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ADM1181AAN 数据表(PDF) 1 Page - Analog Devices |
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ADM1181AAN 数据表(HTML) 1 Page - Analog Devices |
1 / 12 page REV. 0 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 rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a EMI/EMCCompliant, 15kVESDProtected, RS-232 Line Drivers/Receivers ADM202E/ADM1181A © Analog Devices, Inc., 1996 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 FUNCTIONAL BLOCK DIAGRAMS C1+ C1– C2+ C2– VCC 0.1µF 10V 0.1µF 10V V+ V– +5V TO +10V VOLTAGE DOUBLER 3 1 2 +5V INPUT C3 0.1µF 10V 4 5 +10V TO –10V VOLTAGE INVERTER 6 C4 0.1µF 10V 14 11 T1OUT T1IN 16 C5 0.1µF 10V 7 10 T2OUT T2IN 12 13 8 9 ADM1181A R1OUT R2OUT R1IN R2IN CMOS INPUTS CMOS OUTPUTS EIA/TIA-232 OUTPUTS EIA/TIA-232 INPUTS * 15 NOTE *INTERNAL 5k Ω PULL-DOWN RESISTOR ON EACH RS-232 INPUT GND C1+ C1– C2+ C2– VCC 0.1µF 10V 0.1µF 10V V+ V– +5V TO +10V VOLTAGE DOUBLER 3 1 2 +5V INPUT C3 0.1µF 6.3V 4 5 +10V TO –10V VOLTAGE INVERTER 6 C4 0.1µF 10V 14 11 T1OUT T1IN 16 C5 0.1µF 7 10 T2OUT T2IN 12 13 8 9 ADM202E R1OUT R2OUT R1IN R2IN CMOS INPUTS CMOS OUTPUTS EIA/TIA-232 OUTPUTS EIA/TIA-232 INPUTS * 15 NOTE *INTERNAL 5k Ω PULL-DOWN RESISTOR ON EACH RS-232 INPUT GND T1 T2 R1 R2 T1 T2 R1 R2 GENERAL DESCRIPTION The ADM202E and ADM1181A are robust, high speed, 2- channel RS232/V.28 interface devices that operate from a single +5 V power supply. Both products are suitable for operation in harsh electrical environments and are compliant with the EU di- rective on EMC (89/336/EEC). Both the level of electromag- netic emissions and immunity are in compliance. EM immunity includes ESD protection in excess of ±15 kV on all I/O lines, Fast Transient burst protection (1000-4-4) and Radiated Im- munity (1000-4-3). EM emissions include radiated and conducted emissions as required by Information Technology Equipment EN55022, CISPR22. The ADM202E and ADM1181A conform to the EIA-232E and CCITT V.28 specifications and operate at data rates up to 230 kbps. Four external 0.1 µF charge pump capacitors are used for the voltage doubler/inverter permitting operation from a single +5 V supply. The ADM202E provides a robust pin-compatible upgrade for existing ADM202, ADM232L or MAX202E/MAX232E sock- ets. It is available in a 16-pin DIP, wide and narrow SO and also a space saving TSSOP package. The TSSOP package gives a 44% space saving over SOIC. The ADM1181A provides a robust pin compatible upgrade for the LTC1181A, and it is available in 16-pin DIP and 16-lead SO packages. FEATURES Complies with 89/336/EEC EMC Directive ESD Protection to IEC1000-4-2 (801.2) 8 kV: Contact Discharge 15 kV: Air-Gap Discharge 15 kV: Human Body Model EFT Fast Transient Burst Immunity (IEC1000-4-4) Low EMI Emissions (EN55022) 230 kbits/s Data Rate Guaranteed TSSOP Package Option Upgrade for MAX202E, 232E, LT1181A APPLICATIONS General Purpose RS-232 Data Link Portable Instruments PDAs ORDERING GUIDE Model Temperature Range Package Option ADM202EAN –40 °C to +85°C N-16 ADM202EARW –40 °C to +85°C R-16W ADM202EARN –40 °C to +85°C R-16N ADM202EARU –40 °C to +85°C RU-16 ADM1181AAN –40 °C to +85°C N-16 ADM1181AARW –40 °C to +85°C R-16W |
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