dimensions ............... 9 12/07Rev. A to Rev. B Added 16-Lead QSOP Package (Universal) ................................. 1 Updated Outline Dimensions ....................................................... 10 Changes to Ordering Guide .......................................................... 10 Rev. D Page 2 of 12