High Speed, 5 V, 0.1 F CMOS RS-232 Driver/Receiver Data Sheet ADM202 FEATURES TYPICAL APPLICATION CIRCUIT 5V INPUT 120 kB transmission rate Small (0.1 F) charge pump capacitors + 0.1F V 1 C1+ 16 Single 5 V power supply +5V TO +10V CC 6.3V + 0.1F 0.1F VOLTAGE 6.3V 6.3V DOUBLER + Meets TIA/EIA-232-E and V.28 specifications 3 C1 V+ 2 2 drivers and 2 receivers 4 C2+ +10V TO 10V + 0.1F On-board dc-to-dc converters VOLTAGE V 6 16V INVERTER 0.1F 5 C2 9 V output swing with 5 V supply 16V + Low power BiCMOS: 2.5 mA I CC T1 11 14 T1 IN T1 OUT 30 V receiver input levels TTL/CMOS RS-232 1 INPUTS OUTPUTS T2 T2 IN 10 T2 7 OUT APPLICATIONS R1 OUT 12 R1 13 R1 Computers IN RS-232 TTL/CMOS 2 OUTPUTS INPUTS Peripherals R2 9 R2 8 R2 OUT IN Modems GND ADM202 Printers 15 Instruments 1 INTERNAL 400k PULL-UP RESISTOR ON EACH TTL/CMOS INPUT. 2 INTERNAL 5k PULL-DOWN RESISTOR ON EACH RS-232 INPUT. Figure 1. GENERAL DESCRIPTION The ADM202 is a 2-channel RS-232 line driver/receiver pair An epitaxial BiCMOS construction minimizes power consump- designed to operate from a single 5 V power supply. A highly tion to 10 mW and guards against latch-up. Overvoltage efficient on-chip charge pump design permits RS-232 levels to protection is provided, allowing the receiver inputs to withstand be developed using charge pump capacitors as small as 0.1 F. continuous voltages in excess of 30 V. In addition, all pins This converter generates 10 V RS-232 output levels. contain ESD protection to levels greater than 2 kV. The ADM202 meets or exceeds the TIA/EIA-232-E and V.28 The ADM202 is available in a 16-lead PDIP and both narrow specifications. Fast driver slew rates permit 120 kB operation, and wide 16-lead SOIC packages. and high drive currents allow extended cable lengths. Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. 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Technical Support www.analog.com 00065-001ADM202 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................6 Applications ....................................................................................... 1 Theory of Operation .........................................................................7 Typical Application Circuit ............................................................. 1 Applications Information .................................................................8 General Description ......................................................................... 1 Charge Pump DC-to-DC Voltage Converter ............................8 Revision History ............................................................................... 2 TTL/CMOS to RS-232 Transmitters (Drivers) .........................8 Specifications ..................................................................................... 3 RS-232 to TTL/CMOS Receivers ................................................8 Absolute Maximum Ratings ............................................................ 4 Outline Dimensions ..........................................................................9 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 10 Pin Configuration and Function Descriptions ............................. 5 REVISION HISTORY 8/2016Rev. A to Rev. B Changes to Table 2 ............................................................................. 4 Updated Format .................................................................. Universal Changes to Table 3 ............................................................................. 5 Deleted ADM203 ................................................................ Universal Changes to Theory of Operation Section....................................... 7 Changes to Typical Application Circuit Section Heading........... 1 Changes to TTL/CMOS to RS-232 Transmitters (Drivers) Deleted ADM203 Functional Block Diagram Figure Section and RS-232 to TLL/CMOS Receivers Section ................. 8 Renumbered Sequentially ................................................................ 1 Updated Outline Dimensions .......................................................... 9 Changes to Features Section and General Description Section . 1 Changes to Ordering Guide .......................................................... 10 Deleted ADM203 Pin Configuration Figure and Figure 1 ......... 3 Changed T to Tx ....................................................... Throughout 1/2001Rev. 0 to Rev. A IN IN Rev. B Page 2 of 10