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ADM223 数据表(PDF) 5 Page - Analog Devices |
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ADM223 数据表(HTML) 5 Page - Analog Devices |
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5 / 16 page ![]() ADM223/ADM230L–ADM241L –5– REV. B 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 TOP VIEW (Not to Scale) ADM232L T1IN R1IN T1OUT R1OUT V+ VCC GND T2IN R2IN T2OUT R2OUT V– C1+ C1– C2– C2+ Figure 5. ADM232L DIP/SOIC Pin Configuration 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 TOP VIEW (Not to Scale) ADM233L R1IN T2IN R2IN T1OUT T2OUT R1OUT V+ V– VCC C1+ C2– C2+ C1– GND GND C2+ C2– R2OUT V– T1IN Figure 7. ADM233L DIP Pin Configuration ADM232L 1 F 6.3V 1 F 16V C1+ C1– C2– C2+ T1IN T1 T1OUT T2IN T2 T2OUT TTL/CMOS INPUTS* RS-232 OUTPUTS R1OUT R1 R1IN R2OUT R2IN TTL/CMOS OUTPUTS RS-232 INPUTS** R2 V– 1 F 16V +10V TO –10V VOLTAGE INVERTER 1 F 6.3V 1 F 6.3V 5V INPUT V+ VCC +5V TO +10V VOLTAGE DOUBLER GND * INTERNAL 400k PULL-UP RESISTOR ON EACH TTL/CMOS INPUT. ** INTERNAL 5k PULL-DOWN RESISTOR ON EACH RS-232 INPUT. Figure 6. ADM232L Typical Operating Circuit ADM233L C1+ C1– V– V– T1IN T1 T1OUT T2IN T2 T2OUT TTL/CMOS INPUTS* RS-232 OUTPUTS R1OUT R1 R1IN R2OUT R2IN TTL/CMOS OUTPUTS RS-232 INPUTS** R2 C2– C2+ VCC GND * INTERNAL 400k PULL-UP RESISTOR ON EACH TTL/CMOS INPUT. ** INTERNAL 5k PULL-DOWN RESISTOR ON EACH RS-232 INPUT. 5V INPUT GND INTERNAL –10V POWER SUPPLY INTERNAL +10V POWER SUPPLY V+ C2+ C2– DO NOT MAKE CONNECTIONS TO THESE PINS Figure 8. ADM233L Typical Operating Circuit OBSOLETE |
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